2 Watt Solar 12 Volt Battery Maintainer

Using the power of the sun, the portable Coleman 2 Watt Solar 12V Battery Maintainer offers an ideal way to maintain the 12 Volt batteries of automobiles, boats, tractors and more

By Coleman

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Description & Features+

The portable Coleman 2 Watt Solar Battery Maintainer offers an ideal way to maintain the batteries of cars, SUVs, boats, tractors and more! This unit is completely maintenance free and easy to install. Made with durable ABS plastic and amorphous solar cells, this solar panel charges in all daylight conditions, even on cloudy days! The panel plugs directly into your cigarette lighter and the suction cups allow for easy mounting of the panel to a window or a dashboard. The complete kit includes: 2 Watt solar battery maintainer, 7.5ft wire, 12V DC plug, suction cups for easy mounting of panel to the windshield, and battery clamps.

  • Made of durable ABS plastic and amorphous solar cells for superior durability
  • Maintenance free, easy installation
  • Amorphous solar panel works in all daylight conditions, even on cloudy days
  • For indoor use: inside the dash of a vehicle or by a window indoors as it is not waterproof
  • Complete unit includes: 12V DC plug to plug into cigarette lighter, alligator battery clamps, Wiring connected to the solar panel, Suction cups to mount panel onto windshield, quick connect technology


Available for Shipping to Canada Post
Supplier Warranty

5 year limited warranty

Supplier Warranty Length
5 years
Product Identifiers
Walmart Item #
Model #

Return Policy+

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You can return this item within 90 days from the day you receive your online order.

There are two easy ways to return this item:

  • Return this item to a Walmart store
  • Return this item by mail

From the Manufacturer +

Ratings & Reviews+

2 Watt Solar 12 Volt Battery Maintainer is rated 3.9 out of 5 by 42.
Rated 4 out of 5 by from Gets the job done If your 12 volt battery has a battery drain over a few days; this could be a remedy for you. There is a tiny blinking blue light when the solar panel is producing a charge. It works on cloudy days as well as sunny days and has the option of alligator clamps to hook it to the battery or it can be plugged into the cigarette lighter.
Date published: 2014-10-04
Rated 5 out of 5 by from Just what the doctor ordered... This Coleman 2W solar battery maintainer appears to be a good deal. In full sunlight it produces a bit over 20 volts with no load, which should be enough to generate a charging current but not enough to overcharge a typical car battery. I plan to keep an eye on the target battery. Although the unit isn't hermetically sealed, it came inside a nice fairly heavy clear plastic enclosure, which I was able to easily modify with some silicone sealer to be well sealed, and I was able to mount the unit inside the clear plastic case on the outside of the storage unit where I park the target vehicle. I got a short extension cord from Radio Shack and used it as parts to make a longer cord to reach from the unit's cord to the battery. Easy peasy.
Date published: 2014-12-16
Rated 4 out of 5 by from Good I have bought this and several other ones and it seems they are all made in china in the same city so very little difference in all of them. I can say I have had a couple stop working for apparently no reason but upon disassembly I have found one wire disconnected for various reasons. Not enough solder to just not connected. all it takes is a battery soldering tool and a very little amount of solder. It is a simple and straight forward repair.
Date published: 2017-05-11
Rated 4 out of 5 by from Works with a but Works fine but it's a no frills device. You need to provide your own monitoring instruments to know if it's doing the job. Unfortunately since I just purchased it I haven't have a chance to test long time sitting. Also most accessory 12 Vdc outlets goes thru the starting key, must make sure that lighter outlet is connected directly to battery.
Date published: 2016-08-31
Rated 4 out of 5 by from just what intended for works perfect. wanted to keep my plow truck battery up especially sitting in the bitter cold. before it would die after a couple of weeks of extreme cold without use. no more. starts right up thanks to this charger.
Date published: 2014-12-28
Rated 5 out of 5 by from Free! power of the sun Great way to keep your lawn tractor, motorcycle, boat batteries fully charged. hook them up put the charger in the window and always ready to go!
Date published: 2014-12-15
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