Sunforce 50022 5 Watt Solar Battery Trickle Charger

I used this solar panel for my science experiment. Even though it was amorphus, it still provided excellent electricity for my cars that I used in the experiment. Though the panels produced little electricity, it was still very good and perfectly understandable. Amorphus doesn't really provide much electricity and probably won't be good to use for powering very intense electrical wares. But, if you are using this for an experiment that requires little energy, this is a great solar panel to use. It's also very cheap.

My wife's car got one for Xmas. The device was easy to install.
Unfortunately, without disconnecting the battery, it doesn't provide enough power to keep the battery charged in the winter, when sun hours are few, even in California.

The Sunforce 50022 5 Watt Solar Battery Trickle Charger is a great item. I use it on my boat to maintain 2 batteries while in port. Highly recommend this item. Aloha;Rodney

I have a '02 Kia Sedona. During the winter if I didn't start my vehicle every 2-3 days the battery would be drained to the point of not starting. This was hard on batteries(even more so in the winter time) and they would be no good in a matter of months. After looking for a solution on the net I stumbled across this product. I had to hook it direct to the battery due to my power source not working when vehicle is off. No big deal, ran the sturdy looking wire through door and right under the hood. Cant even see the wire. Also i bought a new battery just for a fresh start.

4 days later I go out to start my vehicle cringing that I might have to call roadside again. And it fired right up. This product was worth every penny. As other have mentioned, it is a bit rigid and looks like it can break easy. My dash is wide so I just put an anti-slip mat under it and it stays put.

I have a 98 Camry that is rarely used, and often when I tried to use it, the battery had been drained (not sure by what) to the point that the starter would only make clicking sounds. Since I have hooked up the Sunforce 5watt trickle charger the car starts up every time! Very cool product.
My only complaints would be that it is a bit large, but still rests on the dash when the car is parked, and I had to connect direclty to the battery (with provided clips) since the cigarette lighter is turned off when the ignition is off - but I just ran the wire around the door frame and under the hood.