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Yet another reason to love the sun: it'll keep your car's battery charged. Just plug this helpful 1.8-watt solar charger into your vehicle's 12V lighter socket and position the panel to pick up the most daylight possible. Or use the included alligator clips to connect it directly to the battery. Either way, you won't get caught off guard without the juice to start your car. Blue LED light shows it's working. Works on cloudy days too. Imported. 1.25Hx6.5Wx18L".
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cord contacts easily detached
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I read reviews about this solar panel, and they talked about the weak soldering of the cord to the solar panel. In the face of the other reviews that praised its benefit, I decided to take my chances.
This panel works fine, but if you don't handle with care, it'll stop functioning all at once, like mine.
The bad thing about it is that it must be hidden from sunlight when the engine is ignited, otherwise, they'll be really hot. May be they don't have a protection circuit.... I Think this should be taken care of in the design.
Rating: 
(2
out of 5) @ 2008-11-18
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Hit/Miss
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I used this thing on two auto's through the lighter circuit with two diametrically opposed results. On the older model GM it seemed to work(at least it did not discharge the battery), on the newer model Subaru it completely discharged the battery which took me 3 days of daylight hours to recharge using a standard 2 amp charger. I also received a unit in which the glass was cracked in 3 places inside the package. In all fairness I did not order it through Amazon and the cracks don't effect the functioning of the unit;purely cosmetic damage. My advice is be careful with this thing. Even though it supposedly has discharge/overcharge protection built in, that's not the entire story. If your lighter circuit will not accept current it may trigger a discharge through another circuit probably to protect the electrical system from overloading and sparking(pure educated guess). I therefore have found this product to be of marginal use. It's cheap enough to not bother returning which is fine by the seller I'm sure.
Rating: 
(3
out of 5) @ 2008-11-17
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Solar Battery Maintainer
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I am very pleased & satisfied with my item/purchase. It was exactly what I've been looking for, and the shipping was very good..
Rating: 
(5
out of 5) @ 2008-10-03
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Did not work for me
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I used this product following the manufacturer's instructions but unfortunately it managed to drain rather than maintain my battery. I did confirm that my lighter was still active even when the car was off so that was not the problem. In fact, I know something was happening because when I came down later that day (after I had plugged the battery maintainer into lighter of my car) the GPS screen on my car was open (it rotates up when the car turns on) and illuminated. I figured that it meant that the solar charger was working. Unfortunately, the next day when I went to start my car all it did was click. Somehow between the time I plugged in the battery maintainer and the next day something had drained my battery. I leave it up to you to decide what that was.
Rating:
(2
out of 5) @ 2008-09-14
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Did not work!!
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I dont know how people can say that this thing works. My battery still discharged. Too weak for big car batteries. You will need at least 15 watts to make a real difference.
Rating: 
(1
out of 5) @ 2008-07-15
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