We all know that batteries are one of the most essential components of an automobile. But, there are special types of batteries called deep cycle batteries that are specifically designed for heavy vehicles such as RVs, boats, and camper vehicles.
Deep cycle batteries provide a controlled flow of power so that it remains active for a significantly longer period of time. To charge these batteries, you will need a special type of battery charger called a deep cycle battery charger. Here are some things to keep in mind while purchasing a deep cycle battery charger:
- Battery Monitoring: An ideal deep cycle battery charger should be capable of monitoring the state of your battery while charging it. This way, you can keep a close eye on various parameters of your battery and make sure it’s in a perfect state.
- Equalizing: The equalizing feature of the deep cycle battery charger allows it to balance your batteries’ charge and make sure it provides sufficient power output for a long time. It also reverses the sulfation effect on batteries.
- Battery Capacity: To charge a large capacity battery, you will need a similarly large deep cycle battery charger so that you can provide a sufficient amount of input to the battery. As the capacity of the charger increases, the required charging time decreases.
We are presenting the best deep cycle battery chargers today that will be a great addition to your RV. These deep cycle battery chargers are carefully shortlisted based on various essential factors such as charging time, discharge cycle, functionality, and so on. You can get to know some of these factors on our “Buying Guide” for the best deep cycle chargers later in this article.
Best Deep Cycle Battery Charger List
| Best Deep Cycle Battery Charger | Supported Voltage | Amperage | Buy Now |
|---|---|---|---|
| NOCO Automatic Battery Charger | 12 Volts | --- | Check On Amazon |
| YONHAN Automatic Battery Charger | 12 Volts | 10 Amps | Check On Amazon |
| NEXPEAK Automatic Battery Charger | 12 Volts | 10 Amps | Check On Amazon |
| TowerTop Fully Automatic Battery Charger | 12 Volts | 2/10/25 Amps | Check On Amazon |
| NOCO Genius Fully Automatic Battery Charger | 12 Volts | 10 Amps | Check On Amazon |
| Schumacher Fully Automatic Battery Charger | 6/12 Volts | 2 Amps | Check On Amazon |
| BMK Fully Automatic Battery Charger | 12 Volts | 5 Amps | Check On Amazon |
| Mroinge Fully Automatic Battery Charger | 12 Volts | 1 Amps | Check On Amazon |
| ADPOW Fully Automatic Battery Charger | 12 Volts | 5 Amps | Check On Amazon |
| Dght Automatic Battery Charger | 6/12 Volts | 4 Amps | Check On Amazon |
Best Deep Cycle Battery Charger Reviews
1. NOCO Automatic Battery Charger
The Genius1 from NOCO is the best overall when it comes to a deep cycle battery charger. This device is popuarly known for compact size, and offers the best features compared to other brands. With a 1-amp (15-watt) capacity, it’s compatible with both 6-volt and 12-volt batteries, catering to various needs.
It works with sealed lead-acid and lithium-ion batteries, such as flooded, gel and AGM types. It’s good for cars, boats, RVs and other battery-powered vehicles.
Featuring a special mode to address battery issues like sulfation and acid buildup, this charger helps prolong battery life. It’s a dependable tool for maintaining battery health and durability.
Best Features:
- Amperage: 1 Amp
- Input Voltage: 100-240VAC 50-60Hz
- Output Voltage: 6V-12V
- Compatibility: Sealed lead-acid and lithium-ion batteries
- Spark-Proof and Reverse Polarity Protection
Pros:
- Efficient charging for various battery types.
- Improved start voltage sensor.
- Versatile compatibility with different vehicles.
- Energy-efficient design.
- Easy to use and reliable performance.
Cons:
- May require longer charging time for deeply depleted batteries.
- Some users found the cord length to be short for their needs.
2. YONHAN Automatic Battery Charger
The YONHAN Automatic Battery Charger helps maintain your batteries without constant supervision. Its small size makes it handy for keeping your batteries charged and prepared for use.
This charger works with both 12V and 24V lead-acid batteries used in cars, boats and other vehicles. It’s compatible with various types of lead-acid batteries, like AGM, GEL, SLA and Flooded.
It shows accurate charging details on a lit-up LCD screen, so you always know your battery’s status. This charger also features a special mode to restore old or unused batteries, helping you save time and money. Plus, it comes with eight built-in safety protections to keep your batteries safe at all times. These include safeguards against overcharge and short circuits.
Best Features:
- Amperage: 10 Amps
- Input Voltage: AC 110-220V (50-60HZ)
- Output Voltage: 12V-15.5V/24V-31V
- Compatibility: Lead-acid automotive, marine, and deep-cycle batteries
- 30% Faster Quick Charger, High-Efficiency Pulse Repair
- 8 Charging Protection, Intelligent Memory
Pros:
- Rapid charging with 30% faster quick charger feature.
- Effective battery repair mode for extending battery lifespan.
- Multiple charging protections ensure safety.
- Intelligent memory function for convenience.
- Compact and lightweight design for portability.
Cons:
- Short power cord may require an extension for some users.
- Limited instructions for optimal usage in certain modes
3. NEXPEAK Automatic Battery Charger
NEXPEAK is another popular brand that offers some of the best battery chargers today. In this contest, this automatic battery charger, the NC201 offers some superb features to maintain automotive, marine, and deep-cycle batteries.
This charger offers a 10-amp quick charging option for 12-volt and 24-volt lead-acid batteries. Its 7-stage charging process ensures thorough and safe rejuvenation. Plus, it adjusts for different climates, ensuring great performance no matter the weather.
The charger’s pulse repair technology finds and fixes battery problems such as sulfation and acid build-up. This helps the battery last longer and makes the engine starts better. Its large LCD screen makes it easy to see the charging process.
With plug-and-play functionality, this charger is user-friendly and perfect for household battery maintenance. Its compact size makes storage and access a breeze.
Best Features:
- Input Voltage: 110 Volts (AC)
- Output Voltage: 12V/24V Auto
- Output Current: 10A 12V & 5A 24V
- Cooling: Fan
- Input Power with Load: Max. 130W
- Warranty: New replacement available for any quality issue.
Pros:
- Lightning-fast charging speed.
- Smart control and multiple protections ensure safety.
- Pulse repair function restores battery performance.
- Large LCD screen for easy monitoring.
- Versatile applications for various vehicles.
Cons:
- Cannot activate or charge totally dead batteries.
- Not compatible with lithium-ion batteries.
4. TowerTop 12V Fully Automatic Battery Charger
TowerTop is a very popular brand which is known for its smart and innovative products. As TowerTop mostly deals with electronics equipment, you should check out its deep cycle battery charger.
In the 2nd position, we have yet another smart deep cycle battery charger present on our list coming from a brand called TowerTop. The 2/10/25A 12V Smart Battery Charger from TowerTop is capable of charging nearly all types of 12 volts lead-acid batteries from all major brands. It includes an automated 7 step charging program that is automatically carried out by the device. This introduces a safer and more optimized way to charge your car battery with this charger.
If you are facing a cold battery, you can use the advanced start aid feature of this charger to jump-start your battery within 2 minutes. The TowerTop 2/10/25A 12V Smart Battery Charger can also detect the remaining voltage on your battery so that you can get an idea about the current status of your battery and its charging performance. To make the monitoring even easier, there is a compact LED display present on the front where you can find all of the necessary information.
Best Features
- Supports 12-volt batteries
- 25 amps maximum supported output
- Automated 7 step charging program
- Advanced start aid
- Voltage monitoring
- LCD display
Pros
- Suitable to jump-start cold battery
- Multiple safety features are enabled
- The maximum amperage rating is high
Cons
- Cannot charge dead and extremely discharged batteries
5. NOCO Genius 12V Fully Automatic Battery Charger
Noco is a premium brand present on our list today. If you’re looking for any battery related accessories, you should consider an option from Noco.
The NOCO Genius GEN5X2 is our 1st pick today for the best deep cycle chargers and rightfully so as it is a smart battery charger. It features dual bank operation with 10 amps and 5 amps rating on each bank respectively. It is perfect for 12-volt batteries used on many different heavy vehicles. You can also simultaneously charge multiple batteries at once and control the operation with dedicated charging modes. There are integrated thermal sensors present on the device that can erect the temperature of the battery and prevent overcharging.
The best feature of the NOCO Genius GEN5X2 is its capability to charge even extremely discharged batteries that might even have 1-volt charge left. You can either use the smart charger mode, or you can switch to the manual mode for more precise and controlled performance. The NOCO Genius GEN5X2 requires a very simplified mounting procedure that lets the user install it quickly and easily in their vehicles. Noco is providing a 3 year long warranty period on this battery.
Best Features
- Supports 12-volt batteries
- 10 amps maximum supported output
- 3 years warranty
- Most premium deep cycle battery charger
- 10 amps and 5 amps banks
- Integrated thermal sensors
Pros
- It prevents overcharging as well as undercharging
- Can be used for multiple batteries at once
- Multiple banks present
Cons
- Very expensive compared to other deep cycle battery chargers
6. Schumacher 6V/12V Fully Automatic Battery Charger
If you frequently purchase automobile maintenance accessories and tools, you must have heard about Schumacher before. It is a highly popular brand for battery-related devices such as a battery charger and maintainer.
Up next, we have yet another highly compact device that will take complete care of your battery without any problem. The Schumacher SP1296 is a fully automatic battery charger as well as a battery maintainer that charges the battery at 2 amp current output. The automated charging performance on this deep cycle battery charger is controlled by a dedicated microprocessor that allows a multi-stage charging procedure and extended battery life.
Schumacher SP1296 has a built-in float mode monitoring enabled that is essential for optimum charging performance and keeps the battery healthy for an extended period of time. The safety features present on this charger are automatic voltage detection and reverse connectivity protection which is essential to keep the battery safe in long charging sessions. The Schumacher SP1296 is compatible with all AGM and deep cycle batteries.
Best Features
- Supports 6 and 12-volt batteries
- 2 amps maximum supported output
- Fully automatic battery charger and maintainer
- Controlled by a dedicated microprocessor
- Float mode monitoring
- Automatic voltage detection and reverse connectivity protection
Pros
- A safer option for your battery
- Comes with many battery maintenance features
- Supports multiple types of batteries
Cons
- Expensive deep cycle battery charger for its specifications
7. BMK 12V Fully Automatic Battery Charger
Smart products are not generally available at a cheaper price tag. But, BMK BLUEMICKEY is one of the few brands that offer a smart deep cycle battery charger at a very cheap price tag.
Coming in the 3rd place, we have the BMK 12V 5A Smart Battery Charger which is a combination of a battery charger as well as a maintenance device for your battery. It features a built-in battery diagnostic system that allows you to get all of the necessary information of your battery and take the necessary steps to keep it maintained. It is capable of charging 15 to 100 Ah batteries without any problem. There is a special 72 hours safety feature present on the battery charger that prevents overcharging of the battery in long charging sessions.
The BMK 12V 5A Smart Battery Charger is designed with a high quality ABS body that provides a decent build quality to the device. As for the inside, there are many protective circuits available such as short circuit and overload protection that maintain a reliable operation of the charger. The charging is carried with a 4 step charging program which is completely automatic as this a smart charge. You will also find an LED indicator on the charger that will allow you to monitor the charging status of your battery.
Best Features
- Supports 12-volt batteries
- 5 amps maximum supported output
- Battery charger as well as battery maintenance apparatus
- Supports 15 to 100 Ah batteries
- 72 hours safety feature
- High quality ABS body
Pros
- All necessary safety measures are included
- Automated 4 step charging program
- One of the smart deep cycle battery chargers
Cons
- It does not have a warranty period
8. Mroinge 6V/12V Fully Automatic Battery Charger
Mroinge is the cheapest brand available on our list today. Still, it is quite famous compared to many other options for its highly reliable deep cycle battery charger.
If you want a single deep cycle battery charger for all of your vehicles, the Mroinge Fully Automatic Trickle Battery Charger will be a great choice for you. It can be easily connected to a car or a motorbike due to its compact size and shape. Also, it supports 6 volts as well as 12 volts batteries which makes it a versatile option. You will find a 12 feet long DC cord included with the charger itself for further ease in connectivity. It also has the 4 steps automated charging program that allows optimized results.
The Mroinge Automatic Trickle Battery Charger is completely spark-proof even when you are connecting it with a lead-acid battery. Apart from that, it features many safety features such as reverse polarity protection, overheating protection, and overcharging protection. If your battery has already degraded a lot, you will be notified by the charger which should remind you to get the battery replaced as soon as possible. The Mroinge Fully Automatic Trickle Battery Charger has a 2 year long warranty period.
Best Features
- Supports 6 and 12-volt batteries
- 1 amps maximum supported output
- 2 years warranty
- 12 feet long DC cord
- 4 step automated charging
- Bad battery detection
Pros
- Very affordable deep cycle battery charger
- Comes with a warranty period
- Built-in dual color LED indicator
Cons
- Charging speed is very low
9. ADPOW 12V Fully Automatic Battery Charger
Adpow is yet another brand from our list today which is dedicated to car batteries and other related accessories. If you have not found the ideal choice for your battery yet, check out the following option.
Our last pick for the best deep cycle battery charger is coming from a well-known brand called Adpow. The ADPOW Automatic Smart Battery Charger will be a great addition to your accessories kit as it is a smart charger as well as a battery maintainer. It is suitable for even completely drained 12-volt batteries because of its 7 steps automatic charging performance. There is an LED indicator present on the device that will give you visual feedback on the device.
It is suitable for a range of 12-volt batteries such as SLA, AGM, VRLA, maintenance-free lead-acid batteries, and much more. Thus, it is a suitable pick for different types of battery-operated devices including lawnmowers, electric vehicles, and RVs. The ADPOW 5A 12V Automatic Smart Battery Charger takes safety very seriously as there are many different safety measures present on the device. There is short circuit protection, overload protection, overcurrent protection, and many other preventive measures available to keep the battery safe. Adpow is promising a lifetime quality warranty on the smart deep cycle battery charger.
Best Features
- Supports 12-volt batteries
- 5 amps maximum supported output
- Lifetime quality warranty
- SLA, AGM, VRLA, and lead-acid batteries supported
- Overcurrent, overloading, and short circuit protection
- Can be used with many different batteries
Pros
- Versatile option for multiple applications
- Safe to use
- Comes with a lifetime quality warranty
Cons
- The amperage rating should have been higher
10. Dght Automatic Battery Charger
For those looking for a dependable battery charger with consistent performance, this battery charger from Dght is an other impress buy. It’s designed to effectively charge various battery types, catering to different charging needs.
This charger has a 12V 24V 20-Amp Max output, capable of handling lithium, lifepo4, AGM, lead-acid, gel and deep cycle batteries easily. It works with vehicles like cars, trucks, motorcycles and SUVs, supporting batteries ranging from 10Ah to 200Ah.
One standout feature is its smart and fully-automatic operation. With a large LCD display, monitoring the charging status and battery health is simple. There is no need for manual adjustments, ensuring a hassle-free charging experience.
When to comes to its durability, this charger is made from high-quality materials to withstand daily use. The advanced safety features protect your batteries. They prevent overcharging, reverse polarity and short circuits. This keeps your batteries safe while charging.
Best Features:
- Input Voltage: 24 Volts
- Current Rating: 20 Amps
- Product Dimensions: 12″D x 3″W x 2″H
- Item Weight: 1.52 Kilograms
Pros:
- Powerful 20-Amp Max output
- Smart and fully-automatic operation
- Versatile compatibility with various battery types
- Durable construction for long-lasting performance
- Advanced safety features for peace of mind
Cons:
- Loud fan noise during operation
- Mode lights could be brighter for better visibility
- Risk of accidental mode changes with button design
Buying Guide For The Best Deep Cycle Battery Charger
Switching to a deep cycle battery is generally a great choice if you are planning long-distance travelling on your RV. But, to maintain a deep cycle battery, you will also require a decent deep cycle battery charger by your side. The regular battery chargers are not suitable for charging a deep cycle battery as the requirements of a deep cycle battery are quite different from a regular battery.
Therefore, we are presenting this buying guide for the best deep cycle battery chargers so that you can choose the correct battery charger for your deep cycle battery. Here, we will discuss some major specifications and differences in various deep cycle battery chargers and understand their effect on regular usage. By referring to our buying guide, you will be able to purchase the best deep cycle battery charger available in the market right now for your budget.
1. Battery Type and Specifications
While looking for a deep cycle battery charger, you must understand your battery first. For that, you will have to acknowledge various specifications and factor in the capacity of your battery so that you can buy the perfect deep cycle battery charger for your battery.
The battery type differs according to the machine it’s powering. For example, the battery used for a two-wheeler vehicle is different from the one used in a car or the one used in garden equipment. Also, it is essential to keep in mind the current status of your battery. If your battery is completely discharged, there are only a handful of chargers that can revive your battery.
2. Charging Speed
The charging speed is a very important factor when it comes to buying a charger for your battery. The charging speed is dependent upon the total capacity of the battery as well as the output rating of the charger itself. Generally, low capacity batteries being charged with a high amperage charger will be charged significantly faster than high capacity batteries with low amperage chargers. Hence, you should keep that in mind before selecting the proper amperage for your battery charger. High charging speed will be advantageous when you are away from home and your battery discharges on the road.
3. Supported Functions
The main function of a deep cycle battery charger is to charge a deep cycle battery without any complications. But, as most of the devices we find in the market are smart in nature, there are also a few smart chargers present in the market that are capable of so much more.
The most essential feature found on deep cycle battery chargers is the maintenance related functionality that will give you all related information on your battery. With these chargers, you can find the existing state of your battery and make sure you are taking the necessary steps required to take proper care of your battery. An additional display on the deep cycle battery charger also helps a lot as it gives you precise information about the status of your battery.
4. Reliability
Electronic devices always pose an electric hazard, especially if you are dealing with high voltage applications like car batteries. Most car batteries are generally 12 volts which is more than enough for a hazardous incident while charging the battery. To avoid these situations, the deep cycle charger must have all the necessary preventive measures enabled on board.
These measures include overload protection, overheating protection, overcurrent protection, reverse polarity protection, and so on. To get the safest option, you should consider the safety measures present on the deep cycle car chargers and select the one which has all of the necessary measures included. This will make the charger reliable in the application and also keep your battery in perfect condition.
Deep Cycle Battery Charger – FAQs
Ans: Deep cycle battery chargers are specifically designed for deep cycle batteries, which require a different charging profile compared to standard car batteries. They typically have multiple charging stages, including bulk charging, absorption charging, and float charging, to ensure a complete and efficient charge.
Ans: While it’s possible, it’s not recommended. Deep cycle batteries benefit from a multi-stage charging process, and using a charger designed for car batteries may not provide the optimal charging profile, potentially leading to reduced battery life.
Ans: Yes, there are deep cycle battery chargers specifically designed for solar applications. These chargers often have features like MPPT (Maximum Power Point Tracking) to maximize efficiency and adapt to varying solar conditions.
Ans: Regularly recharge the battery after use, avoid deep discharges when possible, and use a quality deep cycle battery charger. Additionally, keep the battery and its connections clean, and store it in a cool, dry place when not in use.
Conclusion
All vehicle batteries get discharged like any other batteries used in the electrical system. But, that does not mean you necessarily need to replace your car battery or go to a service station to get your battery recharged. You can purchase a dedicated deep cycle battery charger to fully recharge your battery. If you have gone through our picks for the best deep cycle battery chargers and our buying guide, you must have already made up your mind about which charger you are going to buy. If not, you can go with one of the following options.
- If you are on a tight budget and your requirements are low, the Mroinge 6V/12V 1A Fully Automatic Trickle Battery Charger will be a perfect choice for you. It is the cheapest deep cycle battery charger in the market right now that supports 6 to 12 volts batteries. It is perfect for charging factory sealed maintenance-free batteries.
- Most users prefer reliable long term options when it comes to vehicle tools and accessories. Hence, our next recommendation would be the ADPOW 5A 12V Automatic Smart Battery Charger. This unit features a lifetime quality warranty which makes it a reliable option for a long time. It is a smart battery charger that features 7 different automated charging processes.
- Lastly, we will recommend the NOCO Genius 12V GEN5X2 Smart Battery Charger simply because it is the most premium and heavy-duty option present on our list today. This is a 2 bank battery charger that has 10 amp and 5 amp capacity per bank. It is designed to charge 12 volts batteries and also backed with a 3 years warranty period.
One Response
I still cannot believe that this exceptional charging performance is possible in a device that measures only 9.15 x 5.39 x 7.2 inches. It’s a deep cycle battery charger from the NOCO. It provides 43% more rechargeable power than other brands. I was able to charge two 120Ah deep-cycle batteries simultaneously without requiring a complicated setup.