13 best diy trickle chargers

A DIY trickle charger, also known as a battery maintainer, is a device used in automotive applications to maintain the charge of a vehicle's battery over an extended period of inactivity. These chargers are designed to deliver a low, continuous electrical charge to the battery to keep it in optimal condition. Here's what you need to know about DIY trickle chargers:

  1. Purpose: Trickle chargers are primarily used to prevent the discharge of a vehicle's battery when it is not in use for an extended period. This can occur in situations such as storing a classic car, motorcycle, boat, RV, or lawnmower during the off-season.

  2. Low Charging Rate: Unlike traditional battery chargers, which provide a high current to quickly recharge a battery, trickle chargers deliver a very low charging rate. This slow and steady flow of electricity helps prevent overcharging and damage to the battery.

  3. Voltage Regulation: Trickle chargers typically have built-in voltage regulation to ensure that the battery is maintained at an appropriate voltage level.This helps prolong the life of the battery.

  4. Automotive and Deep-Cycle Batteries: Trickle chargers are compatible with various types of batteries, including standard automotive batteries and deep-cycle batteries commonly found in boats and RVs.

  5. Automatic Operation: Many modern trickle chargers are designed to be "smart" or "automatic." They can monitor the battery's charge level and adjust the charging rate accordingly. When the battery is fully charged, these chargers may switch to a maintenance or float mode, where they provide just enough charge to keep the battery at the optimal level without overcharging.

  6. Connection: Trickle chargers are connected to the battery through its terminals, usually with alligator clips or ring terminals. The charger is then plugged into a standard electrical outlet.

  7. Safety: When using a DIY trickle charger, it's essential to follow the manufacturer's instructions and safety precautions. Ensure that the charger is connected correctly, and the battery and charger are in good condition. Avoid charging a damaged or frozen battery.

  8. Benefits: The main benefit of using a trickle charger is that it helps extend the lifespan of the battery by preventing it from becoming deeply discharged, which can lead to sulfation and reduced battery capacity. It's a cost-effective way to maintain batteries and avoid the need for premature replacements.

In summary, DIY trickle chargers are valuable tools for maintaining the charge of vehicle batteries during periods of inactivity. They are designed to provide a low, continuous charge to keep the battery in good condition and extend its lifespan. Proper use and safety precautions should always be observed when using these devices.

Below you can find our editor's choice of the best diy trickle chargers on the market
  

Small Flexible Solar-Panels Charger Flex Thin-Film-Roll-up-Bendable-Amorphous-Solar-Panel-Cell-DIY For Science Lot Projects Wireless Charger Thin Film Solar Pannel Battery Trickle Charger (white 2)

Based on 1 reviews Check latest price
  • UNBREAKABLE: Laminated With Upgraded Environmentally Friendly Materials Tpu, Waterproof, Fire-Resistant,Largely Eliminates Issues of Damage From Microcracks as a Result of Foot Traffic or Vibration, Earthquake And Hailstone Resistant
  • SHADE RESISTANT:Outperforms other solar pan in partially shady conditions, Partial occlusion and weak light can still generate electricity
  • TECHNOLOGY:The latest production process uses 127um stainless steel substrate and three-junction amorphous silicon thin film battery to achieve high conversion efficiency.
  • UNBREAKABLE-THIN: flexible polymeric construction, it is truly flexible to be bent, sewed or treated in the surface to match any kind of surface line. A good choice for DIY enthusiasts in selecting an alternative power source.
  • ROBUST HANDLING:for seamless integration into your production process,can be applied in many electronics markets including wireless sensor networks (smart buildings, smart cities and smart homes)medical and sports devices, security sensors and cameras, agriculture monitors, beacons and electronic signs, computer peripherals, and wearable electronics (bracelets, watches, armbands, etc.).Exempt from the trouble of changing the battery

Product features

Benefits of Solar For IoT Systems

  • Extends the Battery Life of Your Device.
  • Reduces Size or Eliminates Batteries Altogether.
  • Promotes Sustainable and Electronics

Specification

  • Operating Voltage: 6V
  • Operating Current: 120mAOpen circuit voltage: 4.5V
  • Short circuit current: 110mA
  • Power: 0.5W

  • Use of the environment: -40 ℃ ~ 80 ℃
  • Performance: corrosion, moisture
  • Size: Length 170mm/6.69”(with edge 190mm/7.48”) X Width 43mm/1.69” (with edge 50mm/1.97”) X thickness0.5mm/0.02”.
  • Weight: 13 g ± 2 grams.

SOLPERK Solar Panel Kit 20W 12V, Solar Battery Trickle Charger Maintainer + Upgrade Waterproof Controller + Adjustable Mount Bracket for Boat Car RV Motorcycle Marine Automotive

Based on 101 reviews Check latest price
  • ☞【Outstanding Quality】20W solar panel adopts well-built monocrystalline cells with high conversion efficiency up to 24%. Using Tempered glass, weatherproof film and plus aluminum frame for excellent extended outdoor use, which can withstand storms for more than 10 years.
  • ☞【Waterproof controller】 Improved waterproof case eliminates the problem of controller water failure. Advanced PWM algorithm can fully protect the battery: under/over voltage, output overload, short circuit and anti-back connect protections. It can greatly enhances 20% charging efficiency with no additional self power consumption.
  • ☞【Easy Installation】Equipped with an adjustable mounting bracket, which can rotate 360 degrees to get the best sunlight reception. Comes with mounting accessories to install solar panel on the ground, wall, roof, etc. without any extra maintenance.
  • ☞【Wide Application】 It can be used as solar battery charger and maintainer for different 12V DC batteries, such as Wet, Gel, MF, EFB and AGM. A variety of scenarios for RV, car, boat, marine, camper,lawn mower, motorcycle, jet ski, water pump, shed, gate opener, etc.
  • ☞【What You Get】 1 solar panel + 1 solar charger regulator controller + 2 alligator clips + 1 SAE extension cable + 1 set of mounting pieces. Extended 12 months warranty and our 7*24h technical service support.

User questions & answers

Question: Can this solar panel be connected in parallel with other brand of solar panel
Answer: I have a Renogy 100W solar panel Of course, I connected it in parallel with Renogy's solar panels on my roof, and it has worked very well so far! Just make sure that the solar panels are all 12V. I am considering buying 2 more packs to install on the roof of my RV.
Question: Can it be used to charge devices (phones, laptop...) without having the battery hooked up
Answer: Hello, this solar panel cannot directly charge electronic devices such as phones, laptops. It is suitable for charging batteries.
Question: Do they come with cables to be connected to the charge contoller
Answer: Comes with 1 pig tale . Comes with cable that hooks to battery look like small jumper cables. Has wire that comes off panel and plugs into controler. Must follow instructions correctly or will not work
Question: Is there a setup that can charge 5 dirt bike/quads
Answer: Do you mean the setting of charging 5 batteries at the same time? This is to charge separate batteries, and you cannot charge 5 batteries at the same time

Product features

20W Solar Panel

SOLPERK 20W 12V Solar Panel strictly adopted brand-known materials and aim to bring you an excellent outdoor solar charging experience. The sturdy frame and tempered glass can resist various extreme weather like rain, snow and hail. High-end monocrystalline cells are used to trickle charge the battery continuously and keep it in top performance.

Just rest assured to hand over your battery to our solar panel, let it rejuvenate your battery once again!

High Efficient Cells

Topping monocrystalline solar cells with high transmission delivered high efficiency for modules. The conversion rate can reach up to 24% under Standard Test Condition.

Adjustable Bracket

Equip with a flexible bracket, which the angle can be adjusted arbitrarily to obtain maximum sunlight. The bracket is pretty easy to install on the ground, wall and roof.

Waterproof Structure

Great waterproof performance. Tempered glass brings excellent waterproof protection for the panel. Anodized aluminum frame of good insulation and corrosion resistance let you leave it outdoors for decades without worries.

Specification

Maximum Power: 20W

Maximum Power Current: 1.11A

Maximum Power Voltage:18V

Operating Voltage: 12 V

Open Circuit Voltage: 21.6V

Short Circuit Current: 1.19A

Weight: 3lb

Dimensions: 14.6*13.2*0.7 inch

All technical data at Standard Test Condition.

STC:Irradiance 1000W/m².

Cell Temperature 77℉.

Air Mass AM=1.5

ECO-WORTHY 12 Volt 10 Watt Solar Car Battery Charger & Maintainer, Solar Panel Trickle Charger, Portable Power Backup Kit with Alligator Clip Adapter for Car, Boat, Automotive, Motorcycle, RV

Based on 3 reviews Check latest price
  • 10W 12V Solar Car Battery Charger is the perfect trickle charger/maintainer for 12V batteries of cars, motorcycles, boats, snowmobiles, tractors etc
  • Please note that the protective plastic film on the panel surface is supposed to peel off. The cigarette plug option only works if it has constant power when the key is out of the ignition. When you start the car, please remove the solar panel from the car battery
  • Charging 12V rechargeable batteries in emergency, suitable for vehicles in outdoor work or travel or camping training. Easy to install and completely maintenance-free
  • Comes with the cigarette lighter adapter, 1 pair of battery clips and 4pcs PVC suckers. Unique design-high quality clips to prevent short circuit
  • Environmental protection and energy saving, built-in blocking diode to prevent reverse discharge, not only maintains the battery lifetime but also extends its usage life

User questions & answers

Question: Will this charge two deep cycle battles at the same time
Answer: I don't know where the 2 other comments came up with one amp output. Minimum is 5.1 amps with mttp controller. Still insufficient to fully charge deep cycle flooded battery with much load.
Question: Are there any directions with this item? also, do i peel off the plastic coating? it is all bubbly like i should, but i am not sure
Answer: No, there are not really any directions but it’s pretty simple to use. Yes, peel off the protective plastic layer. I know it looks like it is attached underneath the fabric but it comes pretty easily.
Question: how long will it take with good sunlight to recharge a dead 12v automotive battery
Answer: The right answer is: It won't. 5W is the absolute best these cheap panels will output, in reality you will only get about 1W during daylight hours, mostly due to thermal derating. The charge will be so minimal, that battery leakage at night will eliminate any small charge you get during the day.
Question: Does this have a blocking diode
Answer: I don't believe this panel has a blocking diode built in as CX wrote in 2018. Can seller confirm whether there is a blocking diode built into the panel? Thanks

Product features

Solar Car Battery Trickle Charger Package Includes:

  • 1* 12V 10W Solar trickle charger with 4.75 ft cord
  • 1 * Alligator clip adapter with 22.8 inch cord
  • 1 * Cigarette lighter adapter with 22.8 inch cord
  • 4 * PVC Suckers

ECO-WORTHY 12 Volts 10 Watts Portable Solar Panel Battery Maintainer

Rated Power: 10W

Voc: 22.41V

Vop: 17.9V

Short circuit current (Isc): 0.61A

Working current (Iop): 0.56A

Output Tolerance: ±3%

Temperature range: -40℃ ~ +80℃

Dimensions:14.37*9.25in (365*235mm)

Weight: 1.46 pounds

Plug&Play SAE connector

Solar Panel SAE connector is plug and play, no need to recognize positive or negative, simple and easy to use.

Note:As this is 10w solar panel main function is maintain battery, not for full charging your battery

Cigarette Lighter

Plug the cigarette lighter to socket when use it to charge or maintain vehicle's battery, really plug and play.

Note:In some makes of vehicles, the cigarette lighter may not operate when the ignition is turned off. If so, you can connect directly to the battery using alligator battery clamps and cables.

Alligator Clip Adapter

Use the red and black battery clamps to trickle charge and maintain 12 V battery, make sure they connect correctly.

Built-in blocking diode

Built-in blocking diode to prevent reverse discharge.

this solar power panel on your windshield with the suction cups or fix it on the sun visor with the back strips.

SUNER POWER 12V Waterproof Solar Battery Trickle Charger & Maintainer - 30 Watts Solar Panel Built-in Intelligent MPPT Solar Charge Controller + Adjustable Mount Bracket + SAE Connection Cable Kits

Based on 94 reviews Check latest price
  • [Intelligent Charge & Maintain] Built-in intelligent MPPT charge controller, generates at least 10%-20% more power than traditional controller. Smart 3-stages charging algorithm is improved to better charge and maintain 12v battery in all seasons.
  • [Full Protections] Prevent battery from over charge, over voltage, discharge and short circuit, reversed polarity protection, waterproof and sparkproof, battery is fully protected.
  • [Adjustable Mount Bracket] Exclusively engineered with alloy ball to adjust the angle of solar panel, absorb as much as sunshine and generate more power. The mount bracket is easy to DIY, could be applied to mount on ground or vertical wall.
  • [Visual Monitor] The colorful LED indicator helps to visually monitor the working status, better understand battery conditions-flash in green, output normal; flash in Red, Charging normal; solid green, battery is full; solid red, errors; indicator off, no output.
  • [Free Maintenance] Durable aluminium frame and tempered glass, well built for years. Come with 3 piece SAE cable kits, plug and play, easy to use. No electricity cost, free maintenance for outdoor use. Backed by extended 12 months warranty and lifetime technical supports.

User questions & answers

Question: Is there a converter to go with the sunar power solar panel
Answer: Panel goes to battery. Load also goes on the battery I'd it's a 12 volt appliance. If using 120v you need a inverter
Question: where do you connect the load? panel wires connect to battery and the load connects to___________
Answer: Yes
Question: can 2 separate panel kits be connectred to 1 battery
Answer: This is the equivalent of a trickle charger for maintaining a 12v battery.
Question: Will this charge 12v battery in a generac generator
Answer: The wiper blades have outlasted any other pair of wiper blades I have bought and used. They do their job as advertised or better. The cost from Amazon was lower than any of the ones on the shelves at local auto parts store. I would/will repeat the purchase if these wiper blades remain available.

Product features

Renewable Battery Charger & Maintainer

Batteries naturally drain power and go flat, may never regain full power, the solar charger generates electrical current to trickle keep battery topped off as long as there is sunlight avaible.

Three-stages Charging

Smart three-stage charging algorithm is improved to better charge and maintain battery.

MPPT Charge Controller

Built-in super smart MPPT charge controller, generates at least 20% -30% power than traditional PWM technology.

IP65 Waterproof

Upgraded waterproof design to stand rain and snow in outdoor, just hook it there, free maintenance.

Full Protections

Over charge protection, over discharge protection, reversed polarity protection, short circuit protection, full protect battery in all seasons.

Adjustable Anagle

The adjustable joint ball make it possible to adjust the angle of solar panel to get as much as sunshine, increase more power.

Plug & Play

Equipped with 3-piece connection cable kits, battery clamp, cigarette lighter and bare wire. Each of them is equipped with SAE connector, plug and play, easy & simply to connect and disconnect, no need to recognize positive or negative.

Visual LED Indicator

The led indicator helps to clearly understand the working statues:

  • Blink Green: Sunshine is effective(Not active yet)
  • Blink Red: Working to charge battery(Activated)
  • Solid Green: Battery is fully charged
  • Solid Red: Error-Reversed polarity

Solar Cells

The solar charger was made of A grade solar cells with hight efficiency, works better in sunshine with more efficiency.

6V Waterproof Solar Battery Trickle Charger & Maintainer - 5 Watts Solar Panel Built-in Intelligent MPPT Solar Charge Controller + Adjustable Mount Bracket + SAE Cable Kits

Based on 8 reviews Check latest price
  • [Intelligent Charge & Maintain] Built-in intelligent MPPT charge controller, generates at least 10%-20% more power than traditional controller. Smart 3-stages charging algorithm is improved to better charge and maintain 6v battery in all seasons.
  • [Full Protections] Prevent battery from over charge, over voltage, discharge and short circuit, reversed polarity protection, waterproof and sparkproof, battery is fully protected.
  • [Adjustable Mount Bracket] Exclusively engineered with alloy ball to adjust the angle of solar panel, absorb as much as sunshine and generate more power. The mount bracket is easy to DIY, could be applied to mount on ground or vertical wall.
  • [Visual Monitor] The colorful LED indicator helps to visually monitor the working status, better understand battery conditions-flash in green, output normal; flash in Red, Charging normal; solid green, battery is full; solid red, errors; indicator off, no output.
  • [Free Maintenance] Durable aluminium frame and tempered glass, well built for years. Come with 3 piece SAE cable kits, plug and play, easy to use. No electricity cost, free maintenance for outdoor use. Backed by extended 12 months warranty and lifetime technical supports.

User questions & answers

Question: Whay connects to the battery terminals
Answer: The max charge current of the 6W is 1A, so if the solar charger is working perfectly, it will take 6ah/1a=6hours to fully charge the battery from 0 to 100%.
Question: Assuming good sunlight, how long would it take this panel to recharge a fully discharged 6v 12ah agm battery
Answer: It depends. Why amp size are your batteries? Do you plan on leaving the cart and chargers sitting outside in the sunlight? For how long? Will you be using the chargers while driving around the course or just for at home charging?
Question: How many will I need to keep 8 batteries in my golf cart charged
Answer: Yes
Question: Can I charge a 6v tractor battery
Answer: No the solar panel output is 18 volt DC and there is no converter for DC to AC

SUNER POWER 12V Waterproof Solar Battery Trickle Charger & Maintainer - 50 Watts Solar Panel Built-in Intelligent MPPT Solar Charge Controller + Adjustable Mount Bracket + SAE Connection Cable Kits

Based on 130 reviews Check latest price
  • [Intelligent Charge & Maintain] Built-in intelligent MPPT charge controller, generates at least 10%-20% more power than traditional controller. Smart 3-stages charging algorithm is improved to better charge and maintain 12v battery in all seasons.
  • [Full Protections] Prevent battery from over charge, over voltage, discharge and short circuit, reversed polarity protection, waterproof and sparkproof, battery is fully protected.
  • [Adjustable Mount Bracket] Exclusively engineered with alloy ball to adjust the angle of solar panel, absorb as much as sunshine and generate more power. The mount bracket is easy to DIY, could be applied to mount on ground or vertical wall.
  • [Visual Monitor] The colorful LED indicator helps to visually monitor the working status, better understand battery conditions-flash in green, output normal; flash in Red, Charging normal; solid green, battery is full; solid red, errors; indicator off, no output.
  • [Free Maintenance] Durable aluminium frame and tempered glass, well built for years. Come with 3 piece SAE cable kits, plug and play, easy to use. No electricity cost, free maintenance for outdoor use. Backed by extended 12 months warranty and lifetime technical supports.

User questions & answers

Question: Can it be used on a serta mattress to keep it inflated over night? (self inflatable mattress
Answer: what is your mattresses voltage? This only produces a 12 volt DC trickle charge during sun light hours.
Question: Does this also work on cloudy days
Answer: Cloudy yes but not days on end. Probably gets 50% charge on cloudy days.
Question: How many amps should this be putting out when read on a multimeter
Answer: You can use a voltmeter to tell you the volts but not amps. Attach your Clips to your battery.. Take the red clip off the battery and attach it to the red volt meter lead. Take the black volt meter lead and attach to the positive pole on battery.......this gives you the voltage that the panel is putting out.
Question: how would you wire this to run an electric fence charger? (it only has two wires for battery
Answer: you need a battery to keep the 12 volts system charged

Product features

Renewable Battery Charger & Maintainer

Batteries naturally drain power and go flat, may never regain full power, the solar charger generates electrical current to trickle keep battery topped off as long as there is sunlight avaible.

Three-stages Charging

Smart three-stage charging algorithm is improved to better charge and maintain battery.

MPPT Charge Controller

Built-in super smart MPPT charge controller, generates at least 20% -30% power than traditional PWM technology.

IP65 Waterproof

Upgraded waterproof design to stand rain and snow in outdoor, just hook it there, free maintenance.

Full Protections

Over charge protection, over discharge protection, reversed polarity protection, short circuit protection, full protect battery in all seasons.

Adjustable Anagle

The adjustable joint ball make it possible to adjust the angle of solar panel to get as much as sunshine, increase more power.

Plug & Play

Equipped with 3-piece connection cable kits, battery clamp, cigarette lighter and bare wire. Each of them is equipped with SAE connector, plug and play, easy & simply to connect and disconnect, no need to recognize positive or negative.

Visual LED Indicator

The led indicator helps to clearly understand the working statues:

  • Blink Green: Sunshine is effective(Not active yet)
  • Blink Red: Working to charge battery(Activated)
  • Solid Green: Battery is fully charged
  • Solid Red: Error-Reversed polarity

Solar Cells

The solar charger was made of A grade solar cells with hight efficiency, works better in sunshine with more efficiency.

jiang Thin Film Solar Panel Small Flexible Solar Panel Power Cells Emergency Solar Battery Charger 1W/1.5V/670MA Flexible Small Solar Chargers for Electronic Devices (Red)

Based on 4 reviews Check latest price
  • ULTRA THIN:Compact size (100mm/3.94"x198.43mm/7.81"x0.77mm/0.03") ,weight:27g/0.06ib ,waterproof solar charger battery
  • WHY CHOOSE THIN FILM SOLAR PANEL SYSTEM :This feature can give more space for these panels could be used in applications where conventional solar panels simply wouldn't be appropriate​
  • KEY BENEFITS:Self-cleaning: Be free from maintenance, rainfall cleans the dirt due to its nonstick surface.Tear resistant, corrosion resistant and fire resistance.Free maintainer,Suitable for: deer feeders camera wildgame innovations trail cameras kits
  • DESIGN:Featuring with honey - comb structure which enhance 10% natural lighting, high transparency(95%) to ultra-violet light.installed at rooftop tent charge homes lighter led
  • Apply:use your imagination to create a variety of products, weld to 12v ,solar charging clothes,usb solar panel portable phone charger,power bank portable charger for outdoor wireless sports headphones,UAV power supply,boat Charger, motorcycle trickle charger ,shed kit ,car cigarette lighter plug battery charger waterproof outdoor camera charger

Product features

for science fair project

  1. Safety: polymer lamination, not easy to break (no glass material);
  2. No harmful substances: no harmful substances such as fluorine
  3. Portable: Durable, lightweight, impact resistant, easy to carry and use.
  4. Superior performance under indoor and low-light compared to Silicon PV
  5. Printed PV cell with scalable, low cost process
  6. Cell size from 2 cm2 to >200 cm2 designed to the size of the customer’s wireless product
  7. Range of colors and transparencies to match a product’s look and function
  8. Meets electronics reliability specifications – lasts lifetime of wireless electronics products

Why Choose Thin film solar cells?

  1. The first layer of the solar panel is made of ETFE (Ethylene Tetrafluoroethylene).
  2. this material has a very high sunlight absorption to reflection ratio.
  3. Flexible solar modules are produced utilizing a thin stainless steel substrate and flexible lamination polymers which equate to a thickness of ~1.5 mm.
  4. Packaging materials durable, high transmittance ETFE film, waterproof, UV-resistant fabric This allows our modules to be used for a wide variety of applications.

Key Benefits:

  • Operating Voltage: 1.5V/Open circuit voltage: 2V
  • Short circuit current: 750mA /Operating Current: 670mA
  • Power: 1W
  • Use of the environment: -40 ℃ ~ 80 ℃
  • Performance: corrosion, moisture
  • Size: Length 170mm/6.70”(plus blackedges 190mm/7.50”) X Width 80mm/3.1” (plus black edges 90mm/3.50”) X thickness0.5mm/0.02”.
  • Weight: 10 g ± 2 grams.

Packaging Material: durable, hightransmittance ETFE film Adhesive: weather, high transmittancefast curing EVA film

Battery Type: Flexible triple junctionamorphous silicon thin film solar cells

Note: The above refers to the electricalperformance parameters measured under standard test conditions, namely: lightintensity 1000W / ㎡, spectrumAM1.5, cell temperature 25 ℃.

XINPUGUANG 10W 18V Solar Panel Trickle Charger Battery Charger & Maintainer, Portable Power Backup Kit with Battery Cable USB DC for Car, Boat, Automotive, Motorcycle, Mobile Phone(18V)

Based on 49 reviews Check latest price
  • ★【Battery Maintenance Charger】Solar cable with alligator clips. The alligator clips connects the battery and charges the battery, extending the life of the battery.
  • ★【Safe and Reliable Quality】 Built-in blocking diode, prevent your batteries from discharging backwards through your solar panels at night when charger's voltage is lower.
  • ★【Semi-Flexible】The plastic back sheet can be curved to a maximum 30 degree arc to use a wider range of applications.
  • ★【DC Output】It can be transferred to alligator clips, USB, cigarette lighter, etc.
  • ★【High Conversion Rate】The solar cell efficiency of 19.6%, and output voltage of 18V with 10W of energy, perfect for maintaining batteries of automobile, motorcycle, tractors or even boats.

User questions & answers

Question: What are the size dimensions of this panel
Answer: Hi, this will only run 12v you need to wire to a battery if you need 24v/48V then you would need a inverter,hope this help you.
Question: Do I need buy a separate inverter with this kit
Answer: Solar panels are for outdoor use and are designed to be waterproof
Question: Is this product waterproof, will it be damaged by rain
Answer: Yes, MC4 cable is needed to connect the panel to the battery.
Question: Do I need an extra mc4 pair to connect the panel to the battery
Answer: It comes with 3 different cable adapters, battery clamps, battery ring and bare ends.

Product features

Package Include:

1pcs 18v/10w Flexible solar panel

1pcs DC with Alligator clip cable

1pcs DC with Crocodile clip

1pcs DC with USB

SUNER POWER 100W12 Volts Mono Crystalline Solar Panel - Off Grid 100W 12V Compact Solar Module for RV, Marine, Boat, Roof, etc.

Based on 28 reviews Check latest price

Product description

100w solar panel

  • [ Versatile Usage ] High efficient solar module provides sustainable power as long as there is sunshine. Bypass diodes minimize power drop caused by shade and ensure excellent performance in low light days. Perfect for 12v battery charging or multiple solar panel can be wired for 24 volt battery as well.
  • [ Durable & Strong ] Advanced encapsulated material enhances solar cell performance and achieves extended lifetime. And the tempered solar glass and corrosion-resistant aluminum frame make it strong and durable, well built for decades.
  • [ IP65 Waterproof ] IP65 rated waterproof design provides complete protections against rain, dust, snow. Withstand 2400Pa high wind loads and 5400Pa snow loads.
  • [ Easy Installation ] Pre-drillled holes on frame of the panels for easy mounting and securing. Compatible with universal Z-brackets and SUNER POWER adjustable mount brackets, check ASIN: B07QKR2NC5
  • [ Support & Warranty ] 25-year power output warranty and 5-year material and workmanship warranty; Lifetime technical supports back your side.

User questions & answers

Question: how many mille amps
Answer: This mounting bracket is very well made and I have no doubt that it will withstand the stresses you have described.
Question: Is this just one or two panels
Answer: You can contact us (Gamil name:Bougerv) to get the instructions. Or download directly from "Product information" on the product page.
Question: Can this charge lithium batteries
Answer: Best way to store these FLAT would be to remove ONE of the bolts holding the support leg and either bolt all three pieces together on one end (remove bolt on other) or remove support bar entirely. I suggest the first as that way all the hardware is kept together. These supports are designed more for adjustment to sun angle, not as simple adjustment to FLAT fortravel. Can be done, just two more steps...Bolts are hand knobs so no real hardware for installation / adjustment (however may want wrench handy in case wing nut turns.
Question: Can you add the cable for charging through the 12v plug in the car (cigarette lighter) to this panel if that plug is active when car is off
Answer: Very sturdy. Had mine up on RV roof during high winds in Joshua tree National park. It never moved. Please note that my unit is kept free standing so I can move it around. Very good construction.

SUNER POWER Waterproof 12V Solar Battery Charger & Maintainer Pro - Built-in Intelligent MPPT Charge Controller - 20W Solar Panel Trickle Charging Kit for Car, Marine, Motorcycle, RV, etc

Based on 405 reviews Check latest price
  • [Charge Anywhere] Transfer sunshine into electricity, charge and maintain your 12 volt battery in all seasons. The most advanced MPPT(Maximum Power Point Tracking) chip intelligently manage charging and fully protect battery. US PATENT PENDING!
  • [Intelligent Charge & Maintain] Built-in intelligent MPPT charge controller, generates at least 10%-20% more power than traditional controller. Smart 3-stages charging algorithm is improved to better charge and maintain battery in all seasons.
  • [Full Protections] Prevent battery from over charge, over voltage, discharge and short circuit, reversed polarity protection, waterproof and sparkproof, battery is fully protected.
  • [Visual Monitor] The LED indicator helps to visually monitor the working status, better understand battery conditions- Flash in Green, output normal; Flash in Red, Charging normal; Solid Green, Battery is full; Solid Red, Error.
  • [Free Maintenance] Tempered glass and strong ABS frame, well built for years. Come with 3-piece SAE cable kits, plug and play, easy to use. No electricity cost, free maintenance for outdoor usage. Backed by extended 12 months warranty + lifetime technical supports.

User questions & answers

Question: out of box dimensions
Answer: 20.15" L x 13.78" W x 0.67" H
Question: how long does a 12 v battery take to charge in perfect sun
Answer: It depenses on your battery capacity. The 20W Solar charger generates 1A more or less current in perfect sunshine, it will take 12hour to fully charge 12Ah battery from 0 to 100%
Question: Can I just leave this panel in my car's back window facing the sun, connected to my car's battery when not in use to trickle charge the battery
Answer: Yes..that's the way I have it on my truck.
Question: Will this work for lithium battery
Answer: No.

Product features

Renewable Battery Charger & Maintainer

Batteries naturally drain power and go flat, may never regain full power, the solar charger generates electrical current to trickle keep battery topped off as long as there is sunlight avaible.

Three-stages Charging

Smart three-stage charging algorithm is improved to better charge and maintain battery.

MPPT Charge Controller

Built-in super smart MPPT charge controller, generates at least 20% -30% power than traditional PWM technology.

IP65 Waterproof

Upgraded waterproof design to stand rain and snow in outdoor, just hook it there, free maintenance.

Full Protections

Over charge protection, over discharge protection, reversed polarity protection, short circuit protection, full protect battery in all seasons.

LED Indicator

The led indicator helps to clearly understand the whole charging to battery:

  1. LED slow flash in Green: Output Normal/ Always Bright in Green: Battery is full
  2. LED slow flash in Red: Charging Normal/ Always Bright in Red: Error or warrning.

Plug & Play

Equipped with 3-piece connection cable kits, battery clamp, cigarette lighter and bare wire. Each of them is equipped with SAE connector, plug and play, easy & simply to connect and disconnect, no need to recognize positive or negative.

Temper Solar Glass

The hight light transmittance solar glass allows the solar cells absorb more sunlight and increase 2%-3% power ouput. The tempered glass increase the ability to stand water and snow load in outdoor, free maintenance.

Solar Cells

The solar charger was made of A grade solar cells with hight efficiency, works better in sunshine with more efficiency.

NOCO GENIUS10, 10-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

NOCO

Based on 4 reviews Check latest price

Product description

Introducing the all-new GENIUS10, making it one of our most powerful, highest-performing, energy-efficient, and compact charger yet. The GENIUS10 is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator, rated at 10-amp for all types of lead-acid and lithium-ion batteries, including flooded, gel, and AGM, as well as, marine and deep-cycle batteries.



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  • GENIUS10 - Similar to our G7200, just better. It's 17% smaller and delivers 115% more power. It's the all in one solution battery charger, a battery maintainer, trickle charger, plus battery desulfator
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates
  • Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more

NOCO GENIUS5, 5-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

NOCO

Based on 4 reviews Check latest price

Product description

Introducing the all-new GENIUS5, making it one of our most powerful, highest-performing, energy-efficient, and compact charger yet. The GENIUS5 is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator, rated at 5-amp for all types of lead-acid and lithium-ion batteries, including flooded, gel, and AGM, as well as, marine and deep-cycle batteries. Other commonly used search terms: battery charger, car battery charger, battery charger automotive, battery maintainer, 12v battery charger, 12 volt battery charger, 6v battery charger, 6 volt battery charger, auto battery charger, agm battery charger, deep cycle battery charger, bike battery charger, motorcycle battery charger, car battery maintainer, automotive battery charger, motorcycle charger for battery, battery charger for cars, automatic battery charger, trickel battery charger automotive, trickle charger, trickle charger for car, trickle charger for car battery, trickle charger for 12 volt batteries, trickle charger for motorcycle battery, trickle charger 12v, trickle charger 6v, trickle charger for motorcycle, trickle charger for automobiles, trickle charger for lawn mower, battery maintainer 12 volt, battery maintainer 6 volt, battery maintainer automotive, battery maintainer charger, car battery chargers automotive, car battery charger portable, car battery charger maintainer, car battery charger 12v, car battery charger 12 volt, car battery charger 6v, car battery charger 6 volt, car battery charger automotive 12v, agm battery charger maintainer, agm battery charger automotive, agm battery charger 12v, deep cycle battery charger maintainer, deep cycle battery charger 12v, motorcycle battery maintainer, motorcycle battery trickle charger, motorcycle battery charger and maintainer, car battery trickle charger and maintainer, car battery charger maintainer, trickle charger for m arine battery, trickle charger for atv battery, atv trickle charger, motorcycle trickle charger, trickle charger for truck, boat trickle charger, boat battery charger, marine battery charger, boat battery maintainer, marine battery maintainer, marine battery charger maintainer, 12v trickle battery charger, 12v trickle charger, 12 volt trickle charger, 6v trickle charger, 6 volt trickle charger, 12v battery charger automotive, lithium battery charger, lithium battery charger 12v, lithium battery charger motorcycle, smart battery charger, smart battery charger 12v, smart battery charger automotive, smart battery charger/maintainer, smart battery charger/maintainer 12v fully automatic, car battery charger/maintainer, battery charger/maintainer, rv battery charger, rv battery charger and maintainer, rv battery charger deep cycle, winter battery charger, automatic battery charger, smart charger 12v, smart charger 12 volt, charger for car battery, cars battery charger, battery trickle charger, smart battery charger car, battery desulfator, car battery maintainer charger, atv battery maintainer, 12v agm battery charger, battery charger automotive trickle, rv battery charger maintainer, battery trickle charger maintainer, scooter battery charger, automatic battery maintainer, battery trickle charger 6v, cars battery charger, battery tester charger automotive, auto battery charger 12v, automotive charger, automatic 12v battery charger, smart charger trickle, car battery trickle charger and maintainer, car battery trickle charger and maintainer, battery trickle charger battery trickle charger, auto battery trickle charger maintainer, battery+trickle+charger, boat battery trickle charger and maintainer, motorcycle battery trickle charger and maintainer, marine battery trickle charger and maintainer, marine battery trickle charger and maintainer, automatic car battery trickle charger, portable automotive battery trickle charger, 6v/12v battery trickle charger, 12v deep cycle battery trickle charger, battery trickle charger with clamps, motorhome battery trickle charger automotive, battery maintainer for cars, battery maintainer for motorcycles, battery maintainer for boats, battery maintainer waterproof, trickle charger waterproof, best battery mainatiner, best trickle charger, best car battery charger, auto battery mainatiner, 12v battery mainatiner, battery mainatiner motorcycle 12v, 6v battery maintainer, lithium battery maintainer, generator battery maintainer, porsche battery maintainer, 12volt battery maintainer, desulfating battery charger/maintainer, fully automatic battery maintainer, batteries maintainer, diesel battery maintainer, battery maintainer float charger, 6v/12v battery charger/maintainer, deep cycle battery charger and maintainer, battery desulfator charger, battery desulfator 12v, agm battery desulfator, battery desulfator 6v, battery reconditioning charger, battery rejuvenator desulfator, battery reconditioning charger, 12v battery reconditioner, smart charger trickle, motorcycle smart battery charger, agm smart charger, marine battery smart charger, smart charger atv, smart charger motorcycle, smart charger, smart battery chargers, marine smart charger, auto battery smart charger, automotive battery chargers, portable automotive battery charger, automotive battery chargers.

  • Meet the GENIUS5 - Similar to our G3500, just better. It's 34% smaller and delivers 65% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
  • Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

NOCO

Based on 11 reviews Check latest price

Product description

Introducing the all-new GENIUS1, making it one of our most powerful, highest-performing, energy-efficient, and compact charger yet. The GENIUS1 is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator, rated at 1-amp for all types of lead-acid and lithium-ion batteries, including flooded, gel, and AGM, as well as, marine and deep-cycle batteries.



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  • Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
  • Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

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