Top 10 Best 12 Volt Battery Car Chargers Reviews in 2021

There are many different types of batteries available today, and also many different kinds of chargers. Automotive batteries do not need to be charged and left alone for a long time, because they tend to lose their charge with time, and then they may die. For this reason, there are chargers for cars, motor-bikes, ATVs and RVs, that do not only charge the batteries, but also top them off from time to time. This assures that the batteries are always functional, even when they have been unattended to for months, as is often the case with boats, RVs e.t.c. This review will focus on 12 Volt battery car chargers, which also usually offer 6 Volt charging capabilities, with a variety of maximum charging currents.

List of Best 12 Volt Battery Car Chargers in 2021

10. CTEK 12 Volt 4-step Fully Automatic Battery Car Charger

CTEK 12 Volt 4-step Fully Automatic Battery ChargerCheck it on Amazon

The first product in this review is this charger from CTEK. It features 12-volt charging, which is perfect for most light vehicles, heavy vehicles and marine batteries. It also features a unique and patented 4-step charging system, with a program that continually tests the battery’s condition, and then charges and maintains it, in order to ensure optimal battery life and performance. The charger is also sparked, short-circuit and reverse polarity proof. Finally, it is also dust and waterproof, which makes it perfect for prolonged outdoor use.

9. BatteryMINDer Battery Car Charger

BatteryMINDer Battery ChargerCheck it on Amazon

On position 9 is the BatteryMINDer system, which can be used to charge and maintain up to four different batteries at the same time, although this feature requires Y-Connectors that have to be purchased separately. It also comes with an installed temperature sensor, which makes it able to optimize the battery’s charging with reference to temperature. It features reverse polarity, short-circuit and extreme temperatures protection. Voltage can be either 12 or 6 volts.

8. NOCO Genius 6V/12V G3500 Smart Battery Car Charger

NOCO Genius 6V/12V G3500 Smart Battery ChargerCheck it on Amazon

The NOCO Genius charger is a beautifully designed, and futuristic looking charger and maintainer. It can be used to charge all kinds of batteries up to 120Ah, even starting from a fully drained one. The NOCO Genius charger is additionally water resistant, and includes LED indicators to provide visual status feedback on operation modes. It also has spark, overcharge and reverse polarity protection.

7. BC2WBD Charger from Black & Decker

BC2WBD Charger from Black & DeckerCheck it on Amazon

Black & Decker is a well known brand when it comes to domestic appliances. They build high quality and sturdy products that have made the brand a favorite of many households. This charger will also maintain fully charged batteries, and delivers up to 2 Amps of current. The device is Cec compliant, waterproof and dust proof. It also comes with three different connection heads, making you able to use either the normal battery clamps, the 12 volt DC plug, or O-rings.

6. Schumacher 2/6/10 Amp SSC-1000A Charger & Maintainer

Schumacher 2/6/10 Amp SSC-1000A Charger & MaintainerCheck it on Amazon

The Schumacher SSC-1000A is a versatile battery charger and maintainer, and can be used for different types and sizes of batteries. It offers from 2 Amps current for charging smaller batteries, or maintaining larger ones, up to 10 Amps for fast-charging larger batteries. It has a large LED display and a push button for selecting battery type, or for changing other modes. The device automatically monitors the battery, and then adjusts for optimal charge. It also comes with a five year manufacturer’s warranty.

5. Battery-Buddy 6V / 12V Battery Charger & Maintainer from Extreme Max

Battery-Buddy 6V / 12V Battery Charger & Maintainer from Extreme MaxCheck it on Amazon

This device comes with 4 device charging modes, which are initialization, bulk charge, absorption and float. It is perfect for long-term use, which could either be very cold or hot off-season periods. It is thus perfect for boats, or other vehicles left behind for a long while. It can charge 12 or 6 Volt batteries, comes with a one year warranty, and is water resistant in addition to being perfect for extreme weather conditions.

4. Black & Decker BC15BD Charger & Maintainer

Black & Decker BC15BD Charger & MaintainerCheck it on Amazon

Another charger from Black & Decker, this one delivers up to 15 Amps of electric current, for either a fast charging mode or any of its other 2 stages of charging, which are top-ff and trickle charge. It also features a patented alternator and battery voltage checking system. Another feature is the patented Engine Start Timer, which can be used to start most vehicles in up to 8 minutes, even from a completely dead battery. The LCD is large and displays a variety of information, including warning about polarity, battery charge, alternator e.t.c.

3. Energizer ENC 2Amp Charger & Maintainer

Energizer ENC 2Amp Charger & MaintainerCheck it on Amazon

Number 3 of this best battery chargers review is the 2 Amp charger from Energizer. It comes with both battery clips and O-ring terminals. It features a high frequency charging system, with 7 steps, which are switched automatically. It additionally comes with a 5 year manufacturer’s warranty, and can be used either with 12 or 6 Volt batteries. It’s seven step process includes, diagnosis, pre-charge, soft-start, constant current, constant voltage,resting and restoring. These steps ensure the absolutely best battery maintenance process.

2. Black & Decker BM3B 12V / 6V Charger & Maintainer

Black & Decker BM3B 12V / 6V Charger & MaintainerCheck it on Amazon

The third Black & Decker product in this review, this one ranks on position #2 because of its excellent features and affordable price. It can be used for 6 and 12 Volt batteries. It comes with a vehicle DC plug, an O-ring terminal, and normal battery clamps. It also comes with a circuit protection system, which protects it against reverse-polarity, over-charging and short-circuits.

1. Deltran Battery Tender Plus Charger & Maintainer

Deltran Battery Tender Plus Charger & MaintainerCheck it on Amazon

On position #1 of this review is this charger from Deltran. It features all the usual circuit protections like reverse polarity, over-charging and short-circuiting. It can quickly charge a battery to full with up to 1.25 Amps, and then switch automatically to charge maintenance. It also comes with O-rings, normal battery clamps, and a 10 year manufacturer’s warranty. The Battery Tender Plus is very sturdy, and will last for a very long time, given the experience of the company behind it, and their long history in the battery charger industry. Hence its 10 year warranty is no joke, and therefore the number one product in this list.


Since the technology behind charging batteries can’t be improved much on, the important aspects to consider when choosing a battery charger should be price and durability. For its amazing 10 long years of warranty, the Deltran Battery Tender Plus takes the first position in this review. If you need a charger on the other hand, that can handle 6 Volts, or you simply need something cheaper, then the Black & Decker in position #2 should be perfect.





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