Don’t you just hate it when your car runs out of battery, and you must jumpstart it? The worst case is that when you do not have the right tools and equipment. Just imagine all those troubles just to hail another car and revive your battery.

Having a vehicle really entails countless tasks to keep everything in a good shape. In relation to that, having the right tools is a must as you never know when a disaster or an accident would strike.

One of the handy tools you must always have in your car is a 12 V battery charger. This tool comes pretty handy whenever your car battery dies, and you need to revive or jumpstart your car. With a quality 12 V Battery charger, all you must do is align the connectors with your battery and see how your vehicle slowly comes back to life.

For those reasons, our team of experts decided to round up the best 12 V battery chargers available in the market to make everything easier for you. And to have a more detailed perspective, feel free to click on the buttons below that we prepared for you to check out their best deals on Amazon.

Best 12 V Battery Chargers Comparison & Rating

12 V Battery Chargers

Features

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
  • output current of 100 amps
  • multi-stage charging
  • auto voltage detection feature
Battery Tender Plus 12V Battery Charger and Maintainer: Selectable 6V, 1.25 Amp, 12V Battery Charger and Maintainer for Powersports - Switchable 6 and 12 Volt Battery Float Charger by Deltran - 022-0211-DL-WH
  • 1.25 amp output current
  • 12 V of charging power
  • compatible with the majority of batteries
MOTOPOWER MP00205A 12V 800mA Automatic Battery Charger, Battery Maintainer, Trickle Charger, and Battery Desulfator with Timer Protection
  • multi-level safety set-up and timer protection
  • optimization technology
  • battery maintainer, trickle charger, and a battery desulfator
NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation
  • unique integrated thermal sensor
  • detects battery sulfation and acid stratification
  • 4-in-1 solution
BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps and O-Ring Terminals
  • float mode mechanism
  • battery clips and O-ring terminals
  • built-in protection guards to prevent overcharging

1. Schumacher 6 V / 12 V Fully Automatic Smart Battery Charger

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
Specifications:
97% Overall

Brand

Schumacher

Dimensions

11 x 10 x 8 inches

Weight

12.65 pounds

Items

Charger

99%
Power
96%
reliability
98%
durability
95%
ease of use
Pros:
  • Has a whopping output current of 100 amps for engine start and 30 amp boost – specs which are eons away from other brands in terms of charging prowess.
  • Features a battery and test alternator, which makes battery diagnosing more straightforward and efficient.
  • Able to charge lawnmowers to trucks with its powerful charging capacity.
  • Offers incredible smart features, particularly the multi-stage charging and auto voltage detection feature that can quickly detect 6 or 12 V batteries.
  • Safety features include a reverse hook-up protection that ensures the charger will not operate if the clamp’s placement is in reverse.
  • Meets the highest industry standards with its Schu Eco-Energy technology.
  • Compatible with standard, AGM, gel, and deep-cycle batteries.
Cons:
  • A bit on the heavy side, but this reflects that it is built for heavy-duty use.
Final Take:

The Schumacher Fully Automatic Smart Battery Charger is a beast with its charging prowess of 100 amp engine start power and 30 amp boost. It’s so powerful it can even charge a truck! This tool features all the best and latest smart technology a battery charger has to offer. This comes number one on our list because it contains a battery and alternator tester, which provides charge level and helps diagnose electrical problems. Plus, it is convenient and safe to use.

2. Battery Tender Junior 12 V Charger and Maintainer

Battery Tender Plus 12V Battery Charger and Maintainer: Selectable 6V, 1.25 Amp, 12V Battery Charger and Maintainer for Powersports - Switchable 6 and 12 Volt Battery Float Charger by Deltran - 022-0211-DL-WH
Specifications:
95% Overall

Brand

Battery Tender

Dimensions

8 x 4 x 9 inches

Weight

1.85 pounds

Items

Charger, Fused Ring Terminal, Alligator Clips

93%
Power
95%
reliability
96%
durability
94%
ease of use
Pros:
  • Boasts of a powerful 1.25 amp output current to fully charge your battery. It also has a special feature that automatically switches to float mode so your battery would not be overcharged.
  • Able to charge up to 12 V of charging power for various items such as scooters, motorcycles, ATVs, and even personal watercraft.
  • Compatible with the majority of batteries, from lead-acid batteries to AGM and Gel Cell batteries.
  • Features a one-of-a-kind spark-proof battery charger and maintainer that reverses polarity.
  • Smart features include a quick disconnect harness, spark-proof protection, reversed hook-up protection, and a connect it and forget-it feature.
  • Includes a 12-foot output cord.
  • Compact and lightweight, making it easy to store, transport, and use.
  • Comes with a 4-step charging program that allows optimization of battery power without overcharging.
  • Comes with a solid-state two-color LED light that serves as a battery life indicator.
Cons:
  • The exterior is just made out of plastic.
  • Does not feature a temperature compensation system.
Final Take:

You will never go wrong with the Battery Tender Plus. With its 1.25amp power current, say goodbye to the stressful times you have to wait for a long time before your car starts functioning again after your battery dies. Because the tool is small and handy, you can easily set it aside in your car and take it out when you need it. However, do not underestimate the Battery Tender plus power plus because even if it is lightweight, it can charge most automobiles to up to 12 V! Also, it is also equipped with a safety timer of 80 hours, which makes this device even more amazing

3. MOTOPOWER 12 V Automatic Battery Charger

MOTOPOWER MP00205A 12V 800mA Automatic Battery Charger, Battery Maintainer, Trickle Charger, and Battery Desulfator with Timer Protection
Specifications:
93% Overall

Brand

MOTOPOWER

Dimensions

4.1 x 2 x 1.5 inches

Weight

11.7 ounces

Items

Charger, Alligator Clamp Cable, Eyelet Terminal, and Instruction Manual

94%
Power
93%
reliability
90%
durability
95%
ease of use
Pros:
  • Boasts of a 3-in-1 feature including a battery maintainer, trickle charger, and a battery desulfator for a cost-efficient price.
  • Features an automatic desulfation and optimization technology where the tool automatically detects battery sulfation issues.
  • The energy-saving feature includes the tool having a zero-voltage output when it is in standby mode.
  • Safety features include multi-level safety set-up and timer protection.
  • Easy operation for users with the plug and play concept.
  • Perfect for charging and maintaining all 12-volt lead-acid flooded or sealed maintenance free batteries (AGM and gel cell).
  • Optimizes the battery performance during charging without any manual operation.
  • It is spark-proof during lead connection for added consumer safety.
Cons:
  • The cables and terminals included are kinda of thin.
Final Take:

If you want a cost-efficient alternative that has the same quality as other brands? Look no further, as the Motopower has everything that you need for a 12 V battery charger. Its 3-in-1 features save you a lot of money because you no longer have to search for a trickle charger and a battery desulfator. Other neat features that will make your life so much easier when reviving a dead battery include an automatic desulfation feature and a zero-voltage feature, which saves you time, effort, money, and energy

4. NOCO GENIUS 16 V And 12 V Battery Charger

NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation
Specifications:
91% Overall

Brand

NOCO

Dimensions

3.43 x 4.02 x 6.73 inches

Weight

15.2 ounces

Items

Charger, Maintainer, and Clamps 

92%
Power
89%
reliability
90%
durability
91%
ease of use
Pros:
  • Compact and lightweight where it is 35% smaller and delivers 35% more power, which can charge up to 12 V of various batteries from lead-acid automotive batteries to lithium-ion batteries.
  • Features a 4-in-1 solution where this 12 V battery charger acts as a charger, a battery maintainer, a trickle charger, and a battery desulfator.
  • Boasts of a unique integrated thermal sensor that detects ambient temperature and adjusts the charge accordingly.
  • Compatible with all types of vehicles, from ATVs to SUVs and boats.
  • Includes a Genius 1 Battery charger and maintainer, battery clamps, and integrated eyelets.
  • Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
Cons:
  • Does not include a 2 A multi-tier LED set-up battery indicator.
  • Does not have SAE plugs. However, it comes with an SAE connector.
Final Take:

The NOCO GENIUS1 12 V Battery Charger should be your go-to tool when it comes to all battery chargers. With this tiny device, you can amp and revive even the biggest automobiles (and even boats) with batteries that are dead for years! With its extra features such as battery maintainer, trickle charger, and battery desulfator, you definitely will get value for your money because you no longer have to buy all of these extra tools. This tool is also compatible with all types of vehicles; all you must do is plug it in and see your car come to life.

5. BLACK+DECKER BM3B Fully Automatic 6 V / 12 V Battery Charger

BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps and O-Ring Terminals
Specifications:
89% Overall

Brand

BLACK+DECKER

Dimensions

5 x 3 x 8.9 inches

Weight

1.25 pounds

Items

Charger, Battery Clips, and O-ring Terminals

91%
Power
90%
reliability
88%
durability
87%
ease of use
Pros:
  • Powerful charging features that can charge up to 12 V with a variety of vehicles, appliances, and gadgets, including a lawnmower to an SUV.
  • Features a float mode mechanism where the battery charging stops so that you will not overcharge your battery.
  • Has an ETL certificate, which means that it has built-in protection guards to prevent overcharging.
  • Provides a built-in mounting bracket charger for user convenience.
  • Has a reverse connection indicator and a charging indicator to help users maneuver the tool.
  • Includes a mourning bracket built-in to the charger for convenient placement.
  • Comes with battery clips and O-ring terminals for easy connection.
  • Equipped with an extension cord and a low AC voltage compensation that ensures maximum performance when utilized.
Cons:
  • Extension cords are not included and have to be purchased separately.
  • Produces a clicking sound when charging.
Final Take:

If you are looking for a low-cost but powerful 12 V battery charger, then the Black Decker battery charger is definitely for you! This 1.25-pound tool can gear up the most powerful automobiles you have in no time. Its stellar safety features are second to none and enable you to feel safe and protected while you are using the tool. Some of the features that users highlighted are the float mode mechanism, built-in protection guards, and a bracket charger. The Black Decker charger definitely takes your safety into account by building in all these safety features.

Best 12 V Battery Chargers - Buyer's Guide

output current

The rule of thumb when buying 12 V battery chargers is the first thing you should look into is the output current. The higher the output current, the higher the charging power of the charger. If you would like to revive the battery of larger vehicles that have been long-dormant for many years, consider purchasing a battery charger with a higher output current. But if you plan on using your charger for emergency purposes only, you can utilize a lower amp.

size and weight

Most 12 V battery chargers are used to either maintain batteries or revive long-dormant automobile batteries. If your purpose is to maintain batteries, you can consider a more heavy-duty battery charger that is bigger in size and heavier in weight, provided that you will store it in your garage. If you are planning to use this more of an emergency tool and plan to store it in your car, consider purchasing a more portable and lightweight battery charger.

ease of use

For automotive newbies, using a battery charger can be rattling and confusing during emergencies. When looking for a battery charger, go for the plug and play ones where you have to plug in the cable, and it will automatically charge your car.

safety features

Have you heard of horror stories or reviews where owners go and plug their batteries, leave it for a few hours, and come back with the top of the hood exploded in their garage? If you don’t want this to happen to you, search for the safety features, including floating status, battery indicators, and guarded plugs.

items

You have to ensure that you get value for your money. Check on the different items included when you buy a battery charger. For example, ask yourself what cords are included? What connectors come with the tool? The added cables and connectors will save you money in the long run.

Best 12 V Battery Chargers - FAQs

How do I charge my battery with a 12 V battery charger?

Simply connect the black negative cable from your charger to the battery’s negative terminal and ensure that all clamps and cords are secured. Depending on how dead your battery is, you can opt to leave it be for a few hours (or until it is fully charged), and once the charging indicator goes bright green, this means that your battery is finally charged.

How long does it take to charge my battery?

This depends on a lot of factors. First, how big is your battery? Second, how dead is your battery? The average 12 V battery can take a whole day until it is fully charged. Do note that if your battery gets too hot while charging, you need to stop charging it immediately, or else it will explode.

How can I check if my battery is fully charged?

Typically, most 12 V battery chargers have LED charger indicators that tell you whether your battery is fully charged. If your charger does not have this feature, you can use a voltmeter to check if your battery is fully charged. Ensure that the voltage is geared towards 12 V, which means that your battery is fully charged.

In what types of things can I use my 12 V battery charger?

As the name indicates, you can use it with any gadget, appliance, or automobile that uses a 12 V battery! It can be used in simple household appliances like a lawnmower, auto vehicles like an ATV or an SUV, or even larger things such as a water boat or even a truck

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