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The 5 Best Deep Cycle Battery Chargers of 2022

Deep cycle batteries can hold a lot of charge. They are used to power up large appliances and vehicles. A deep cycle battery charger provides a reliable source of power to charge these batteries. It completely charges batteries to full capacity. Thus providing a safe and secure source of power. It is a helpful addition to any toolkit. Take a look at the top 5 deep cycle battery chargers.

Best Deep Cycle Battery Chargers Comparison

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1. Adpow 5A 12V Automatic Deep Cycle Battery Charger

Best Deep Cycle Battery Chargers

The Adpow charger is an intelligent, portable device. It can charge a variety of devices from lawn mowers to boats and cars. The LED display shows battery charge level and power options, including seven stage automatic charging process.

This charger is dust and water resistant thus protecting it against the elements. This charger has a wide application, able to charge batteries for boats, cars, ride-on toys, electric tools, and other maintenance tools. As an added bonus, it comes with a lifetime warranty.

+ Safety measures in place against overload and short circuit

+ Intelligent charging with LED display

+ Compact and lightweight

Occasionally gets stuck on stages

Get it at Amazon

2. Mroinge Fully Automatic Trickle Battery Charger

Best Deep Cycle Battery Charger

This charger is one of the most cost effective while still having a lot of features that make it a great option. This charger supports 6V batteries and 12V batteries. It comes with a DC cord that is 12 feet long and a charger for easy connectivity. 

This charger has a 4-step automated charging system so you can get the best results for your batteries. It is totally spark-proof and has additional safety features such as overheating protection, reverse polarity protection, and overcharging protection. This charger will even notify you if your battery has degraded.

+ LED indicator

+ Bad battery detection

+ Supports 12 and 6V batteries

Slow charging speed

Get it at Amazon

3. Noco Genius1 1-Amp Fully-Automatic Smart Charger

Best Deep Cycle Battery Chargers

This charger comes in a small size but is packed with great power. It functions as an all – in – one battery charger, desulfator and maintainer. With precision charging, it detects the outside temperature and adjusts the charging limit accordingly. It can be optimized and adjusted to any weather condition.

This charger is stable in hot as well as cold weather conditions. It has high efficiency with improved clamping power and force. Therefore, making it very efficient. It also automatically detects battery problems. It can a=even reverse any minor battery damage.

+ Precision charging feature

+ Good in all weather

+ Automatically detects battery problems.

Only works for batteries up to 30 amps

Get it at Amazon

4. Schumacher Fully Automatic Deep Cycle Battery Charger

Best Deep Cycle Battery Chargers

This charger is fairly simple to use. Equipped with a smart display and push buttons, this charger is easy to operate by anyone. This charger has multistage charging and current level adjustment which auto charges the battery to an optimal level. It also has float mode, which always maintains a perfect battery charge.

This charger has reliable power, able to deliver 3 Amp maintain, 8 Amp standard charge, and 15 amp rapid charge. It can be maintained for marine vehicles, trucks, cars, and SUVs. It also has voltage detection, allowing it to detect 6V or 12V batteries. The reverse hook up protection prevents charging if the clamps are wrongly placed.

+ Multistage charging

+ Float mode

+ Reverse hook up protection

No over-charge protection

Get it at Amazon

5. Bmk 12V 5A Smart Battery Charger

Best Deep Cycle Battery Chargers

This charger is upgraded with the latest technology. It helps keep your battery charged and maintained automatically. It has an inbuilt 72 hour safety feature. This feature will switch off the device after 72 hours to preventing overcharging.

This charger also has a four stage charging process. It has a spark proof design, which always checks the safety of the connection before charging. It has quick harness connect and disconnect harness for better connectivity. It also has a dust-proof and waterproof design for longer life and durability.

+ 72 hour safety feature

+ Four stage charging process

+ Dust-proof and waterproof

Takes a while to charge

Get it at Amazon

What to Consider Before Buying a Deep Cycle Battery Charger

Here are a few things to keep in mind before purchasing a deep cycle battery charger.


First and foremost, keep in mind that you want to find a charger that is going to be reliable. Not only will this make for a safer experience, but it will help ensure your battery has a long life-time. Ensure your charger has multiple types of protection including reverse polarity protection, overcurrent protection, overheating protection, and overload protection.

Charge Time

You will need to find a charge that best suits your needs, which means making sure the charge time is not too long. However, you also don’t want to sacrifice safety for convenience. High speed charging can be dangerous if you use an unreliable charger. 


You’ll need to take a look at your batteries to ensure you find a charger that will be able to handle it. You’ll need to look at your battery current status and the battery type because different chargers are meant for different batteries. 


With the arrival of smart chargers, you have a lot more possibilities when it comes to safe and efficient charging.Smart chargers can tell you what state your battery is currently in as well as display additional information about your battery. These will typically be more expensive, but they are certainly something to consider.

Tips For Using a Deep Cycle Battery Charger

To get the most out of your charger and batteries, here are a couple of tips. 

  • Fully charge your batteries after each use
  • Always make sure your charger is set to the right setting before charging
  • Never under any circumstances should you charge a frozen battery
  • Avoid over-charging by using trickle charge

Wrapping Up

In conclusion, the deep cycle battery charger comes with a plethora of great features. First, it maintains an optimally charged battery. Second, it is safe and secure. Third, it is easy to connect and use. Most importantly, it is durable and adaptable. Do go over the list again and pick out one that is suitable to your needs. We would like to recommend the ADPOW Automatic Smart Battery Charger. It is small and full of great attributes.

Frequently Asked Questions

How many amps should you charge a deep cycle battery?

Expect your charger to supply about 10% of the maximum amps of your battery.

How do I know what size battery charger I need?

Size your charger to about 25% of your battery capacity.

What voltage should a deep cycle battery read?

On a 12V battery, it will read 12.7V or 2.12 to 2.15 volts per call.