12 best 12v auto battery chargers

A 12V auto battery charger is a device designed to recharge and maintain the 12-volt batteries commonly used in automobiles, boats, RVs, and other vehicles. These chargers are essential for ensuring that your vehicle's battery remains in good condition and fully charged. Here are some key details about 12V auto battery chargers:

  1. Voltage Compatibility: These chargers are specifically designed for 12-volt batteries, which are standard in most vehicles. Some chargers may offer versatility and compatibility with different battery voltages, but 12V is the most common.

  2. Charging Modes: Many 12V auto battery chargers offer multiple charging modes, including:

    • Bulk Charge: This initial stage provides a high current to quickly charge the battery.

    • Absorption Charge: The charger delivers a constant voltage to ensure the battery is charged fully.

    • Float/Maintenance Charge: After the battery is fully charged, the charger switches to a lower voltage to maintain the battery's charge without overcharging it.

  3. Automatic vs.Manual Chargers: Automatic chargers are user-friendly and can monitor the battery's state and adjust the charging rate accordingly. Manual chargers require the user to monitor the charging process and disconnect the charger when the battery is fully charged.

  4. Safety Features: Many 12V auto battery chargers come with safety features such as reverse polarity protection, overcharge protection, and short-circuit protection to prevent damage to the battery or the charger itself.

  5. Compatibility: These chargers can be used with a wide range of vehicles, including cars, motorcycles, boats, RVs, and lawnmowers. They are particularly valuable for vehicles that are not used regularly and may experience battery drain.

  6. Amperage Rating: Chargers have different amperage ratings, indicating how quickly they can charge a battery. Higher amperage chargers can charge a battery faster but may not be suitable for long-term maintenance.

  7. Desulfation Mode: Some advanced chargers offer a desulfation mode, which helps break down sulfate crystals that can accumulate on the battery plates over time, potentially extending the battery's lifespan.

  8. Portability: Portable 12V auto battery chargers are compact and often come with carrying handles, making them convenient for use in various locations, such as your garage, on the road, or at a marina.

  9. LCD Displays: Many modern chargers feature LCD displays that provide information about the charging process, including voltage, current, and charge status.

  10. Price Range: The cost of 12V auto battery chargers varies based on their features and capabilities. Basic models are affordable and suitable for occasional use, while more advanced chargers with additional features are available at higher price points.

In summary, a 12V auto battery charger is an essential tool for maintaining and recharging vehicle batteries. It is crucial to choose a charger that suits your specific needs, taking into consideration factors such as voltage compatibility, charging modes, safety features, and portability. Proper battery maintenance and charging can help prolong the life of your vehicle's battery and prevent unexpected breakdowns.

Below you can find our editor's choice of the best 12v auto battery chargers on the market
  

Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart Battery Charger 100A Engine Starter and 30A Boost Maintainer and Auto Desulfator Advanced Diagnostic Testing

Based on 3 reviews Check latest price

Product description

Charge or jump start your SUV, truck, or large battery with the Schumacher SC1281 6/12V Fully Automatic Battery Charger and 30/100A Engine Starter. Contains battery and alternator tester which provides charge level and helps diagnose electrical problems. Features 30A for quick energy boost and 100A to jump start your car right away. Microprocessor controlled, multi-stage charging adds precision, safety and battery life. Built-in reverse hook-up protection prevents charger from operating if clamps are reversed. LED indicators and Start/Stop push button interface improves accuracy and ease of use. Features auto voltage detection to easily detect 6 or 12V batteries. Meets the highest industry standards with its Schu Eco Energy. DOE compliant. Compatible with standard, AGM, gel, and deep-cycle batteries.

  • Features 30A quick boost and 1H2:L1600A jump start, powerful enough to start SUVs, trucks and large batteries
  • Battery and alternator tester provides charge level and helps diagnose electrical problems
  • Features multi-stage charging and auto-voltage detection for added precision, safety and battery life
  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM, gel and deep-cycle batteries

User questions & answers

Question: Does this charger have a desulfation mode on it
Answer: The manual talks about a desulfation mode existing, but does not say how to trigger it, or whether it is part of the automatic charging system. https://www.batterychargers.com/sites/default/files/manuals/0099001912E-R3.pdf page 8.
Question: What does the 2/6 mean? Is this the trickle or battery maintenance mode info
Answer: Starts at a moderate 6 amp charge reducing to 3 amps as charging nears completion.
Question: Is it portable
Answer: Light and portable, but needs a 120volt outlet, or a long(100' extension cord) to far distances.
Question: Is this a 4 stage charger (bulk, absorption, float, equalization
Answer: The SC1281 does, Bulk, absorption, equalization, desulfation and maintenance features

Schumacher SC1359 15 Amp 3 Amp 6V/12V Fully Automatic Smart Battery Charger Maintainer Auto Desulfator Auto 6V/12V Battery Detection For Cars, Trucks, SUVs, Marine, RV Batteries

Schumacher

Based on 493 reviews Check latest price

Product description

Charge and maintain your automotive and marine batteries with the Schumacher SC1359 6/12V Fully Automatic Battery Charger and 15A Maintainer. Digital display and push button controls make this unit easy to use. Microprocessor controlled, multi-stage charging adds precision, safety and battery life. Features auto voltage detection to easily detect between 6 and 12V batteries. Built-in reverse hook-up protection prevents charger from operating if clamps are reversed. Meets the highest industry standards with its Schu Eco Energy. DOE compliant. Compatible with standard, AGM, gel, and deep-cycle batteries.

Specifications:

Battery Type

Standard

AGM

Deep-Cycle

Input Voltage

 120V AC

Input Current

 3.6A

Output Voltage

 6/12V

Output Current

 6V/2A, 12V/15A

Dimensions

 3.63 × 10.5 × 7.75 in

Weight

 3.59 lb

Safety Certifications

 UL ULC

 

  • Features 15A to charge and 3A to maintain your battery
  • Microprocessor-controlled, with multi-stage charging for added precision, safety, and battery life
  • Auto voltage detection automatically detects 6 or 12V batteries
  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM and deep-cycle batteries

User questions & answers

Question: If my 12v auto battery is at less than 6 volts, this unit thinks it is a 6V battery and stops charging when it comes back up to 6 v. Any way to fix
Answer: Not sure what you mean by mounted. It is lightweight and has no holes for screws.
Question: What is the difference between this charger sc2359 and sca1500a
Answer: A flashing green light means it’s charging. When the green light stays on it’s charred. Did you try a different battery in the charger to test if the green light indicator is working? I think you may have a bad charger.
Question: do you have to charge the device before you use it to charge car battery
Answer: The green light will flash when the battery is charging
Question: How many watts does it take to power this unit? I will be powering the charger with a small generator which only puts out 700-800 watts
Answer: It could be that the battery pack inserted is no compatible with the charger , is totally out of charge (if you leave it overnight it will get fix ) or is a defective battery.

STANLEY BC25BS Smart 12V Battery Charger for Car/Marine Charging, 25 Amp

Based on 2 reviews Check latest price

Product description

The STANLEY BC25BS bench battery charger features a 75 amp engine start, which helps start your vehicle in about 90 seconds. If you are looking for battery maintenance instead of a jump start, once connected to your vehicle battery the bench battery charger does the rest for optimum performance. Our fully automatic high frequency maintenance charger delivers 3-stage charging and automatically switches from fast charge to top-off to trickle charge. This bench battery charger is ideal for motorhomes, boats, jet skis, lawn tractors, ATVs, snowmobiles, and vehicles that sit idle for months at a time. It is able to charge and maintain any AGM, GEL, or WET automotive or marine 12V battery. It's equipped with a digital LCD screen that displays charging status and battery status with easy to understand icons. It also features a patented alternator check to evaluate the battery voltage under load to indicate if the alternator is maintaining battery level. This battery charger eliminates the need to manually input settings like battery type and size, and charges up to 40% faster than other conventional chargers. The built-in cord, cable wrap, and clamp storage make this battery charger easy to use and store. It is also California Energy Commission (CEC) compliant and ETL Certified for performance and safety.

  • Dependable and safe to use; In an emergency, the 75-amp engine start helps jump start your vehicle in about 90 seconds
  • Successfully maintains the battery on any AGM, GEL, or WET automotive or marine 12V battery with the push of a button
  • High-frequency smart charging technology keeps battery at an optimal charge and automatically switches from fast charge, to top-off, to trickle charge
  • Allows you to monitor and charge your battery in the quickest and safest way possible; Provides extended longevity
  • Front of battery charger features four different options; LCD screen displays battery status with understandable icons

User questions & answers

Question: If a little rain wet this charger would it mash up
Answer: If the charger got wet, take it in the house and let it COMPLETELY DRY OUT. Let it dry for a DAY OR TWO. Don't even think about using the charger if it hasn't dried out!
Question: Can I use this to jump start my vehicle if I do not have access to a power source
Answer: Yes, it's the first item in the description: "In an emergency, the 75-amp engine start helps jump start your vehicle in about 90 seconds."
Question: Working with 220 volts imput
Answer: NO This unit is for 110 volts only. DO NOT USE WITH 220 VOLTS.
Question: I have a full size chevy 1500 would the engine start feature crank my truck with an almost dead battery
Answer: Turn off all accessories and and proceed to crank as you normally do. the starter is still 12 volt, there's no reason that your engine should not start, I haven't considered the diesel starting possibility, but start as one usually would,and Idont forsee any problem. I've had to only use this feature once, but it worked as designed, I like this product, and recommend to other undecided, possible buyers. :-) Augusta Ks. 4-3-17

KATBO Automatic Battery Charger 6V 12V Auto-Voltage Detection, 2Amp 6 Amp Lead Acid Battery Float Charger Maintainer With LCD Display For Motorcycle Car Boat Marine Lawn mower Atv Toy Car

Based on 142 reviews Check latest price

Product description

Suitable for charging all types of 6-volt or 12-volt lead-acid battery up to 120AH, to choose 2Amp or 6Amp charging current freely according to the capacity of the rechargeable battery and charging time (2A suitable for below 45AH, 6A for the battery above 45Ah.



Multi-current function: You can manually switch the appropriate current based on 2A / 6A charging current.

The latest technology of the microprocessor detects the battery voltage and will monitor the whole charging process when the battery is fully charged with automatic shutdown. Then it will monitor the battery voltage and maintain the battery charge current.



Safety design: overcharge protection, overheat protection, reverse protection and short circuit protection.

LCD digital display: simply view battery voltage and battery charge status.

LED Indicator: Simply check battery charging status.



For cars, light trucks, ships, RVs, farm equipment, annual conferences, gel batteries and deep cycle batteries.

6 amp charging can adjust charging rate and keep your battery in a peak status. While 2 amps with slow charging and small charging current, it will protect large batteries. Easy charging for motorcycles, ATVs, snowmobiles, lawn car.

Automatic voltage detection means that the charger automatically detect 6V or 12V battery.



Specification:

Item Weight: 1.0 pounds (455g)

Shipping Weight: 1.16 pounds (525g)

Product Dimensions: 6.4 x 3.66 x 2.13 inches

Color: Black

Input: AC 100-130V 50Hz/60Hz 2.0A

Output: DC 6V 2A; DC 12V 2A/6A

LED screen: Display battery voltage and charging level

Length of cable: 170cm (67inch) + 65cm (25.6inch)



What's Included in your Packing Box:

1 x battery charger

1 x User Manual



Battery failure analysis

F01 / F06 battery failure, please replace battery

F02 reverse connection

  • Microprocessor-controlled - automatically adjusts the charge current and maintainability.
  • Provide 2A and 6A charging current matching battery and Float Charger Maintainer, charging safe and extended battery life.
  • LED digital display voltage and power, automatic voltage detection:detection for 6V or 12V battery.
  • To achieve the highest industry standard of energy efficiency.
  • Overcurrent protection, overvoltage protection, overheat protection, reverse protection, with self-stop function.

User questions & answers

Question: Does unit have manual constant charging function
Answer: Have to check. Will get back to you later.
Question: Can this be used to jump start a car with a dead battery
Answer: It can only charge the battery with low electricity, and it can't directly start the battery without electricity.
Question: is it 120 or 220 vca
Answer: I don't know what vca is but it is 120 volt, plugs into regular outlet
Question: will this work on a toro riding mower battery
Answer: Yes it will!!

2/8/15A 12V Smart Battery Charger/Maintainer Fully Automatic with Winter Mode

Based on 2 reviews Check latest price
  • 【Versatility & Efficient】 2A/8A/15A/Auto charging rate, fully automatic high frequency charging for all types of 12V lead acid batteries, including GEL, AGM and STD. Automatically selects charge rate for charging and maintaining (Do not charge a frozen or battery that has gone below 3V).
  • 【Complete 7-step Charging Program】Desulphation, Soft Start, Bulk Charge, Absorption, Battery Test, Recondition and Floating, allow for optimization of battery power, without overcharging or damaging.
  • 【Multi-Protection】 Microprocessor-controlled, with multi-stage charging for added precision, safety and battery life. Including Over Voltage, Over Heat, Overtime Charging, Short Circuit and Reverse Polarity.
  • 【LCD Screen Display】The battery charger equipped with advanced LCD Display. LCD screen displays charging status, charging current, voltage, battery type and error information with easy to understand icons.
  • 【Advanced Winter Charging Mode】Specialized design for charging battery in winter weather conditions to sustain a longer life of battery and to ensure perfect charging.

User questions & answers

Question: What gauge wire are the charging leads
Answer: #6
Question: can charge battery outside the car
Answer: Sure, You can also remove the battery from the car and charge it at home
Question: Will the 2/10/25 model allow me to step the Boost down to use 15Amp, if I need to use a 15 amp wall outlet at some location
Answer: This charger 2/10/25 model is the charing rate for your battery. You can use it at any wall outlet in 110V voltage.
Question: Can you you explain why this will not charge a dead battery? Isnt that what battery chargers are for? Ty
Answer: By "dead battery" the manufacturer means, a battery that is beyond repair. Any battery that has been drawn below 4 volts will not be sensed by the charger as a safety measure because it is beyond repair and could cause fires or electrical issues. This charger will recharge a battery that is temporarily out of energy (could read 10 volts to 12 volts on a voltmeter), but not one that is "dead" or damaged beyond repair (would read very low voltage, like 3 volts).

Product features

The Best Choice for Your Battery, Charge and Recover Your Battery.

TowerTop High frequency battery charger and maintainer is used to keep batteries instored vehicles and battery applications at optimal capacity.

Charges 12V AGM, GEL and STD batteries in RVs, specialty vehicles, antique and>

Protection Features

  • Overheat Protection - if the charger is overheating, the charger will automatically shut off and will automatically resume when the charger has cooled down.
  • Reverse Polarity - if the cables connected are reversely connected, the charger will not work, and the LCD screen tells you to correct polarity.
  • Overtime Charging Protection - if the battery cannot be fully charged within 24 hours, the charger will stop charging automatically.
  • Short Circuit Protection - if the cables connected suffer from the short circuit when the charger working, the charger will stop charging automatically.

Unique Storage Cables Design

It easily solves your troubles with storing cables. After use, you can quickly store your cables. No more wasting your time.

Smart Turbo Cooling Fan

High-performance motor with good heat dissipation effect, provide a good working environment for the charger. When the charger is in constant current and constant voltage, the fan would work.

Winter Mode

Battery Charger is suitable for use in multiple climate regions. Working temperature is 32°F (0°C) - 104°F (40°C). The charger can work below 0 ℃ that no need to worry about charging when traveling to cold places.

Ampeak 2/10/25A Smart Battery Charger/Maintainer 12V Fully Automatic with Engine Start

Ampeak

Based on 1 reviews Check latest price
  • 🚗▶Fast Smart Battery Charger◀: Quickly charging all types of 12V lead acid batteries, including GEL, AGM and STD. It's the best smart charger for christmas gifts, automotive, motorcycle, marine, RV, Powersport, lawn&garden, children toys, etc.
  • 🚗▶Start Aid Button◀: Energy saving design for activating battery whose capacity is not enough to start engine within one 120 second cycle
  • 🚗▶Advanced Reconditioning Mode◀: Use our advanced Reconditioning Mode to reverse the damaging effects when batteries are left uncharged for extended periods to improve battery performance and longevity. (Do not charge a frozen or dead battery!)
  • 🚗▶Smart Detect System◀: Automatically detect the battery voltage and capacity, and select the charge rate best fit for your type of battery. Automatic charge cycle functionality switches to float mode after fully charging the battery
  • 🚗▶Advanced & Safety Protection◀: LCD helps keep driver informed of chargers operation. Certified by UL. No worry about battery over voltage, over heat, overtime charging and reverse polarity. 18-Month Hassle-Free Warranty, 24-hour friendly customer service and 100% customer satisfaction will be provided by contacting our professional customer service team

User questions & answers

Question: Does this item have an internal cooling fan
Answer: Yes, it does. This smart battery charger features with one cooling fan and reliable cooling vent to disperse heat and increase charging efficiency.
Question: How long does reconditioning or repair mode take? My battery has been in repair mode for over 12 hrs. Can it get stuck and does that hurt the battery
Answer: The recondition time depends on the status of your battery. The recondition function adopts high voltage up to 15.8V to stimulation battery, mainly for the bad battery caused by short circuit or low-softening plate. The working cycle is five cycles, each cycle is 4 hours. If the charger test concludes that the battery (using the object) is still less than 12V after the repair cycle, the dead battery is determined.
Question: Why does my charger keep saying clap the battery when i did and nothing happens
Answer: Below about 4Volts, the charger doesn't think a battery is connected, and you won't see voltage displayed. If you can boost or parallel the voltage high enough, it will start charging, but a battery that dead is probably destroyed. As for other answer saying to press the charge button, you can change options for 30 seconds and manually press charge, or just wait and it starts by itself (auto-amperage and flooded cell by default) once it detects the battery and you see voltage displayed.
Question: Will the charger work with batteries connected in parallel (eg. RV house batteries) without having to disconnect them
Answer: This smart battery charger supports charging 12V lead-acid battery. It is not recommended to charge battery in parallel. Because the surge current is too large, the battery would be damaged.

Product features

Intelligent Temperature Protection System

Support working under temperature -4℉~ 104℉, to ensure the battery can be charged and start normally and prolong the life of battery

Fully Automatic

Features with Smart Detect System, Automatic Stop After Full-charged, Automatic Identify Low Voltage, Automatic Start Charging, Automatic Stop After Full-charged.

Smart MCU Controlled Program

Intelligent microprocessor monitors the attached battery's voltage level from the moment it is connected, using this ever-changing data to improve the charging system's multi-stage charging cycle, resulting in quicker charge times, and preventing from Overtime Charging, Over Voltage, Over Heat, Short Circuit.

Schumacher SC1305 50 Amp 10 Amp 12V Fully Automatic Battery Charger 50A Engine Starter and 10A Boost Maintainer and Auto Desulfator For Cars, Trucks, SUVs, RV Batteries

Based on 339 reviews Check latest price

Product description

The Schumacher SC1305 Fully Automatic Battery Charger/Engine Starter is designed for engine starting, charging, and rugged use, with 50A engine start; 10A boost mode; and 6<>2A charging and maintaining. This unit is microprocessor controlled to automatically adjust the amperage rate to charge and maintain, with multi-stage charging for added precision, safety and battery life. Features float mode monitoring to automatically maintain optimum battery charge, as well as reverse hook-up protection so charger won't operate if clamps are reversed; LED indicator will flash. Includes heavy-duty steel case. Schu Eco Energy meets the highest industry standards. DOE compliant. Contents: Schumacher SC1305 manual.

  • 50A engine start, 10A boost mode and 6/2A charging and maintaining
  • Microprocessor controlled to automatically adjust the amperage rate to charge and maintain
  • Multi-stage charging for added precision, safety and battery life
  • Float mode monitoring automatically maintains optimum battery charge
  • Reverse hook-up protection helps prevent damage to battery and charger. Refer to the PDF attached below in Technical Specification for User Manual

User questions & answers

Question: My newer cars use gel batteries. Will this auto adjust for those
Answer: I installed underneath the seats and behind the rear seat, sealing off the trunk. It reduced road noise drastically. This is a great sound barrier and deadener.
Question: What is the output voltage
Answer: The roll is 3" thick, as in it is multiple layers of thin sheets. It is clear from the photo that a single layer isn't that thick. If anything it is just confusion by whomever wrote the description. I used a single roll of this to coat the entire interior of my Miata. Everywhere from the doors, under all the carpets, under the dashboard and so on. Significant improvement in sound, and it is much easier to regulate the temperature in the car. If it is a hot day, simply getting rid of the warm air by opening a window for a minute is enough to bring the internal temperature down to comfortable levels. The thickness is perfect as it fits discretely anywhere I put it, and noone can tell that I put it everywhere. Nothing has come off at all for me after a year, but it is sandwiched between 2 layers, so I can't confirm for other applications.
Question: How long should it take to charge completely dead battery at 10 amps
Answer: I have never tried it on a dishwasher but in the truck that i installed it in there was a slight smell the first day after i installed it and then the next day the smell was no longer there. it has been a few months since i installed it and the smell never returned and with temps in South Louisiana hitting a heat index of 110 the smeel still has not returned.i hope this helps and let me know how it goes because i never thought about doing the dishwasher butnow you have me thinking.
Question: Will this charge a deep cycle marine battery and maintain it
Answer: I do not think it would be a good idea to use this material on a window. It has a black sticky side which would be hard to remove and the other side is aluminum foil. Once applied it would be hard to remove. It does reduce the noise and vibrations, but would not look very good.

Product features

SC1305

  • Microprocessor controlled ─ automatically adjusts the amperage rate to charge & maintainM
  • ulti-stage charging for added precision, safety and battery lifeF
  • loat mode monitoring ─ automatically maintains optimum battery chargeR
  • everse hook-up protection ─ charger won't operate if clamps are reversed; LED indicator will flash.H
  • eavy-duty steel case

12V 5A Automatic Battery Charger - Heavy Duty 12V Smart Boat Battery Maintainer, Compact, Fast Charging, Car, Motorcycle, Marine, Cart, Mower, Auto, ATV, RV, GEL, VRLA, Wet, AGM, SLA Sealed Lead Acid

  • Premium Automatic 12 Volt 5 Amp Battery Charger - Power Charge a fully drained 12V Battery PB, SLA, AGM, GEL, Sealed or WET Lead-Acid batteries. Our smart charger will automatically trickle charge your automobile battery, motorcycle, lawn mower, tractor, ATV, RV, Personal Watercraft, Jetski, Powersport Equipment, Scooter, Snowmobiles, Cars, Campers, Marine Vessels, Boats, and almost any 12 volt battery cell
  • Safe and Reliable Trickle Charging - Full protection against Reverse Polarity, Short Circuit, Over Voltage-Current, Over Charge-Discharge, Overheating, Overload - Spark Proof, Water and dust resistant float battery charger, full-loaded and burn-in test proves its stable performance and excellent reliability. Faulty Battery LED which lets you know if your battery is good
  • 5-Stage Automatic Charging with Intuitive LED Light Indicator - Our 12V 5A automotive battery charger maintainer provides visual state-of-charge feedback and diagnostic information, even when in maintenance mode. Input 100-240V, ultra-compact and lightweight, easy to carry the motorcycle battery charger everywhere
  • Dual Alligator Claws and Ring Connectors: Our charger comes with two kinds of battery connectors, including battery clamps and battery rings for a more secure connection to battery terminals with 10 Amp inline fuse. Total cable length: 6ft
  • Keep Your Battery Healthy - The Precision Auto Battery 12V Power Charger will provide you with a long lasting solution to your batteries charging needs. Our charger has proven over time to be extremely reliable, and provides a fast, powerful charge to your marine or automotive 12 volt battery.

Product features

Precision Auto - Car & Boat 12V 5A High Performance Smart Battery Charger Maintainer

Precision Auto 12V 5Amp Battery Maintainer is suitable for 12 volt Car and Boat Batteries, charging your car, motorcycle, ATV, RV, Boat, Scooter, Golf Cart, Lawn Mower and Ride-On Toy batteries that use AGM / GEL / VRLA / WET / and Sealed Lead Acid.

  • Our trickle charger is a smart, lightweight, compact, fully automatic and very easy to use. This 12 Volt battery maintainer will keep the battery fully charged and it is ready to go anytime.
  • Our premium battery charger is equipped with alligator clips, and ring terminals. Connecting is simple to hook up.
  • Ring connector cord is equiped with 10A Fuse to enhance security.
  • Power battery charger is built to last, with a fully sealed outer case, water-resistant, dust-resistant, oil-resistant, and anti-moisture, to prevent corrosion or other damaging effects of weather exposure

Automatic 12V Smart Battery Charger for most vehicle 12 Volt Batteries

4-step Charging Program & LED Indication

  • Stage 1: Desulfation of the battery through 18V pulse. (LED 1 ON, 2-4 OFF)
  • Stage 2: Bulk charging highest rate current till 80% capacity. (LED 1-4 Blinking Sequentially)
  • Stage 3: Absorption, till full capacity. (LED 1-3 ON, 4 Blinking)
  • Stage 4: Float, Battery is fully charged. Maintain the battery through pulse charging. (LED 1-4 ON)
  • Trickle Charger automatically switches to float mode while fully charging by microprocessor controlled program, with overcharging protection.
  • Iconic LEDs blink means the wrong polarity: ON means bad battery.

IMPORTANT: If your battery stays at stage 2 after 24 hours of charging, then your battery is almost certainly defective.

  • Please confirm you have a 12 volt battery before charging.

Super Charge, Trickle Charge, Peak Charge, Smart Charging!

  • DC Output 13.8V/5.0A;
  • AC Input 100-240V, 60/50Hz

  • Our 12V 5A battery charger works perfectly charging batteries with 15-120Ah capacity.
  • IMPORTANT: Optimal charging your battery, your batteries capacity should not be lower than 15Ah.
  • Our 12v charger can also charge 100Ah+ batteries, but will require need more charging time.

Easy To Operate - Safe, Simple and Efficient Charging

Charges and maintains your batteries automatically for an extended period of time

  1. Plug the charger to an AC socket, LED will light on.
  2. Connect RED clip to positive battery terminal, BLACK clip to negative terminal.
  3. The 25%-100% LEDs light will turn on in sequence.
  4. Battery is fully charged when all LEDs are ON.
  5. Disconnect or keep it connected in float mode.

IMPORTANT

  • If all LED lights flash simultaneously, the polarity of the battery is reversed or the output shorted.
  • Please disconnect the charger and check your connection.

Charger Specifications & Cable Length

  • Maximum length from socket to battery: 235cm / 92.5in
  • Charger Length: 15cm / 6in; Width: 7cm / 2.8in, Height: 5.5cm / 2.2in
  • Input Cable of Charger (Black): 100cm/ 39.9in
  • Output Cable of Charger (Black & Red 60cm / 23.6in
  • Clamp Connector Cable Length: 60cm / 23.6in
  • Ring Connector Cable Length: 60cm / 23.6in

What's Inside the Box? Our 12 Volt 5 Amp Smart Charger Package Includes:

  • 1 x Portable Smart Battery Charger
  • 1 x DC Output Cable with Clip Connectors
  • 1 x DC Output Cable with Ring Connectors and 10A Fuse
  • 1 x Instruction Manual

Schumacher SP1297 3 Amp 6V/12V Fully Automatic Smart Battery Charger Maintainer and Auto Desulfator Auto 6V/12V Battery Detection For Cars, Motorcycles, Lawn Tractors, Power Sports, Marine Batteries

Based on 1 reviews Check latest price

Product description

The Schumacher SP1297 12V Fully Automatic Battery Charger and 3A Maintainer is great for motorcycle, car and marine batteries. It’s energy efficient and fully automatic. The clamp and ring terminal adapters are easy to connect, and the convenient hook attachment lets you hang the unit outside of the work area. The microprocessor automatically adjusts the amperage rate with multi-stage charging and float mode monitoring for optimum charging and maintaining to extend battery life. This battery charger features reverse hook-up protection which prevents the charger from operating if the clamps are reversed. The scrolling digital messaging provides step-by-step instructions to properly charge your battery. This unit includes a hook attachment which allows it to hang outside of the work area for safety and convenience.

  • Delivers 3A to charge and maintain your motorcycle, car and marine battery
  • Microprocessor-controlled, with multi-stage charging for added precision, safety, and battery life
  • Reverse hook-up protection prevents the charger from operating if the clamps are reversed
  • Float-mode monitoring automatically maintains optimum battery charge
  • Includes hook attachment to hang outside the work area for safety and convenience

User questions & answers

Question: Can this. Be used to jumpstart a car
Answer: I've only used it to jump my riding lawn mower. The product description does say it can be used to jump cars. Perhaps you can call the manufacturer.
Question: Is this something I can charge and use or does it have to be plugged into an outlet to work
Answer: The SP1297 does not store power - it has to be plugged into an A/C power in order to operate
Question: Will it work with battery U1R-1T titan battery
Answer: Yes, the SP1297 will work with this specific battery
Question: How warm or hot does the unit get while recharging 12V battery
Answer: Mine does not get hot at all. If I leave it on for hours it does get warm but never so hot I cannot touch it.

BLACK+DECKER BC15BD Fully Automatic 15 Amp 12V Bench Battery Charger/Maintainer with 40A Engine Start, Alternator Check, Cable Clamps

BLACK+DECKER

Based on 2 reviews Check latest price

Product description

The BLACK+DECKER BC15BD battery charger and maintainer will get you back on the road in minutes when your vehicle won't start or if your battery needs maintenance. Just connect the battery charger clamps to the battery terminal and press charge. The bench battery charger automatically does the rest for optimum performance. Fully automatic high frequency charging delivers 3 stage charging, automatically switching from fast charge, to top-off, to trickle charge. This bench battery charger is ideal for motorhomes, boats, jet skis, lawn tractors, ATVs, snowmobiles, and vehicles that sit idle for months at a time. Charge and maintain any AGM, GEL, or WET automotive or marine 12 V battery. It's equipped with a digital LCD screen that displays charging status and battery status with easy to understand icons. It also features an alternator check to evaluate the battery voltage under load to indicate if the alternator is maintaining battery level. This battery charger eliminates the need to manually input settings like battery type and size, and charges up to 40 percent faster than other conventional chargers. The BLACK+DECKER BC15BD bench battery charger and maintainer also features a 40 amp engine start, which helps start your vehicle in about 90 seconds for when you need to get back on the road quickly. The built-in cord, cable wrap, and clamp storage make this battery charger easy to use and store. California Energy Commission (CEC) compliant and ETL Certified for performance and safety. Includes a limited 1 year manufacturer warranty.

  • 15 amp bench battery charger maintains and charges any AGM, GEL, or WET automotive or marine 12V battery
  • Fully automatic high frequency charging delivers 3 stage charging, automatically switching from fast charge, to top-off, to trickle charge
  • Battery reconditioning feature helps extend battery life; 40 amp engine start helps start your vehicle in about 90 seconds
  • Equipped with reverse polarity protection; LCD screen displays charging status and battery status with easy to understand icons
  • Features a patented alternator check which indicates if the alternator is maintaining battery level; ETL Certified for performance and safety

User questions & answers

Question: Will this work on a dead duralast gold battery
Answer: Right angle plug, but no issues connecting to any radio so far.
Question: Is it portable or it have to be plug in all the time
Answer: This is an 8 ohm speaker, not 4 ohm so if your application needs a 4 ohm speaker (most car sound systems are 4 ohm) and you use this one, it will not be as loud as it should be. I used this speaker for a Motorola 2 way radio in one of our fire trucks that had a bad internal speaker and so far it works AWESOME and is plenty loud and clear even at half volume.
Question: Can you use it on two deep cycle batteries hooked in parallel
Answer: I do not believe there is a warranty but I can tell you it is a great speaker. The speaker is used with my Yaesu FT 8800R and I would recomend it.
Question: I recently purchased this battery charger but I received a Stanley brand. Did anyone actually receive what is pictured (Black & Decker
Answer: no i t does not we can see were we are all over long island sound and Ct river in old saybrook ct.

Product features

Black & Decker BC15BD 15 Amp Bench Battery Charger with Engine Start Timer

Black & Decker knows how frustrating it can be to wake up to a dead battery, which is why they made the BC15BD, the only battery charger you will ever need. With it's patented 40A Engine Start Timer technology, the BC15BD can optimize the power of your battery in only 8 minutes, giving you enough power to start most cars, even when your battery is completely dead. The BC15BD also is completely automated with 3 built in charging options, switching between fast charge, top off, and trickle charge when needed to ensure that your battery is always being charged at the highest capacity and in the shortest amount of time possible.

One of the most advanced charger on the market

The BC15BD boasts many patented features unique to Black & Decker such as an alternator and battery voltage check gauge which is view able from a large LCD monitoring screen. The LCD screen displays information through easy to understand icons, monitors the electrical charge of your alternator and battery simultaneously, and even alerts if the battery clamps are connected to the incorrect terminals.

Completely worry free charging.

Because the BC15BD was created with you in mind, everything is completely automated for more ease of use. Many other chargers require that you set various settings such as battery type and size but with the BC15BD you can simply plug in the charger and walk away knowing that everything will be done correctly, and with the capability of charging 40% faster than most conventional chargers, you will be back on the road in no time.

ATian Smart Battery Charger 12V/20A 24V/10A Automatic Battery Maintainer Auto-Volt Detection,with LDC Display Tester for Car Motorcycle Lawn Mower AGM GEL Lead Acid Batteries (Red)

Based on 37 reviews Check latest price
  • 【Multi-Use Car Bettery Charger】A smart car battery charger to charge and repair all 12V 24V AGM, GEL, SLA, ATV, deep cycle lead-acid batteries. Provide the best performance for automotive, motorcycles, marine, boats, mowers, trucks, golf cart, RV and other 15-200Ah batteries.
  • 【One Click Intelegent Repair】Repair the battery below 8V.this product automatic sulfating and acid stratification detection, the advanced pulse repair function with four stages charging can help to your loss battery and extend battery life.
  • 【Charge dead batteries】Auto-Volt Detection- 12 volt or 24 volt batteries, monitors the whole charging process automatically by microprocessor-controlled program, select the charge current best fit for your battery and stop charging automatically when battery is fully charged. Also you can manual selection for 12V 5A/10A/20A or 24V 5A/10A charging current.
  • 【Intuive LCD Display 】Updated with visual digital LCD screen, the automotive battery charger clearly charging voltage/current, charging mode, battery type and percentage of power remaining, even when in maintenance mode. Helps monitor the status of the battery and charger.
  • 【Multi Safety Protections】Safely designed with multiple protections against Reverse Polarity, Short Circuit, Over Voltage/Current, Over Charge, Overload. Detachable alligator clips, spark proof during lead connection, quality cooling fan rotate faster to avoid overheating when tempreture is so high, full-loaded and burn-in test proves its stable performance and high reliability. ATian battery charger offer 1-Year quality assurance & refund & timely after-sale service.

User questions & answers

Question: Why can't the charger charge my battery
Answer: The battery has lost power and is below 8V. Press the fourth repair button for 8 seconds and a snowflake appears to start charging.
Question: The screen is always beating while the charger is charging
Answer: May have entered floating charge mode.
Question: After fully charging the display voltage of 14.4V, repair the display voltage of 13.3V. What is the situation
Answer: When the battery is charged, the lead-acid liquid heats up and becomes a virtual electricity. When the charging is stopped, the electrons in the battery stop moving, and the battery voltage will drop.
Question: Is there a safety feature that stops it from over charging?Does this draw power from a battery if left connected to the battery
Answer: Of course it has. This smart battery charger features with Smart Detect System to detect the battery voltage and capacity, and automatically switches to float mode to prevent overcharging. Once the battery is fully charged it will automatically shut off. No draw.

Product features

NOTICE:

We have received some feedbacks from some buyers.

The manual of this charger is hard to understand.So we uploadeda a new manual on the product page.

The new manual is easier to understand.We strongly recommend that you download a new manual, which will make it easier for you to use this product.

If you have any other questions , you can also sent message to us via Amazon.

How to Ues

  1. Battery voltage:The charger automatically identifies batteries voltage, no need to select the voltage.
  2. Charging current:It cannot be changed after charging starts. If you want to change the current, you need to press the On / Set button twice, after stopping charging, select the current again.
  3. Change battery type:It can be changed during charging.
  4. After setting the current and battery type, press the "ON / SET" button to start charging!!!
  5. The charging would automatically stop when the battery is fully charged.

Temperature controlled cooling fan

Fan will turn on automatically when temperature exceeds 113℉.

Comfortable handle

ABS made Handle designed. The handle can be rotated 180°, which is convenient for storage and carrying.

All-Inclusive Battery Clamps

No need to worry about Leakage,Prevent sparks.

Large bite force, not fall off.

Bold inner core, stable current, no damage to battery.

Button introduction

  • The display can display real-time current and voltage
  • With ON/OFF switch button, easy to use
  • CURRENT button:Set the current value through the
  • MAINTENANCE button : repair low-voltage batteries
  • BUTTERY button:Choose battery type

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.

Latest Reviews

View all