Best Trickle Solar Charger 12V

This portable solar panel can be used to charge a variety of 12V devices, including cell phones, laptops, and other small electronics. It is also great for camping, hiking, and other outdoor activities.

The best one for maintaining your car batteries!

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A portable solar panel 12V is not enough for running a fridge or other large appliance. It is however, great for charging small devices, lights and powering other low wattage electronics.

We’ll keep it simple across 3 completely different options which are all top choices:

Solar trickle chargers 12V

Comparing Portable Solar Panels of 12V

Style Weight Dimensions LxWxH Connectors Wattage

ECO-WORTHY 12 Volt 10 Watt Solar
1.46lbs 14.37 x 1.46 x 9.25 inches SAE connector

Alligator Clips

10 Watts

OYMSAE 30 Watt 12 Volt Solar
2lbs 21.2x 13.6 x0.79 inches SAE connector

Alligator Clips

30 Watts

Sunway Solar Car Battery Trickle Charger
‎1.41lbs 13.9 x 5 x 0.5 inches SAE connector

Alligator Clips

4 Watts

ECO-WORTHY 12 Volt 10 Watt Solar Car Battery Charger

Looks like it’s really Worthy.



Overall, it’s an okay charger, does the job well enough. But there are some things you should know before buying this product.

The connectors are in reverse with your Battery Tender 

The cord is only 4.75 feet long. This may be too short especially if you plan to use it out of the car while keeping your car covered.

It is not water resistant. Water-resistance is not even stated but there are customer ratings that might bring in some misunderstanding around this. 

Connecting an unregulated charger directly to any rechargeable battery can put out too much voltage, which might even end up with your battery being dead. Ideally, use this trusty trickle charger to top off your batteries with a controller which can be purchased separately.

The ECO-WORTHY 12 Volt trickle charger comes with a handy LED light and a resistor. We know for sure that with the LED and resistor removed, it won’t drain your battery overnight. The diode works well but there are cases of battery drain and this is happening because of the LED/resistor which consume additional power.

Check Price on Amazon: ECO-WORTHY 12 Volt 10 Watt Solar

OYMSAE 30 Watt 12 Volt Solar Trickle Charger



16 gauge wiring appears to be very small for rugged use but it is normally working well in all conditions.

The length of the cord is 19.2 inches which might not be enough for all positions but there is also plenty of accessories the product comes with.

It has a built-in processor that prevents the battery from overcharging and damaging the solar panel.

The charger also has an LED indicator that shows the charging status of the battery:


  1. Blue light means it is in the sun
  2. Red light on means it is charging
  3. Green light on means charging completed
  4. All three indicator lights are off  – this means a short circuit occurred

OYMSAE 30 Watt 12 Volt is proven to be element resistant.

What is mostly questionable are its suction cups which don’t seem to be that great. Also, the placement of the controls at the back make it difficult to access. Despite all these, it is still a good product.

It is made of high quality materials and can withstand all kinds of weather.

Check Price on Amazon: OYMSAE 30 Watt 12 Volt Solar Panel

Sunway Solar Car Battery Trickle Charger & Maintainer



This solar charger is designed to help manage 12v battery continuous tiny drain in all seasons, and can be used on any size battery. It features suction cups for easy mounting, and plugs into your car’s cigarette lighter.

Keep in mind that the suction cups that come with the product are not of great quality and might fall off, break after short time, or not work as proposed.

It has one indicator light – a blue LED. If the blue light is not on, check if you’ve connected your wires to the battery port properly.

If you want to charge your solar car battery to full capacity, you’ll need a larger solar panel. This panel will perform as designed by topping up batteries that don’t have a load. And it’s a very good one for that purpose. 

Check Price on Amazon: Sunway Solar Car Battery Trickle Charger

You no longer need to remove the batteries when not planning to drive for a while. Simply connect the trickle solar charger to the battery, and it will maintain a full charge. You can also use it to keep your accessories charged, like your phone or tablet.