12 best solar charger controllers

Product description

A solar charger gathers energy from your solar panels, and stores it in your batteries. Using the latest, fastest technology, SmartSolar maximises this energy-harvest, driving it intelligently to achieve full charge in the shortest possible time. SmartSolar maintains battery health, extending its life. The SmartSolar charge controller will even recharge a severely depleted battery. It can operate with a battery voltage as low as 0 Volts, provided the cells are not permanently sulphated or otherwise damaged.

User questions & answers

Question:	What is the default battery type setting if I choose to plug and play without messing with the blutooth app or an additional control module
Answer:	AGM. That being said, the app takes about 20 seconds to set up and use, so it's worth the time.
Question:	what's the maximum load wattage I can put on this? I know the max charge current is 20a, but is the load fused, or just pulls from battery
Answer:	To correct multiple incorrect answers on this question: The fuse is to protect the charge controller from reverse battery connection: it DOES NOT protect the load output, nor does it protect the charging circuit to the battery, nor does it protect the PV input. Please see the user manual available at victronenergy.com/support-and-downloads/manuals.
Question:	When using an a/c battery charger/converter, do i hook it's output to the load side of the controller
Answer:	You can have multiple charging inputs to the batteries. They will work just fine independent of each other. Typical motorhome has alternator, inverter/charger and solar charger connected.
Question:	The item i received says 48v on the side. will it work with 12v/24v systems
Answer:	Even though the mppt has the 48V stamp, it will work with 12V 24V & 48V systems. The 48V is to differentiate it from the 12V/24V only mppt. Here is documetation from Victron showing it will work with all three Voltages. https://www.victronenergy.com/upload/documents/Datasheet-SmartSolar-charge-controller-MPPT-75-10,-75-15,-100-15,-100-20_48V-EN.pdf

Product description

☀️Suitable for farm solar power system, solar street light, solar patio light, solar billboards, outdoor camping solar system, ship solar system.

Specification:

*Batt voltage: DC 12V/24V Auto

*Charge /Discharge current: 20A

*Over discharge Protection: 10.7V/21.4V

*Charge recover voltage: 12.6V/25.2V

*Overcharge Floating charge: 13.7V/27.4V

*Over discharge Protection: 10.7V/21.4V

*Equalization: B01: sealed 14.4V / B02: Gel 14.2V / B03: flood 14.6V



Intelligent solar controller:

The product can automatically manage the working of solar panel and battery in solar system. For protecting the lifespan of your battery, once the voltage of the battery drop below 8V, the solar controller will turn off automatically (LCD will be unavailable at the same time).



Easy to operate and installation :

Wiring STEPS: Screw the adjustment screw counter-clockwise until the plates move down. Insert the wire into the new opening between the plate and the "top" of the Terminal hole, not under it. Screw the adjuster clockwise and the plate will move upwards thereby squishing the wire in the Terminal hole.

Installation STEPS：Connect the system in the order of 1.Battery > 2. Load > 3.PV Array in accordance with Figure, and disconnect the system in the reverse order 3. 2 .1.



Note:

<1>Please keep it in cool and well ventilated place to maintain good heat dissipation.

<2>the regulator is only suitable for lead acid batteries:OPEN, AGM, GEL, not for nickel hydride, lithium, ions, or other batteries.

<3>Make sure your battery has enough voltage for the controller to recognize the battery before first installation.

<4>The working temperature of this controller is -35°C to 60°C, during hot sunny days, the temperature outside might go up to 60-75°C. Please do keep the controller stay in cool and well-ventilated place to maintain good heat dissipation.

• ☀☀☀20A Solar Charge controller : Binen solar charger controller are UL 1741 certified,the solar charger controller compatibility with 12V 24V system. Discharge Current: 10A,build-in industrial micro controller, automatically manage the working of solar panel and battery in solar system. Dual USB output 5V/2.5A (max), to support mobile phone chargeing.
• ☀☀☀Multiple Protection Functions: Binen solar controller has short-circuit protection, open-circuit protection,reverse protection, over-load protection. Fully 3-stage PWM charge management, improve system efficiency and prolong the life span of the battery.
• ☀☀☀Battery Type: The charge regulator is only suitable for lead-acid batteries: OPEN, AGM, GEL, it is not suited for nickel hydride, lithium, Liions, or other batteries. For protecting the lifespan of your battery, once the voltage of the battery drop below 8V, the solar controller will turn off automatically.
• ☀☀☀LCD Display: Comes with a display that can clearly indicate the status and data, it can be conveniently switched modes and parameter configuration, suitable for home, industrial, commercial etc.
• ☀☀☀Easy to Install and Operate: The charge controller should connect the battery first, then the solar panel, and finally the load! The disassembly sequence is contrary to the wiring order.Dual mosfet Reverse current protection, low heat production. ( Note: The charge controller will heat up when it is running. Please be careful to install the charger controller on a flat, well-ventilated place)

Product features

20A solar charger controller

*Rated Voltage: 12V/24V

*Discharge current: 10MA

*Max. PV Voltage: 50V

*Max input power and voltage: 260W /12V; 520W/24V

*Floating charge: 13.7V/27.4V (defaul)

*Discharge Stop: 10.7V/21.4V (defaul)

*Charge recover voltage: 12.6V/25.2V (defaul)

*Load Mode: 24 hours, 1-23 hours, 0 hour

How to adjust the float voltage?

Step 1: The system default float voltage is 13.7V, but you can change it according to your needs. Press MENU to enter the parameter page and find the floating charge voltage page.

How to adjust the float voltage?

Step 2: In floating charge voltage interface long press 3-5 seconds MENU to enter setting and using UP or DOWN to set the floating voltage

Product description

A solar charger gathers energy from your solar panels, and stores it in your batteries. Using the latest, fastest technology, SmartSolar maximises this energy-harvest, driving it intelligently to achieve full charge in the shortest possible time. SmartSolar maintains battery health, extending its life. The SmartSolar charge controller will even recharge a severely depleted battery. It can operate with a battery voltage as low as 0 Volts, provided the cells are not permanently sulphated or otherwise damaged.

User questions & answers

Question:	Does this have battery overcharge protection? Or is it called something different
Answer:	Hello, The MPPT is designed to charge your batteries as a default voltage of 14.4V when in absorption mode (batteries are flat) then it reduces down to 13.8V when batteries are charged. These setting can be adjusted (the 24V setting are default at 28.8V and 27.6V respectively). Maximum output current is 30A. If you are worried about over charging due to different charging needs for your batteries these can be adjusted from the above settings. Hope that help.
Question:	What gauge wire should be used for the chassis ground
Answer:	Search google for "dc wire size chart" and make your own decision. I used 10.
Question:	Do i need a battery monitor with this? Is it really necessary? Im building a setup with 200 watts of panels, 2 100ah agm. I just want to do it right
Answer:	No. I just put one in with a 185W panel. The bluetooth app will show you battery load voltage.
Question:	Does the 100v 30A model have built in bluetooth as well? The picture doesnt show the phone next to it like the other models do
Answer:	All of the SmartSolar models have Bluetooth, the BlueSolar models do not.
Question:	If a conect my panels and my batteries to 24 v what will be the voltage that I¨ll recibe in the in load terminals
Answer:	Let say solar panel produce 36Vdc And battery voltage is 27Vdc The load terminal is about 27Vdc
Question:	What version of the 20amp model is being sold here from amazon? per the manufacturer website, renogy bt, is optimized for rover charge controllers f
Answer:	This is last year's model and currently sold out here the Renogy website and eBay. New models coming. Rich solar still has them at $89.00 for the 20amp..but offers no bt module
Question:	Can I disconnect the battery while the solar collector is still connected
Answer:	No, I dont think that's a good idea since they say connect batteries first the solor panels. If you was to shut ur system down, the go in reverse. Panels discount then battery.
Question:	Is anyone having problems with hf / vhf radio interference (rfi
Answer:	On MPPT and PMI controllers of different brands, RFI particularly in the VHF & UHF bands can be extreme. The solar panels do act as large antennas transmitting the interference. Some fairly simple decoupling circuitry can help. Right at the PV input, i've used a large forward diode into a large, CPU-grade electrolytic along with common-mode chokes on wiring before the diode. On the controller outputs, a "Corcom" type pi-filter helps a lot, but components in series with the output must accept full output current without much voltage drop. This can get rid of about 99% of RFI without too much problem. I do use solar and wind turbines for power at my off-grid property and run amateur radio equipment from 70 cm to 160 meter bands.

Product features

Renogy Rover

20A/30A/40A MPPT Solar Charge Controller w/ LCD Display.

LCD Screen & Multiple LEDs

Displaying system operating information and error codes.

Die-cast Aluminum Design

For efficient heat dissipation.

RS232 Communication Port

Allows communication with optional BT-1 Bluetooth Module and usage of Renogy DC Home App.

Temperature Sensor

Wide Temperature Compensation Range up to 176 F, non-polarized wires are insulated and protected from harsh environments.

Product description

Safety Instructions:

A) Make sure your battery has enough voltage for the waterproof solar charge controller to recognize the battery type before first installation

only sufficient battery voltage can charge or activate the controller. That means it won't charge or activate when hooked to a dead or no-voltage battery.

B) The battery cable should be as short as possible to minimize loss.

C) The regulator is only suitable for lead acid batteries: OPEN,AGM, GEL It is not suited for nickel metal hydride, lithium ions or other batteries.

D) The charge regulator is only suitable for regulating solar panels. Never connect another charging source to the charge regulator.



How to connect solar system with the controller:

Step 1:Connect the battery to the solar charge controller firstly- plus and minus.(it will auto adapts to the battery voltage)

Step 2: Connect the load to the controller secondly.

Step 3: Connect the solar panel to the controller finally - plus and minus.

♥ Note: The reverse order applies when deinstalling.



Specification:

◆ Color: Black

◆ Rated Charging Current: 20A

◆ Rated Discharging Current: 20A

◆ Max Solar Input Voltage: ＜50V

◆ System Voltage: 12V/24V Auto Adapt

◆ Self consume: ＜10mA

◆ Operating Temperature: -20 ~+60℃

◆ Equalize Charging Voltage: 14.4V/28.8V

◆ Bulk Constant Charging Voltage: 14.2V/28.4V

◆ Float Charging: 13.8V/27.6V

◆ Discharge Stop Voltage: 11.2V/22.4V

◆ Discharge Reconnect Voltage: 12.6V/25.2V

◆ Housing: Aluminum alloy

◆ Maximum Wire Size: 16AWG

◆ Size/Weight: 82x45x21mm/120g



Package Include：

● 1 X 20A Waterproof Solar Charge Controller

● 1 X User Manual

• IP68 Rated Waterproof, this Intelligent 4-stage PWM solar charging controller is suitable for outdoor use,you can use it for solar fencing system, solar monitoring system, solar lighting system or other solar system.
• It has short circuit protection, over charge protection, over discharge protection, reverse protection. Can extends battery life time.
• Can automatically senses 12V or 24 Volt for your batteries, working mode of the solar charge regulator is 24 hours.
• With short cables for connecting with solar panel, battery and load, and three LED lights can help you to know solar charging status, battery level, and load status.
• Easy to mount directly on the frame of the solar panel, with heat sink design at bottom and 2pcs mounting holes. its small size also can saves you some space.

User questions & answers

Question:	How many would I need if I run 20 100w (5A) panels into a bank of 48v batteries
Answer:	1x controlador de carga solar 30A 1x manual de usuario en ingles （1x 30A Solar Charge Contorller 1x English User Manual）
Question:	Can I connect an inverter to the load wires? And will it pull power from the battery or just the solar panels
Answer:	One inch thick 2&3/4" tall 5&1/4" long Dim light - blind man so might be a mm or two off Best I can do as it is in a nook hard to measure w tape
Question:	What does 24 hour working mode mean? Like anywhere on earth or won't operate over 24 hours straight? Please explain. Thanks
Answer:	Battery type description： B1 is a lead-acid battery (12V/24V auto) B2 is a lithium ion battery (3 strings of 11.1V lithium batteries); B3 is lithium iron phosphate battery (4 strings 12.8V) Your battery is flooded， please chose B1. Note : please alwasy connect the battery before connect the solar panel,disconnect in reverse order!
Question:	During the day time my hune controller green led is on solid, the white led is blinking red/orange, the red led is off. what is this mean
Answer:	Only powered by solar panel power. If you use 12V system, the input power should > 13V, < 23V. Warm Tips: 1. Always connect the battery before connect the solar panel, disconnect in reverse order. 2. Make sure your battery has enough voltage for the controller to recognize the battery voltage 3.DO NOT connect any inverters, generator or battery charger into the charge controller. If an inverter is to be connected to the system, connect the inverter directly to the battery.

Product description

Features:

*30A Solar Charge Controller: Build-in industrial micro controller, automatically manage the working of solar panel and battery in a solar system.

*LCD Display: clearly indicate the status and data, it can be conveniently switched modes and parameter configuration, parameters adjustable.

*Safe to Use: It has short-circuit protection, open-circuit protection, reverse protection, over-load protection, and fully 3-stage PWM charge management, improve system efficiency and prolong the life span of the battery.

*Easy to Install and Operate: Battery --->Solar Panel ---> Load.

*with Timer Function: You can set the on/off and a certain number of hours as you like, without extra worry, it is convenient for your life.



Specification:

Type: Solar Charge Controller

Battery Voltage: 12V / 24V

Charge Current: 30A

Working Temperature: -35℃ - 60℃ / -90℉ - 140℉

Self consume: 10mA

Float Charge: 13V

USB output: 5V/2.5A

Overcharge Protection: 14.4V/28.8V

Overcharge Floating charge: 13.7V/27.4V

Charge recover voltage: 12.6V/25.2V

Over-discharge Protection: 10.7V/21.4V

Max input power and voltage: 390W /12V; 780W/24V



Q&A

1.Q: How to install it?

A: The charge controller should connect the battery first, then the solar panel, and finally the load. The disassembly sequence is contrary to the wiring order.



2.Q: Without using a battery, can it be wired to an inverter and work directly from that?

A: Sorry no. A solar panel can't run an inverter without a battery.



3. Q: What type of battery do I need?

A: The charge regulator is only suitable for lead-acid batteries: OPEN, AGM, GEL, it is not suited for nickel hydride, lithium, Li-ions, or other batteries. Any questions, please feel free to contact us.



Package Includes: 1 x Solar Charge Controller. 1 x User Manual.

• 【Wide Compatibility】The solar charger controller with 30A rated discharge current is compatible with 12V or 24V system automatically, suitable for lead-acid batteries: OPEN, AGM, GEL. Dual USB 5V/3A output ports support mobile phones, tablet PCs or other devices that require 5V voltage.
• 【Reliable Protection】EEEKit solar charge regulator provides over-current protection, short-circuit protection, inverse connection protection, low voltage and overcharge protection, a reliable protector for your devices.
• 【Intelligent】Build-in industrial microcontroller for automatical management, memorizing various parameters set by the user and the data won't be lost when the battery runs out. The solar controller will turn off automatically once the voltage is too low.
• 【Functional LCD Display】Intuitive LCD display that can clearly indicate the status and data is able to switch modes and parameter configuration, suitable for home, industrial, commercial, etc.
• 【Easy to Use】The charge controller should connect the battery first, then the solar panel, and finally the load! You can change the settings by the simple one-button operation.

User questions & answers

Question:	Can the load be plugged into the usb ports and not wired to the connectors? powering 2 wifi cameras
Answer:	Perhaps. 500 mA limit? Other options: Motorcycle/marine ~12 V to 5V adapter. DroK voltage reducer connected to load wires. Use usb type A voltmeter to measure voltage output.
Question:	Where can I get a copy of the user manual for this controller so I can see if it fits my needs? thanks
Answer:	you can try contact the seller for a copy of the user manual. There are not much you need to know. Three sets (+ & -) of connectors: one to the solar panel output, one to a battery, and one to the load(what ever you want to power). You need the battery (for storage) for it to work.
Question:	Cual es el màximo voltaje que soporta del panel solar
Answer:	12v y 24v
Question:	Why do people try and answer questions here that they clearly don’t have a clue about what they are saying
Answer:	Because Amazon encourages it

Product description

The Renogy Wanderer-Li is a 30A PWM solar charge controller that integrates efficient PWM charging to increase battery life and improve system performance. Designed with a simple interface for ease of use, the controller uses multiple LED indicators to notify users of charge status and battery information. This newly improved model has two advanced features: an RS232 port and Lithium battery charging. With the addition of the RS232 port, users can now connect and communicate with the Renogy BT-1 Bluetooth module. By adding the BT-1 to the Wanderer-Li, you can now use the smartphone app, Renogy BT, to monitor and adjust your solar system remotely. With the inclusion of the Lithium Battery Mode, the 30A negative-ground controller is now capable of charging various 12V battery types and banks, including most 12V lithium models available on the market.

• Wanderer10A|30A Installation Notes: The default starting position of the Wanderer controller terminal hatches are closed (in the UP position) that could mistakenly look like an open wire hatch. Make sure to FIRST lower each terminal hatch by screwing the terminals counterclockwise (CCW) to expose the wire terminal hatch to the open position. THEN secure each cable by rotating the screws clockwise (CW) to the closed position.
• Simple Install: Fully open the hatch (CCW), insert the appropriate wires, and completely close the hatch (CW).
• Multiple LED indicators for easy to read charge status and battery information.
• Optimized for a 12V system; Deep cycle Sealed, Gel, Flooded, and Lithium battery option ready.

User questions & answers

Question:	Is there a way to adjust the float voltage on this unit
Answer:	No, the float voltage on mine is 13.8V no matter the battery type setting. There is a manual on the Renogy website that lists float at 13.2V when set for Flooded batteries. However that is not the case on my unit, which I bought in 2016.
Question:	Can anyone explain the middle led's lighting sequence? What are the possible states of display, blinking, on, what do they mean
Answer:	The middle LED's lighting sequence is as follows: Green ON when battery level is in the right range. Green slowly flashing when battery level is full. Yellow ON when battery level is low. Red ON when loads cut off. Hope this helps.
Question:	max number of 100w panels for this controller
Answer:	This will depend on 2 things: 1 - what is the amp rating of your controller. &. 2 - what is the nominal voltage output of the panels. A 30 amp controller can handle a maximum of 3.6 100 watt panels of 12 volts (100 watts / 12 volts = 8.33 amps, 30 amp controller / 8.33 amp panel = 3.6 panels per controller). Of course, you can't have .6 panels so the safest load would be 3 panels. Yes, math is VERY IMPORTANT when being safe with electronics.
Question:	The description says "These are Positive Ground Controllers." How do you ground a system on the positive side
Answer:	Please ignore this if you're not interested in a dissertation on grounding. First, THIS is a NEGATIVE "ground" controller, so that's GOOD. Why? "Ground" is a misleading term. I've designed stuff for NASA spacecraft that had connections called "ground". Whaaat? We're going to run an extension cord to the spacecraft, so we can keep it tied to a metal pipe stuck in the dirt? Nope. "Ground" is just what electronics folks usually call a COMMON POINT the circuitry is referenced to. It doesn't necessarily have anything to do with the ground we walk on. Electrical stuff works by having two sides, positive and negative, with a voltage difference between them, the "pressure" that makes current flow. Electrical power folks tie one side to the dirt your house sits on, for safety. Your house has water pipes and stuff that's pretty well connected to the dirt. If you grab a water pipe and the 110V ground at the same time there's no voltage difference, so current doesn't flow through you and hurt you. 110V is 10x higher than a solar panel voltage so it's a lot more dangerous. Tying one side to the dirt was a very good idea. Long, long ago, and far, far away, electrical power folks chose the negative side to connect to the dirt, and most stuff made since has pretty much matched that. Then some folks decided to make "positive ground" devices, because for their designs it was easier and cheaper. Some of us think they should have been spanked. It caused all this "positive ground" and "negative ground" malarkey. On to solar power systems. Think of it like this: A controller has electronically controlled switches in it. One switch connects the solar panel to the battery to charge it and disconnects when the battery is full. Another switch connects the load to the battery when you want the load turned on. In a "negative ground" system, the terminals of the panel, battery and load called "minus" or "negative" are all tied together, and the controller switches the positive side connections. Since many loads are connected together on the minus side to ground (dirt) this is a GOOD THING. In a "positive ground" system it's the opposite. The positive side of everything is tied together, and the controller switches the negative side connections. Imagine this: If you connect the battery negative terminal and the load negative terminal both to ground (shorted together) and the controller switch is between them, what happens when the switch opens? That's right, NOTHING. The switch is shorted out by your ground connections so it can't disconnect the load. So that's what's wrong with a positive ground controller. Everyone is used to tying negative together and to ground and they do that and it screws up the controller. But a positive ground controller can be used as long as you don't connect the battery and panel to *anything* except the controller. For example, your van's battery negative is connected to the chassis of your van, and so are the negative sides of all the lights and devices in your van. JUST DON'T TIE THE SOLAR PANEL OR SOLAR BATTERY NEGATIVES TO YOUR VAN CHASSIS TOO. You CAN tie the controller's load output negative to your van chassis, as long as you don't connect any. other. point. in the solar charging system to chassis too. With a "negative ground" controller you don't have to worry about any of this malarkey. You can tie the battery, panel, load negatives all to chassis without any problems. This is why NEGATIVE GROUND CONTROLLERS ARE BETTER. Sorry for the lengthy explanation. I hope folks can follow this and it helps them understand this "ground" stuff.

Product features

Renogy Wanderer Li

The Renogy Wanderer-Li is a 30A PWM solar charge controller that integrates efficient PWM charging to increase battery life and improve system performance. Designed with a simple interface for ease of use, the controller uses multiple LED indicators to notify users of charge status and battery information.

LED Indicators & Battery Selection Button

Monitor system status and set your battery type

Layout

1. Select Button
2. Battery Type Indicator
3. Battery Indicator
4. PV Indicator
5. Temperature Sensor Port
6. PV Terminals
7. Battery Terminals
8. RS232 Port

Temperature Sensor Port

For optional temperature sensor

RS232 Port

For optional communication module

Product description

FlexMax80 FM80-150VDC Charge Controller FLEXmax MPPT Charge Controllers are the only choice when you demand a high performance, efficient and versatile charge controller for your advanced power system. The FLEXmax Charge Controllers are the revolution. Developed by OutBack Power, its features include support for a wide range of nominal battery voltages and the ability to step-down a higher voltage solar array to recharge a lower voltage battery bank. A built-in, backlit 80 character-display shows the current status and logged system performance data for the last 128 days at the touch of a button. The FLEXmax family of charge controllers is the latest advanced improvement in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power Systems. The ground-breaking FLEXmax MPPT software algorithm is both continuous and active, it increase your photovoltaic array power yield up to 30% compared to non-MPPT controllers. With the technology of active cooling and intelligent thermal management cooling, the FLEXmax charge controllers can operate at their full maximum current rating in ambient temperatures as high as 104F (40C) (Optional Remote Temp Sensor Recommended for optimal operation- Sold separately). . Features: Built-in 128 days of Data Logging Programmable Auxiliary Control Output. Fully OutBack Network Integration Capable (with use of the OutBack HUB - Sold separately). Programmable Battery Voltages from 12 VDC to 60 VDC. Advanced Continuous Maximum Power Point Tracking Increases PV Array Output by up to 30%. Specifications: Nominal Battery Voltages: 12, 24, 36, 48

• Programmable to Charge Battery Voltages from 12 VDC to 60 VDC.
• Advanced Continuous Maximum Power Point Tracking Increases PV Array Output by up to 30%.
• Backlit 80 character-display shows the current operational status.
• Input PV voltages up to 150VDC open circuit for charging battery banks from 12-60VDC.
• Gets more amp hours from your solar panels into your batteries everyday.

User questions & answers

Question:	hello, how many 300 watts panel I can put using series configuration with this flex max
Answer:	This depends on the battery bank nominal voltage... i.e. 12, 24, 48VDC battery bank and the voltage and rated current output of your solar modules. All specs and recommendations for current and voltage limits on The Flex Max series chargers are available at the manufacturer's website wwww.OutBackPower.com
Question:	Can I hookup a 2000 watt solar panel array to this voltage controller
Answer:	The Outback FM80 has a NEC recommended maximum array at STC nameplate wattages: 1000-watts for 12VDC systems, 2000-watts for 24VDC systems, 4000-watts for 48VDC systems. Absolute Maximum (coldest site conditions) array open circuit voltage input 150VDC / Startup and operating maximum 145VDC . Full specifications and user manuals can be downloaded at the manufacturer Outback Power site.
Question:	Does this product have a warranty ? How many years
Answer:	This product comes with the manufacturer Outback Power 5-Year warranty.
Question:	how many watts of solar panels can it handle charging a 12v battery bank
Answer:	The Outback FM80 has a NEC recommended maximum array at STC nameplate wattages: 1000-watts for 12VDC systems, 2000-watts for 24VDC systems, 4000-watts for 48VDC systems. Absolute Maximum (coldest site conditions) array open circuit voltage input 150VDC / Startup and operating maximum 145VDC . Full specifications and user manuals can be downloaded at the manufacturer Outback Power site.

• LCD Screen Display >> This solar panel charger controller with LCD to display all parameters, the LCD has rich contents, the users can intuitively know the working condition of the controller. The LCD display is with built-in energy-saving backlight LCD, display better, more clear, more beautiful, more modern and more power-efficient.
• Fully Automatic >> This solar panel regulator with output switch, intelligent control, easy to operate, to connect the controller and the battery by cables with the right polarity. The battery indicator light on the controller will be on if successfully connected, otherwise, to check and reconnect.
• Power-efficient >> Microcontroller digital accuracy, when it's charging, the arrow between the panel icon and the battery icon will flashe fastly, when the battery was a full charge, it will be slow flashed, will stop charging,the function of the controller is to protect the voltage overshoot and discharge. Available for DC lamp and phone charging. A key to open and close the load.
• Rated Discharge Current >> 20A; USB Output Voltage: 5V; Total USB Output Current: 3A; DC Output Voltage: 12V. To connect your load and the cables with the right polarity and then connect with the load output port of the controller. Pay special attention to + - polarity to avoid reversed connection, otherwise, your load may be damaged. (Kindly suggest to use standard 11-15 AWG wire to connect with terminals perfectly.)
• Protection Functions >> Overload and Short circuit protection, Lightning protection, Under-voltage protection, Over-charging protection, Reverse Polarity protection charge controllers for solar panels. Use PWM&WPC mode, improve system efficiency and prolong the life span of the battery.

User questions & answers

Question:	Can I hook up a 750 watt inverter to the Load terminals of the controller
Answer:	No you cannot. As previously stated, I’d hook the inverter straight to battery although you can hook a relay in series between the battery and inverter and use the controller load to power the coil of the relay. This will allow the controller to shut down the inverter in case of any problems. Use a relay rated for at least 70Amps for a 750 watt inverter.
Question:	Can you set this to charge the battery once it gets to a certain level
Answer:	It will charge the battery and taper off when the battery is fully charged. It won't charge a dead battery or work well if the battery is in a low charge state.
Question:	Can this controllers output voltage be set to 24 vdc? i need to series two twelve volt batteries and supply a system with 24 vdc
Answer:	The information on specs are unclear but it does work. I have two 12 volts in series on my boat in flat storage with no electrical around. I bought one 24V solar panel, connected to this controller and it works great. The serttings are automatic if you follow directions. Here is my summary for my fishing club: There’s math involved to determine solar panel size so hang in there. Each battery is 12 Volts rated at 90 amp hours (AH). Multiply volts times amps to get total watts. 12V X 90ah = 1080 watts each, times 2 batteries = 2160. That’s total watts from zero to full charge. Since you can’t run batteries to zero and expect them to work, only half of the power is usable. Therefore, my needs are half of the 2160 total = 1080 watts. I decided I wanted to get fully charged batteries after 2 days. There is good sunlight on my location an average of 6+ hours per day so I need a panel large enough to reach 1080 watts in 12 hours charging time. Watts divided by hours, 1080/12 gets me my panel size of 90. Solar panels and connections are subject to voltage loss due to dust, connections, shadows, etc. Figure 20%. I need 120 watts output in a 24-volt panel (match my battery voltage). I found the components below. A 24 volt, 150-watt panel, a controller (don’t want to overcharge) and special solar wiring and connectors all on Amazon.
Question:	Ok asking my question again. .... How many working amps? Didn't know children answered these too. Lol
Answer:	I think Dana is a little confused regarding the requirement for HEAVY gauge wires at 20 amps (as in "the wire would be too big for the controller connection screws"). 20 Amps at 12 volts is only 240 watts. (Meanwhile, 20 Amps at 110 volts is 2,200 watts, which WOULD require a heavy gauge wire.) You can easily attach a wire capable of handling 240 watts to this controller. I use this controller with three panels installed on the roof of my RV. (One 50-watt panel and two 160-watt panels, connected in parallel, for a total potential of 370 watts.) The controller works great, allowing for perpetual wilderness camping without running down my RV coach batteries over multiple days - even when using a heated Bi-Pap (CPAP) machine all night long using a 120v Inverter. I've seen this controller charge the batteries with 16.8 Amps at 13.7 volts (230.16 watts) with no issues or "hot wires". Dana debunks the controller for feeding 2.6 volts at 1 amp back into the solar panels. That's a whopping 2.6 watts, which is inconsequential next to two deep-cycle coach batteries connected in parallel. Besides, that's what blocking diodes are used for.

Product features

GHB Solar Charge Controller

The product can automatically manage the working of solar panel and battery in the solar system. It is easy to set up and operate.

Specifications:

Overload/Short Circuit Protection: 1.5 Times by Rated Current

DC Output Voltage: 12V

Total DC Output Current: 2A

Short Circuit Recovery Time: 10s

Open Circuit Voltage of Solar Panel: 40V

No Load Loss: 0.05W

Over Voltage Protection: 15V; x2/24V

Float Charge Voltage: 14V; x2/24V

Discharge Recovery Voltage: 12V; x2/24V

Over-Discharge Voltage: 10.5V; x2/24V

Working Temperature: -35~55°C

Environmental Protection and Energy Saving

No matter at home or on the road, the GHB solar charge controller operates fully automatically, easy to operate.

Safety Instructions:

1. Make sure your battery has enough voltage for the controllers to recognize the battery type (12V/24V) before installation.

2. The regulator is only suitable for lead-acid batteries: OPEN, AGM, GEL. (NOT suitable for lithium batteries, Ni-MH battery)

3. Only suitable for working with photovoltaic solar panels. (NOT for other DC or AC power source)

Easy to Operate

1. Connect the battery to the charge regulator - plus and minus.

2. Connect the solar panel to the regulator - plus and minus.

3. Connect the load to the charge regulator - plus and minus.

NOTE: The reverse order applies when deinstalling! An improper sequence order can damage the controller!

Dual USB Charging Output Inter

Dual USB output (1A, 2A), this solar charge controller can simultaneously charge or supply power to two mobile phones, tablet PCs and other devices that require 5V power.

Fully Automatically

Makes you use 100% Available Solar Power. (Note: The battery cable should be as short as possible to minimize loss.)

Provide Full Protection

• Over-load protection
• Short circuit protection
• Lightning protection
• Under-voltage protection
• Over-charging protection
• Reverse Polarity protection

Product description

A solar charger gathers energy from your solar panels, and stores it in your batteries. Using the latest, fastest technology, SmartSolar maximises this energy-harvest, driving it intelligently to achieve full charge in the shortest possible time. SmartSolar maintains battery health, extending its life. The SmartSolar charge controller will even recharge a severely depleted battery. It can operate with a battery voltage as low as 0 Volts, provided the cells are not permanently sulphated or otherwise damaged.

• SmartSolar MPPT 100-Volt 50 amp: A solar charger gathers energy from your solar panels, and stores it in your batteries, Using the latest, fastest technology, SmartSolar maximises this energy-harvest
• The SmartSolar charge controller will even recharge a severely depleted battery. It can operate with a battery voltage as low as 0 Volts, provided the cells are not permanently sulphated or otherwise damaged
• By constantly monitoring the voltage and current output of your solar (PV) panels, MPPT technology ensures that every drop of available power is rinsed out of your panels, and harvested for storage
• Anytime anywhere remotely control and monitor the extensive features of your SmartSolar MPPT charger with built-in Bluetooth by pairing it with your smartphone or other device via VictronConnect
• Incorrect installation can be hazardous, Please consult a licensed professional and follow all applicable electrical codes during installation

User questions & answers

Question:	Does this take care of the function of the victron batteryprotect? it seems so but just want to make sure. thanks
Answer:	your solar can have a VOC up to 100 volts and then it will drop it down to 12 or 24 volts to charge the battery bank.
Question:	Can I have much higher input (nominal voltage of 24v) into this unit and have the unit charge a 12v battery bank? 36v->unit->13.5v
Answer:	The single difference between them is that the SmartSolar MPPTs have Bluetooth built-in so that you can monitor and configure them through the VictronConnect smartphone app. The BlueSolar MPPTs do *not* have the Bluetooth built-in; you can use a VE.Direct to Bluetooth Dongle to achieve the same functionality, but the cost of a SmartSolar ends up a little less (typically) than a BlueSolar MPPT +a VE.Direct to Bluetooth Dongle, so it usually makes more sense to order the SmartSolar. If you're not planning on monitoring the MPPT or changing any of the settings, however, a BlueSolar will be just fine, as the actual circuitry is virtually identical. Regards, -Justin Mobile Power Pros / Bay Marine Supply
Question:	what is the difference between smart solar and blue solar
Answer:	The charger will compensate for temperature based on it's internal sensor, essentially gauging the local environment's temperature. An option Smart Battery Sense can be attached to the battery for true battery temperature. Those are new and in short supply, but should be fully available by the end of June, 2018.
Question:	Does this unit alternate voltage based on battery temperature
Answer:	No

Product description

"Specifications Rated Battery Current :40A Rated Load Current:20A Max. PV Input Short Current:50A Max. Battery Voltage :32V Max. Solar Input Voltage :100VDC Charge circuit voltage drop:≤ 0.26V Discharge circuit voltage drop : ≤ 0.15V Working Temperature :-35°C to +45°C Max. Terminal Size :8AWG Rated Load Current :10% to 90% NC Net Weight :4.41 lb. Overall Dimension :9.37 x 6.81 x 2.85in. "

• Automatically detect 12V or 24V DC system voltages Innovative MPPT technology with high tracking efficiency up to 99% and peak Conversion efficiency of 98%
• Die-cast aluminum design for heat dissipation and The capability of measuring the battery's temperature and remote monitoring Customizable charging voltages
• Charges over-discharged lithium-ion batteries Error code detection for easy self diagnoses
• Compatible with various Deep Cycle battery options: Sealed, Gel, Flooded, and Lithium Electronic protection: Overcharging, over-discharging, overload, and short circuit Reverse protection: Any combination of solar module and battery, without causing damage to any component 4-stage charging: Bulk, Boost, Float, and Equalization and LCD screen with programmable charging parameters
• RS232 port allows the Rover to communicate with the BT-1 Bluetooth module, which can pair with the Renogy DC Home smart phone app

User questions & answers

Question:	If a conect my panels and my batteries to 24 v what will be the voltage that I¨ll recibe in the in load terminals
Answer:	Let say solar panel produce 36Vdc And battery voltage is 27Vdc The load terminal is about 27Vdc
Question:	What version of the 20amp model is being sold here from amazon? per the manufacturer website, renogy bt, is optimized for rover charge controllers f
Answer:	This is last year's model and currently sold out here the Renogy website and eBay. New models coming. Rich solar still has them at $89.00 for the 20amp..but offers no bt module
Question:	Can I disconnect the battery while the solar collector is still connected
Answer:	No, I dont think that's a good idea since they say connect batteries first the solor panels. If you was to shut ur system down, the go in reverse. Panels discount then battery.
Question:	Is anyone having problems with hf / vhf radio interference (rfi
Answer:	On MPPT and PMI controllers of different brands, RFI particularly in the VHF & UHF bands can be extreme. The solar panels do act as large antennas transmitting the interference. Some fairly simple decoupling circuitry can help. Right at the PV input, i've used a large forward diode into a large, CPU-grade electrolytic along with common-mode chokes on wiring before the diode. On the controller outputs, a "Corcom" type pi-filter helps a lot, but components in series with the output must accept full output current without much voltage drop. This can get rid of about 99% of RFI without too much problem. I do use solar and wind turbines for power at my off-grid property and run amateur radio equipment from 70 cm to 160 meter bands.

Product features

Renogy Rover

20A/30A/40A MPPT Solar Charge Controller w/ LCD Display.

LCD Screen & Multiple LEDs

Displaying system operating information and error codes.

Die-cast Aluminum Design

For efficient heat dissipation.

RS232 Communication Port

Allows communication with optional BT-1 Bluetooth Module and usage of Renogy DC Home App.

Temperature Sensor

Wide Temperature Compensation Range up to 176 F, non-polarized wires are insulated and protected from harsh environments.

Product description

The Renogy Wanderer 10A solar charge controller integrates efficient PWM charging to increase battery life and improve system performance. Designed with a simple interface for ease of use the controller uses an LCD to notify users of battery information. This advanced charge controller is designed for off-grid solar applications and can be used with a 12V/24V battery or battery bank. The compact size of the controller makes installation a breeze. The controller comes equipped with fully comprehensive self-diagnostics and electronic protection functions to prevent damage from installation mistakes or system faults.

• Optimized for a 12V/24V system; Deep Cycle Sealed (AGM), Gel, Flooded and Lithium battery option ready.
• Smart 4-Stage PWM charging (Bulk, Boost, Float, and Equalization) increases battery life and improves system performance. Intelligent protection against reverse polarity, overcharging, short-circuit, and reverse current.
• Backlit LCD screen displays system operation, diverse load control, and error codes.
• Integrated 5V 2A USB ports to charge USB devices. Compact in size makes it easy to install virtually anywhere.
• Capable of charging over-discharged lithium batteries. Integrated RS232 port allows communication with BT-1 Bluetooth module and usage of Renogy DC Home smartphone app.
• Power Source Type: Solar-Powered
• Wanderer10A|30A Installation Notes: The default starting position of the Wanderer controller terminal hatches are closed (in the UP position) that could mistakenly look like an open wire hatch. Make sure to FIRST lower each terminal hatch by screwing the terminals counterclockwise (CCW) to expose the wire terminal hatch to the open position. THEN secure each cable by rotating the screws clockwise (CW) to the closed position.
• Simple Install: Fully open the hatch (CCW), insert the appropriate wires, and completely close the hatch (CW).

User questions & answers

Question:	Is there a way to adjust the float voltage on this unit
Answer:	No, the float voltage on mine is 13.8V no matter the battery type setting. There is a manual on the Renogy website that lists float at 13.2V when set for Flooded batteries. However that is not the case on my unit, which I bought in 2016.
Question:	Can anyone explain the middle led's lighting sequence? What are the possible states of display, blinking, on, what do they mean
Answer:	The middle LED's lighting sequence is as follows: Green ON when battery level is in the right range. Green slowly flashing when battery level is full. Yellow ON when battery level is low. Red ON when loads cut off. Hope this helps.
Question:	max number of 100w panels for this controller
Answer:	This will depend on 2 things: 1 - what is the amp rating of your controller. &. 2 - what is the nominal voltage output of the panels. A 30 amp controller can handle a maximum of 3.6 100 watt panels of 12 volts (100 watts / 12 volts = 8.33 amps, 30 amp controller / 8.33 amp panel = 3.6 panels per controller). Of course, you can't have .6 panels so the safest load would be 3 panels. Yes, math is VERY IMPORTANT when being safe with electronics.
Question:	The description says "These are Positive Ground Controllers." How do you ground a system on the positive side
Answer:	Please ignore this if you're not interested in a dissertation on grounding. First, THIS is a NEGATIVE "ground" controller, so that's GOOD. Why? "Ground" is a misleading term. I've designed stuff for NASA spacecraft that had connections called "ground". Whaaat? We're going to run an extension cord to the spacecraft, so we can keep it tied to a metal pipe stuck in the dirt? Nope. "Ground" is just what electronics folks usually call a COMMON POINT the circuitry is referenced to. It doesn't necessarily have anything to do with the ground we walk on. Electrical stuff works by having two sides, positive and negative, with a voltage difference between them, the "pressure" that makes current flow. Electrical power folks tie one side to the dirt your house sits on, for safety. Your house has water pipes and stuff that's pretty well connected to the dirt. If you grab a water pipe and the 110V ground at the same time there's no voltage difference, so current doesn't flow through you and hurt you. 110V is 10x higher than a solar panel voltage so it's a lot more dangerous. Tying one side to the dirt was a very good idea. Long, long ago, and far, far away, electrical power folks chose the negative side to connect to the dirt, and most stuff made since has pretty much matched that. Then some folks decided to make "positive ground" devices, because for their designs it was easier and cheaper. Some of us think they should have been spanked. It caused all this "positive ground" and "negative ground" malarkey. On to solar power systems. Think of it like this: A controller has electronically controlled switches in it. One switch connects the solar panel to the battery to charge it and disconnects when the battery is full. Another switch connects the load to the battery when you want the load turned on. In a "negative ground" system, the terminals of the panel, battery and load called "minus" or "negative" are all tied together, and the controller switches the positive side connections. Since many loads are connected together on the minus side to ground (dirt) this is a GOOD THING. In a "positive ground" system it's the opposite. The positive side of everything is tied together, and the controller switches the negative side connections. Imagine this: If you connect the battery negative terminal and the load negative terminal both to ground (shorted together) and the controller switch is between them, what happens when the switch opens? That's right, NOTHING. The switch is shorted out by your ground connections so it can't disconnect the load. So that's what's wrong with a positive ground controller. Everyone is used to tying negative together and to ground and they do that and it screws up the controller. But a positive ground controller can be used as long as you don't connect the battery and panel to *anything* except the controller. For example, your van's battery negative is connected to the chassis of your van, and so are the negative sides of all the lights and devices in your van. JUST DON'T TIE THE SOLAR PANEL OR SOLAR BATTERY NEGATIVES TO YOUR VAN CHASSIS TOO. You CAN tie the controller's load output negative to your van chassis, as long as you don't connect any. other. point. in the solar charging system to chassis too. With a "negative ground" controller you don't have to worry about any of this malarkey. You can tie the battery, panel, load negatives all to chassis without any problems. This is why NEGATIVE GROUND CONTROLLERS ARE BETTER. Sorry for the lengthy explanation. I hope folks can follow this and it helps them understand this "ground" stuff.

Product features

Renogy Wanderer

The Renogy Wanderer 10A solar charge controller integrates efficient PWM charging to increase battery life and improve system performance. Designed with a simple interface for ease of use the controller uses an LCD to notify users of battery information. This advanced charge controller is designed for off-grid solar applications and can be used with a 12V/24V battery or battery bank. The compact size of the controller makes installation a breeze.

Specification

Layout

1. LCD Screen
2. Select Button
3. Enter Button
4. USB Ports
5. Load Terminal
6. Battery Terminal
7. PV Terminal
8. RS232 Communication Port

RS232 Communication Port

Integrated RS232 port allows communication with BT-1 Bluetooth module (Not Included) and usage of Renogy DC Home App.

Compatible Battery Types

1. Sealed
2. Gel
3. Flooded
4. Lithium

USB Port

5V 2A USB Ports

Product description

Morningstar’s TriStar MPPT solar controller with TrakStar Technology is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic (PV) systems up to 3kW. The controller provides the industry’s highest peak efficiency of 99% and significantly less power loss compared to other MPPT controllers.



The TriStar MPPT features a smart tracking algorithm that maximizes the energy harvest from the PV by rapidly finding the solar array peak power point with extremely fast sweeping of the entire I-V curve. This product is the first PV controller to include on-board Ethernet for a fully web-enabled interface and includes up to 200 days of data logging.

• Maximizes Energy Harvest Our TrakStar MPPT Technology features: Better peak power point tracking than other MPPT controllers Very fast sweeping of the entire I-V curve Recognition of multiple power points during shading or mixed PV arrays Excellent performance at sunrise and low solar insolation levels
• Extremely High Reliability Robust thermal design and no cooling fans Parallel circuit design provides less stress and longer life for electronic components No mechanical relays Extensive electronic protections including PV short circuit protection Epoxy encapsulated inductors and conformally coated printed circuit boards
• Very High Efficiency Peak efficiency of 99% Proprietary tracking algorithm minimizes power losses Low self-consumption Continuous operation at full power to 45°C without need to de-rate Selected electronic devices with higher ratings to minimize losses from heating
• Extensive Networking and Communications Capabilities Enables system monitoring, data logging and adjustability. Uses open standard MODBUS protocol and Morningstar’s MS View software. Meterbus: communications between compatible Morningstar products Serial RS-232: connection to a personal computer EIA-485: communications between multiple devices on a bus Ethernet: fully web-enabled interface to a local network or internet; view from a web browser or send email/text messages
• Metering and Data Logging Optional TriStar meter and remote meter provides detailed operating data, alarms and faults Three LED’s display system status Up to 200 days of data logging via meters or communications ports

User questions & answers

Question:	Can this be used to charge lipo battery bank . I need to set the bulk and float at 14 volts
Answer:	Morningstar controllers are manufactured in a fully automated world-class ISO 9001 facility in Taiwan.
Question:	Can this be program battery type without a meter/screen
Answer:	I am using a 100watt panel made by Global ICP. Is your panel 12volt output? It must be for this charger. The actual output will be higher but not over 24, which is the next stage up. My panel puts out 19.5 volts directly. If you have a muilti meter, check the output voltage if you do not know.Best to look around and get a book on solar. Plenty available. Learning first will help prevent mishaps or damage to your expensive equipment.
Question:	Will this control work with reliable 4000w solar power inverter 12vdc to 120v ac off grid pure sine wave inverter with 5-160 watt panels (800w total
Answer:	Well its a 10 amp controller at 12 volts so if you use ohms law, Volts Times Amps, says about 120 Watts. I have got 2 60 watt panels connected to mine and it works fine.
Question:	What is the difference beween this controller and the $541 morningstar ts-mppt
Answer:	I'm afraid several have misunderstood the question. Without a low-voltage disconnect, the load connections on the controller are provided merely for connection convenience. It should be the same as connecting your load directly to the battery. There is no low-voltage protection either way. Unless you purchase the unit that contains the LVD