Best Solar Car Battery Charger in 2021 (Reviews and Comparison)

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Are you tired of having to charge your battery by hand? Charge your battery with the sun! Solar-powered car battery chargers are lightweight and very portable without any tools needed. 

You can use it indoors or outdoors without worrying if you remembered to charge it up. Besides a car, you want a solar battery charger that can charge your truck, RV, boat or even off-grid systems.

No matter where life takes you, a solar car battery charger has got you covered! But is one charger really better than the other? 

This article will review some of the top solar battery chargers in order for you to make a wise buying decision. We will discuss features, 

Why can you trust us? We review a huge number of products every day to bring our loyal readers the best and most current product advice we can. Our readers have grown to trust our unbiased reviews and we truly appreciate them. 

Ready to find out what the best solar car battery charger is? Let’s get started!

COMPARISON CHART

SUNER POWER 12V Solar Car Battery Charger & Maintainer - Portable 6W Solar Panel Trickle Charging Kit for Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc. 1. SUNER POWER 6W Battery Charger
  • Provides plenty of power for charging purposes
  • No extra controller needed
  • Battery trickle technology is readily available
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Battery Tender, 540mA, 10W Solar Battery Charger 12 Volt - Weatherproof by Deltran 021-1164 2. Battery Tender 021-1163 5W Solar Maintainer
  • Rugged and water-resistant design
  • Perfect for outdoor use
  • Great customer service
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ACOPOWER 12V 120W Portable Solar Panel Kit; Foldable Solar Suitcase For RV, Boat Compatible Multiple Kinds of Power Station with Quick Charge 3.0, 12AWG Cable with Solar Male/Female Quick Connectors 3. ACOPOWER: Solar Panel Charging Kit
  • 105 watts is super powerful for charging
  • This is a HUGE kit with plenty of connectors
  • Included SAE connector for RVs and other vehicles
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Topsolar 10 Watt 12 Volt Solar Panel Battery Charger, 10W 12V Portable Solar Trickle Battery Maintainer with Cigarette Lighter Plug & Alligator Clip for Car, Boat, Motorcycle, Tractor 4. Topstar 10 Watt 12 Volt
  • Does exactly what it says it will do
  • Maintains any 12 volt system you can think of
  • Waterproof and heat resistant
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POWOXI 7.5W-Solar-Battery-Trickle-Charger-Maintainer -12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc. 5. POWOXI 7.5W-Solar-Battery-Trickle-Charger-Maintainer
  • Ease of use is top notch
  • Has a nice indicator letting you know the unit is activated
  • Battery trickle technology is readily available
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SUNER POWER 12V Solar Car Battery Charger & Maintainer - Portable 6W Solar Panel Trickle Charging Kit for Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc.

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SUNER POWER 12V Solar Car Battery Charger & Maintainer - Portable 6W Solar Panel Trickle Charging Kit for Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc.

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SUNER POWER 12V Solar Car Battery Charger & Maintainer - Portable 6W Solar Panel Trickle Charging Kit for Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc.

Specification

Volts12 Volts
Watts6 Watts
Warranty12 Months

The top car battery charger for charging your vehicle is the SUNER POWER 6W Solar Battery Charger.

Lightweight and small, SUNER POWER’s 6-watt solar car battery charger offers you an optimal way to charge your battery in a safe and efficient way. This charger is so good that CNET has voted this charger as the “Best Battery Maintainer for 2021”.

This handy 6W solar car battery charger can charge a 12-volt battery while maintaining its effectiveness. It also has a very handy car battery charger cord for your convenience.

The solar charging feature works on a continuous basis for 24 hours per day.

It is a highly rated, reliable, heavy-duty portable 6W car battery charger that can easily charge your 12-volt batteries.

WHAT WE LIKE

SUNER POWER 6W is a very lightweight and portable unit. It’s really simple to operate. The power cord has a plug-and-play capability so you don’t need to freak out running around searching for a plug.

PROS

  • Provides plenty of power for charging purposes
  • No extra controller needed 
  • Battery trickle technology is readily available

CONS

  • No indicator light when plugged in
  • Be sure to check to make sure you have everything included as sometimes certain pieces can be missing.
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Battery Tender, 540mA, 10W Solar Battery Charger 12 Volt - Weatherproof by Deltran 021-1164

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Battery Tender Plus 12V Battery Charger and Maintainer: 1.25 AMP Powersport Battery Charger and Maintainer for Motorcycles, ATVs, UTVs - Smart 12 Volt Automatic Float Charger - 021-0128

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Battery Tender Plus 12V Battery Charger and Maintainer: 1.25 AMP Powersport Battery Charger and Maintainer for Motorcycles, ATVs, UTVs - Smart 12 Volt Automatic Float Charger - 021-0128

The Battery Tender 021-1163 5W Solar Maintainer is a lightweight device that quickly plugs into your car or RV outlet and connects to your vehicle battery and plug.

The Tender is one of those products that does what it says, at least in most ways. The product description talks about the solar panel is waterproof. 

When we contacted customer service about leaving the panel out in the rain, we were immediately told not to do that because it could potentially damage the panel. 

This can sometimes result in charging at a lower voltage than required. It can also result in the charger refusing to charge at all.

WHAT WE LIKE

One thing we like is that this charger provides great trickle technology. This is a handy feature, especially when heading out for a weekend camping trip or other activities considered off the grid.

PROS

  • Rugged and water-resistant design
  • Perfect for outdoor use
  • Great customer service

CONS

  • Description says waterproof, but customer service says not to get the panel wet
  • Cloudy weather truly affects the efficiency of this panel.

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ACOPOWER 12V 120W Portable Solar Panel Kit; Foldable Solar Suitcase For RV, Boat Compatible Multiple Kinds of Power Station with Quick Charge 3.0, 12AWG Cable with Solar Male/Female Quick Connectors

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ACOPOWER 12V 120W Portable Solar Panel Kit; Foldable Solar Suitcase For RV, Boat Compatible Multiple Kinds of Power Station with Quick Charge 3.0, 12AWG Cable with Solar Male/Female Quick Connectors

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ACOPOWER 12V 120W Portable Solar Panel Kit; Foldable Solar Suitcase For RV, Boat Compatible Multiple Kinds of Power Station with Quick Charge 3.0, 12AWG Cable with Solar Male/Female Quick Connectors

ACOPOWERSolar Panel Charging Kit by ACOPOWERSolar is lightweight and is the largest one we have reviewed. The kit is suitable for most vehicles including motorcycles, trucks, SUVs, cars and more.

The only downside is that it does not come with the PV lens to make sure your panels get the sun that you need. It is a premium unit, but the benefits make it worth it! 

Being a Jack of All doesn’t mean that the ACOPOWERSolar is perfect. We find that the charging kit’s software has difficulty figuring out how to properly analyze certain batteries.

Utilizing the 105 watts of this charging kit makes it probably the most powerful battery charger in the world. This is the type of charger that can handle any task thrown at it. 

WHAT WE LIKE

It comes with a whopping 10 different connectors, three cables, and battery clips. The inverter includes four USB ports for charging up electronics. It even comes with an additional single port car charger.

PROS

  • 105 watts is super powerful for charging
  • This is a HUGE kit with plenty of connectors
  • Included SAE connector for RVs and other vehicles

CONS

  • The software can have a hard time tracking and analyzing certain car batteries
  • User’s manual is translated so it may be difficult to understand at times
  • Could use a way to secure it better to a vehicle

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Topsolar 10 Watt 12 Volt Solar Panel Battery Charger, 10W 12V Portable Solar Trickle Battery Maintainer with Cigarette Lighter Plug & Alligator Clip for Car, Boat, Motorcycle, Tractor

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Topsolar 10 Watt 12 Volt Solar Panel Battery Charger, 10W 12V Portable Solar Trickle Battery Maintainer with Cigarette Lighter Plug & Alligator Clip for Car, Boat, Motorcycle, Tractor

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Topsolar 10 Watt 12 Volt Solar Panel Battery Charger, 10W 12V Portable Solar Trickle Battery Maintainer with Cigarette Lighter Plug & Alligator Clip for Car, Boat, Motorcycle, Tractor

This is a reliable solar car battery charger from Topstar that is the perfect solution for people who want a simple to use, convenient and lightweight charging option for their cars and car systems. 

Easy to set up and recharge, you can use this as your solar charger when you are around a power outlet, at home, or off-grid. This 10 piece kit has everything you need to get most batteries charged up.

WHAT WE LIKE

We really like the fact that the Topstar comes with suction cups for mounting the unit on the vehicle windshield. This is easily worth getting the kit in the first place. We also found that Topstar has a great product and customer support. Topstar products are made to last the lifetime of the customer.

PROS

  • Does exactly what it says it will do
  • Maintains any 12 volt system you can think of
  • Waterproof and heat resistant

CONS

  • Some customers say the components feel cheap
  • Be sure to check to make sure you have everything included as sometimes certain pieces can be missing.
  • Suction cups could be a bit larger

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POWOXI 7.5W-Solar-Battery-Trickle-Charger-Maintainer -12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc.

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POWOXI 7.5W-Solar-Battery-Trickle-Charger-Maintainer -12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc.

Read More

POWOXI 7.5W-Solar-Battery-Trickle-Charger-Maintainer -12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc.

As a portable charger, the PowWow 7.5w solar battery charger is a nice and reliable charger. The PowWow 7.5w solar battery charger can keep your battery trickle-charged. 

The PowWow 7.5w is perfect for camping or traveling. The 7.5w portable battery charger is designed to trickle charge a variety of batteries.

WHAT WE LIKE

We really like the blue indicator that lights up when the charger is connected. It’s just a very nice touch.

PROS

  • Ease of use is top notch
  • Has a nice indicator letting you know the unit is activated 
  • Battery trickle technology is readily available

CONS

  • Use caution as some customers have reported that the red and black clips are reversed
  • Quality issues have been reported about broken pieces being received
  • Check to make sure your car or vehicle’s cigarette lighter can be activated when the vehicle is turned off.

Frequently Asked Questions

Should You Use a Solar Car Charger to Revive a Dead Car Battery?

Should You Use a Solar Car Charger to Revive a Dead Car Battery? Of course, you can. Here is a scenario where a solar-powered car battery charger would be a huge help. 

Let’s say you are at the campground with your car, parked under the sun, and you know you need to get to the store for groceries. As you step out of your car, you notice your battery is nearly dead. You could easily plug in your charger to get your car started.

Now, what if you could bring your car charger to the campground and plug it into your car? It’s the same situation. Hopefully, now you get it. 

What are the Advantages of Using a Solar Battery Charger?

Here are some of the key advantages of a solar car battery charger:

  • You can store excess energy because you can use it to charge your battery up fast. 
  • It relieves a lot of stress when you know you have a reliable battery charger handy for emergencies.. 
  • The solar charger includes an inverter, DC-in port, and battery charger control system. 

Conclusion

We really hope you enjoyed this review article about the best solar car battery charger. As you can see from our list, you can get a solar car charger to fit your budget, need, car or boat. The biggest thing to remember is that this is a system that requires continuous solar power to charge your battery. 

Our champion for this review goes to the “SUNER POWER 6W Battery Charger”. It has the right mix of quality, power, and value for any task you need it to perform. 

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