How To Choose The Right Solar Car Battery Charger?


A portable solar car battery charger uses solar energy as the source of power. There are many advantages of solar power over conventional power sources like fuel because solar energy is clean. This means that it does not pollute the environment.

What’s more, solar energy is free once the installation costs have been met. To convert sun rays into useful power, one needs a solar panel. This principle is no different when it comes to solar car battery chargers.

The 10 Best Solar Car Battery Chargers

Why Solar Car Battery Charger is the Best Option

Most solar-powered chargers charge slowly which is a good thing right? Yes right. You see, when a battery charges too fast, a lot of heat is generated which reduces the shelf life of the battery. In extreme cases, rapid high voltage charging may cause the battery to explode.

As earlier mentioned, the solar chargers use the sun which is readily available, and you will not need any specialized equipment to charge your battery. This makes charging your battery very easy and convenient. The case is different with an electric charger as you would have to look for a power source to do the charging. Let’s have a look at the 10 best solar car battery chargers.

1. OYMSAE: 20W Solar Car Battery Charger

OYMSAE: 20W Solar Car Battery Charger

Hit the road with OYMSAE versatile 20W Solar Car Battery Charger. This charger is perfect for charging your electric vehicle’s battery, or any other automobile or motorcycle with a 12-volt DC outlet. With its monocrystalline silicon solar chip and PET panel material, can 1-2 times increase sunlight refraction absorption and add more power to your car battery.

it’s built to withstand intense sunlight and heat. Its sleek design makes it easy to use at home or on the go, while the built in 2022 models upgrades controller no power consumption at night Overcharge protection, overvoltage protection, anti-reverse charge protection, short circuit protection, With an IP67 waterproof rating, it’s perfect for outdoor work!

Specs And Key Features:

Color:Black and red.
Weight:2.35 pounds.
Dimensions:14.37 x 7.68 x 0.79 inches.
Solar Panel Type:Monocrystalline silicon.
Key Feature:Portable.

2. Sunway: Solar Car Battery Trickle Charger

Sunway: Solar Car Battery Trickle Charger

This solar trickle charger is the perfect solution for keeping your vehicle battery charged and ready to go. The solar panel mounts easily to the windshield or dash and conveniently plugs into your car’s 12-volt cigarette lighter. This is especially useful in winter months when batteries can drain when it’s cold out.

The amorphous solar panel works well even on cloudy days, so you’ll always be prepared! This solar-powered battery charger is Covered with ultra clear PV glass which is more efficient, and also with Durable ABS plastic housing which makes this solar panels charger stronger. With built-in blocking diode to prevent reverse charging. And with a Blinking LED charge indicator when charging. And the solar charger maintainer Includes a cigarette lighter adapter and battery alligator terminal clamps.

Specs And Key Features:

Material:ABS Plastic.
Weight:‎‎1.39 Pounds.
Dimensions:‎0.5 x 13.98 x 5 inches
Input Voltage:12V.
Solar Panel type:Amorphous.
Cable Length:7.8Ft.

3. MOOLSUN: 10W Solar Car Battery Charger

MOOLSUN: 10W Solar Car Battery Charger

Moolsun solar battery charger is built with state-of-the-art solar cells, providing 10 watts of power to charge your car battery even at night., it adopts high-efficiency components, and with the design of a built-in diode for anti-reverse charging, you can rest assured on it.

Moolsun portable solar charger provides three connection cables, Cigarette Lighter Plug, Alligator Clips, and O-Ring Terminal. The charger panel is flexible and portable, allowing you to use it just about anywhere, and it will fit in tight spaces, cars, trucks, tractors, motorcycles, tractors, ATVs, snowmobiles, and personal water crafts or RV 12-volt battery.

Specs And Key Features:

Weight:‎0.86 Pounds.
Dimensions:15.59 x 6.96 x 0.19 inches
Max Voltage:12 Volts.
Weather Resistance:Yes.
Solar Panel Type:Monocrystalline.

4. SUNAPEX: 20W Portable Solar Battery Charger & Maintainer

SUNAPEX: 20W Portable Solar Battery Charger & Maintainer

The 20W Portable Solar Battery Charger & Maintainer is the perfect accessory for your adventures. This portable solar battery charger has a 30% conversion rate of high-quality crystalline silicon material + 95% transmittance ETFE material to increase charging efficiency. Furthermore, the honeycomb structure increases power generation by 20%, which achieves the most ideal charging effect in a limited space.

The upgraded charging algorithm and improved efficiency can achieve maximum charging effects in a short period of time. With multiple protections including overcharge protection, short circuit protection, and so on, this portable solar battery charger is safe and reliable. The solar panel has a trickle charger with a low current output suitable for maintaining the battery’s state of charge.

Specs And Key Features:

Material:Ethylene Tetraflouroethylene.
Weight:‎2.18 pounds.
Dimensions:14.4 x 13.4 x 0.39 inches
Key Features:Flexible, Portable & Durable.
Solar Panel Type:Monocrystalline silicon.

5. ECO-WORTHY: 10 Watt Solar Car Battery Charger & Maintainer

ECO-WORTHY: 10 Watt Solar Car Battery Charger & Maintainer

Eco-Worthy 10W portable solar car battery charger is easy to use and maintain. A great option for outdoor activities or camping trips, it can maintain the life of your car’s battery while in storage or while not in use. It can be placed for a long time to maintain the battery without disconnecting. Since it will not overcharge the battery and it has a built-in diode to prevent reverse current at night.

It comes with everything you need to get started including the cigarette lighter adapter and clamps, one pair of battery clips, 4 PVC suction cups, and the 10W solar panel.

Specs And Key Features:

Weight:1.46 Pounds.
Dimensions:14.37 x 1.46 x 9.25 inches.
Max Volt:12V.
Key Features:Portable and Lightweight.
Cable Length:4.75Ft.

6. ALLPOWERS: 100W Charging solar Kits for Car Batteries

ALLPOWERS: 100W Charging solar Kits for Car Batteries

Your car battery is the heart of your car’s electrical system, but once it gets low, your car won’t start. Luckily, the ALLPOWERS portable solar panel made with high-quality monocrystalline solar cells, it can generate up to 100W max power with 23.5% conversion efficiency and can help you power up your car in no time.

With 2 USB ports and a powerful capacity of 100W, this solar panel fits perfectly in any car’s trunk so you have emergency juice on hand for when you need it most. It’s easy to install and features eyeholes to make attaching it to your car simple. With this handy solar generator setup, you’ll never be on the road without a way to get home again!

Specs And Key Features:

Weight:‎‎‎5.29 pounds.
Dimensions:‎12 x 7.5 x 3.5 inches
Key Features:Foldable.
Solar Panel Type:‎Monocrystalline.

7. Topsolar: 10 Watt Solar Panel Battery Charger

Topsolar: 10 Watt Solar Panel Battery Charger

Topsolar 10-watt solar panel battery charger is extremely lightweight, durable, and easy to carry. It allows you to be in control of your energy use while you are on the go. The solar battery charger can safely maintain 12V batteries, such as wet batteries, gel batteries, SLA batteries, EFB batteries, and deep cycle batteries. This lightweight panel offers high-quality components and is extremely durable.

Specs And Key Features:

Weight:0.48 Pounds.
Dimensions:‎13.39 X 7.48 inches
Warranty:One year.
Key Feature:Easy To Carry Around & Durable.

8. POWOXI: 7.5W Solar Battery Trickle Charger & Maintainer

POWOXI: 7.5W Solar Battery Trickle Charger & Maintainer

Solar car battery trickle charger with a premium design and high efficiency, POWOXI Solar Battery Charger with Trickle Charge Mode is a perfect choice for your vehicle. With an ultra-lightweight and compact design, this solar car battery charger is easy to install and perfect for use without blocking the view. Equipped with 4 LEDs, the solar panel is easy to tell when charging. The built-in blocking diode structure ensures no reverse discharge, overcharge, overvoltage, or short circuit.

Additionally, it also comes with 440 lm/w solar cells that are 20%-30% higher than average solar panels and capable of charging batteries on cloudy days. This waterproof solar battery charger needs no additional maintenance and works well in cold seasons thanks to its lightweight and sturdy ABS frame. The quality of your premium solar battery charger is guaranteed by CE/ROHS certifications

Specs And Key Features:

Weight:‎2.2 pounds.
Solar Panel Type:Monocrystalline silicon.
Key Feature:Easy To Use and lightweight.

9. Suner Power: Solar Car Battery Charger and Maintainer

Suner Power: Solar Car Battery Charger and Maintainer

Compatible with both 12-volt and 24-volt batteries and works great as a trickle charger, increasing the lifespan of your battery. Suner Power’s solar battery charger generates electricity to recharge your batteries under sunlight. Solar energy is converted into 12-volt DC electricity through two high-efficiency solar panels to charge your car battery from the sun. The built-in blocking diode prevents reverse discharge.

Specs And Key Features:

Material:ABS Plastic.
Color:Black and blue.
Weight:4.39 pounds.
Dimensions:13.2 x 10.3 x 0.51 Inches.
Weather-Resistance:‎Not Specified.
Key Feature:Easy To Use.

10. SOLPERK: 50W Solar Battery Charger & Maintainer

SOLPERK: 50W Solar Battery Charger & Maintainer

If you are looking for a high-quality and inexpensive solar battery charger to keep your car battery charged? The SOLPERK Solar Car Battery Charger has a high conversion efficiency of up to 24%, which means that it can convert more sunlight into electricity for charging the car battery. Moreover, it uses tempered glass, weatherproof film plus an aluminum frame for excellent extended outdoor use, which can withstand storms for over 10 years.

Compared with traditional sealed controllers, SOLPERK intelligent controller circuit is more durable and reliable. It automatically checks the voltage of the connected battery and charges it at an appropriate current. With an advanced PWM algorithm, 20% charging efficiency can be achieved without self-discharge to fully protect the batteries from current, short circuits.

Specs And Key Features:

Solar Panel Type:Monocrystalline Silicon.
Weight:‎‎‎11.68 pounds.
Dimensions:21.3 x 21.3 x 4.45 inches.
Weather Resistance:‎Yes.
Cable Length:10Ft.

How Does Solar Car Battery Charger Work?

The portable solar car battery charger uses the sun as its source of power. Usually, the charger has a solar panel that is portable, and you can place it on the dashboard or the roof of your car. Regardless of where you place it, make sure there is enough exposure to sunlight. The solar panel converts the sun rays to DC which charges the car’s battery. The charger comes with alligator clips which you clip to the terminals of your battery. You can also charge your battery through the cigarette lighter port in your car.

Related: Most Affordable Solar power bank for charging your Techs

There are usually two types of solar car chargers that are on the market. The first solar charger has a regulator which controls the charge that goes into the battery. The advantage of the regulated solar charger is that it prevents overcharging of the battery. The regulated battery chargers are used to ensure that your car battery does not drain when you leave the car for long periods of time. The second type of solar charger does not have a regulator.

Features of The Solar Car Battery Charger

1. Prevent Overcharge or Discharge of Your Battery

Any solar car charger worth its salt should come with a mechanism to prevent your battery from overcharging or discharging. Some have a regulator that prevents overcharging. For other brands, you have to set the current that you want to flow into your battery.

2. Ample sized wires and connectors
You might find yourself in a situation where you need to move the solar panel of your charger a long distance. A charger that comes with long wires and connectors is very ideal for such situations. The long wires will enable you to place the panels in the optimum position.

3. High Powered chargers
There are solar power panels that have a high resolution and can convert the light to power even in an overcast sky. Ideally, all solar panels can do so, but their power output is greatly reduced. You should buy solar battery chargers that are designed to work in low-light situations.

Benefits of The Solar Car Battery Charger

One of the greatest advantages of the solar car battery charger is its portability. You practically move with it wherever you go and can charge your car battery on the move. Another advantage is that the charger does not require an external source of energy, unlike the electric charger. This makes it cheaper since you do not incur additional electricity costs.

With proper usage and maintenance, the charger is guaranteed to give you service for a long period. Since you can use the cigarette port to charge your battery, you need not worry about fixing the alligator clips to the battery terminals- just plug the charger in ad off you go!


The portable solar car battery charger is not only effective, but they are also efficient. With the ease of portability and use, it makes sense to grab one for yourself. With a solar car battery charger, you no longer have to worry about your car not starting due to a low battery.



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