SOLPERK 10W Solar Panel，12V Solar Panel Charger Kit+8A Controller，Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (10W Solar)

Works awesome, hooked up to small battery, 750 watt inverter . Powered my palm tree light

Bought this as part of an outdoor solar-powered lantern project at my home, to charge a 20 AH battery. I mounted the panel permanently on the house sloped roof but had to modify the bracket to do so. As other reviewers demonstrate the bracket does work well for portable use but could have been made more useful if the manufacturer provided a few more holes. That said the cabling setup they provide is complete and useful for a quick and/or portable setup. I can't tell if that cable insulation is UV stable so long term it might break down in sunlight. However as one of the photos shows a sliding cover conceals the panel wiring so I was able to connect cable having better insulation. Another photo shows the panel, cabling and controller under test with a 12 volt DC candelabra lamp -- I guess this is the proverbial "solar powered night light" ;-) Although the provided controller works well as intended, I ended up using another one that has additional features more useful for my application.

Keeps my bilge battery topped up without issue. It is seldom in direct sunlight, but does the job nicely.

Not bad little solar panel to maintain (will not charge a battery) my rv battery or my car while on vacation during the winter. Would have gave 5 stars if it came with a longer cord had to buy a 25ft cord.

I purchased 2 of these, one for my generator and one for my boat. I have a different controller where I can monitor the actual voltage, but connect it to this panel for both uses. The panels are about a year old. They are mounted outside in the weather and have worked well. For my generator: it has kept my gel battery topped off and have strong starts every time. For the boat: It has supplied enough power to keep my 890CCA battery maintained during the winter and when the boat is not in use during the season, I have kept it plugged in and maintains a full charge. Given my boat battery is fairly big, this panel has worked fine. When I place my battery tester on it the tester confirms a 98% charge after winter. Pretty impressive considering the size of the battery and only 10W out from the panel. The panels get direct daylight for about 5 hours a day and then are in shadow. The controllers show charging still in the shadow so direct sunlight is not exactly needed but if you want to maximize your capabilities, I'd say make sure they have enough direct light for at least 1/2 of the day. Otherwise, the shade doesn't appear to hurt it any. Cloudy days still produce a good charge. Going to purchase another soon for my father's new generator that I am going to buy for him.

I got this charger to maintain the starter battery on my backup generator. Works great. It's not designed to a rapid charge, but a slow trickle charge. It's small panel size is just perfect to mount to the top of the generator housing cover. Cables are long enough to reach. Quick connect connectors make installation a breeze. Well worth the money for what it does.

This panel never worked at all. I tried to use it on my boat battery and did nothing.

This is a very well made solar charger. The only problem I had was that the polarity is backward from the other one I have. My bad for having assumed that the same connector would have the same polarity, but I guess IEEE standards don't trickle down to this level of engineering. No matter, once I reversed the polarity of the solar panel wires connected directly to the battery on my RV everything worked like a dream. It's a good value and should add years of life to my RV battery. I would recommend this unit if you're looking for a weatherproof outdoor-rated solar-powered 12v battery trickle charger.