Best Solar Car Battery Chargers: Keep Your Battery Charged Anywhere

This is a 12-volt car battery charger that uses solar power to recharge and maintain batteries in cars, motorcycles, boats, RVs, and more. As long as you place the device under enough sunlight, it will successfully recharge any battery and keep it at optimum performance. The battery charger works on wet, gel, SLA, AGM, deep cycle, and many other battery types. 

The solar charger comes at a reasonable price and is packed with outstanding features. First of all, it has a built-in blocking diode that prevents reverse discharge and accidental drains. Secondly, the device is made with durability in mind. It features strong solar glass and a sturdy ABS frame that can withstand quite heavy loads. Thirdly, the solar charger is super easy to use, highly portable, and comes with a one-year warranty. 

However, if you need a solar charger that will work on different electronic devices and not only vehicles, the Suner Power one is not the best choice. It's a little underpowered for large electric batteries. You also might notice the charger doesn't perform well in low-light or cloudy conditions. It needs direct sunlight for optimum working power.

If you're looking for a compact car battery charger, the Sunway model might be perfect for you. It's a lightweight and small device you can transport and store with ease. On top of that, the charger offers reliable and impressive performance for the price. It recharges batteries quite quickly when placed under direct sunlight and is suitable for all 12-volt batteries. 

The main benefit of this charger type is overcharge protection. The device is efficient yet safe for the battery. It mounts easily on the windshield or dash and plugs into the 12-volt cigarette lighter. Additionally, the item offers study and durable construction as well as a one-year warranty. 

Keep in mind, though, that this device is most suitable for occasional recharges. Although it can be used as a battery maintainer too, it doesn't perform that well for maintaining stored batteries. The device also might be unsuitable for winter and rainy days.

Battery Tender offers one of the best solar chargers on the market. It's a large and wide device that works both as a charger and a maintainer. You can even get it in 5 and 15 watts according to your needs. The solar panel offers three-step smart-charging and overcharging protection. It's incredibly easy to operate and perfect for both indoor and outdoor use. 

Along with providing excellent current flow, the device also comes with sturdy construction for even better performance and ultimate durability. The device has a weather- and spark-proof design and features a temperature compensation sensor. It's perfect for outdoor use and works great in all daily conditions. With a weight of only 3 pounds, the device is also highly portable and easy to store. 

The main drawback of this product comes from the onboard controller. It sometimes has difficulty analyzing car batteries. Some buyers even complained that a few controllers stopped working after a while. Another minor caveat regards the LED light indicator. It doesn't always show the proper light color for the charging status. 

Those who are looking for an inexpensive solar charger might find this model perfect for their needs. The device powers up 12-volt batteries and is great for cars, motorcycles, tractors, boats, and other vehicle types. It's easy to use and highly portable, which makes it ideal for off-road situations.

This is a mono-crystalline silicon panel that works in all daylight conditions. It's water-resistant and has a blocking diode for reverse discharge prevention. Overall, the charger is quite useful, efficient, and safe for batteries. Because it's not overpowered, the device doesn't cause damage to batteries and extends their lifespan. It even comes with an 18-month warranty and suction cups for easy mounting.

Still, keep in mind that this is a budget-friendly option. The charger is not as efficient as some other pricier options on our list. When it comes to the design of the charger, the only thing that might bother you is the quality of the frame. The edges of the charger might get damaged from constant exposure to the sun.

This 12-volt solar charger is perfect for maintaining car, RV, truck, motorcycle, and other vehicle batteries. It's designed to plug into the cigarette lighter and provide a steady flow of electricity to keep a battery in optimal condition. The installation is pretty easy, so you can set up and run the device in a matter of minutes. 

The thing we like about this device is the overall quality it provides for the cost. Along with being efficient, the charger proves to be safe and durable. It comes with a built-in circuit board to prevent discharges and features a waterproof design. The device is still lightweight and easy to carry around. You can easily store it in your vehicle and bring it on your adventures. 

The included suction cups are not of the best quality, though. We don't recommend using them for mounting the charger because it might fall. Also, the panel could get quite hot under direct sunlight. Make sure to handle it carefully and move it away from the sun when it warms up.

This charger offers powerful charging and a user-friendly design. It works in cloudy conditions, so you don't need to put it under direct sunlight to charge your car's battery. All in all, the device works on cars, motorcycles, boats, trucks, and many other vehicles. You can recharge any 12-volt battery with it quite efficiently. 

What's great about this charger is the fact it has a barrier diode to prevent discharges. It's meant for both indoor and outdoor use and features a weather-resistant panel. The housing is made from heavy-duty plastic, so this device should last for quite a while. You'll even get a one-year warranty just in case you run into any issues. 

However, we don't recommend this device for heavy-duty outdoor use. It's protected from damages and raindrops, but not completely sealed from water and daily abuse. You'll find it perfect for occasional use. Also, keep in mind that the suction cups might fail to hold the charger. You might want to get another accessory for attaching the device to the windshield.

The Sunapex charger uses amorphous film technology for charging batteries in all weather conditions. It's a 12-volt device you can use on different battery types and make sure you never end up without power when off the road. Furthermore, the charger comes at an attractive price and is suitable for all budgets. 

The charger generates electricity quite well and comes with a built-in reverse diode to prevent discharges. It's pretty easy to use and maintain. The charger comes with a weatherproof design and a sturdy ABS plastic frame. You can use it anywhere and anytime on cars, trucks, motorcycles, boats, and other vehicles. There's even a one-year warranty for an extra peace of mind. 

The thing that might bother you the most about this charger is the quality of the connector cable fasteners. They are challenging to slip into the battery clip cables. You'll have to apply some extra pressure and handle the cables with caution. Actually, the entire device might feel a little fragile, and we recommend careful handling at all times.

Last but not least, we have a Paladin solar charger to introduce. It's one of those useful devices that works in low-light conditions and proves to be highly beneficial for travelers. Thanks to the simple design, the 12-volt Paladin solar charger is easy to use and perfect for off-road situations. 

The device is protected from weather and high impacts. The plastic housing proves to be quite sturdy and durable, and you can use the unit in the rain, snow, and other extreme weather conditions. There's also a blocking diode for more protection to the battery. Additionally, the package includes two solar panels, mounting suction cups, battery clamps, cigarette lighter plugs, and a user manual. 

We only have to warn you about the design of the plugs on this device. They are a little different than those found on most solar chargers, so it takes time to figure them out. Some buyers also complained about the unit not being that fast in recharging completely drained batteries.