ECO-WORTHY Solar Battery Charger 12 Volt Waterproof Portable Power Solar Panel Solar Trickle Car Battery Charger Maintainer for Car Truck Boat RV ...

This was a 10watt panel I decided to get for my fishing boat to mount to the windshield to keep my battery maintained while on the water be the kids like to listen o the radio. This panel Im sure will put out the 20 max watts as advertised Im sure because this was right before the eclipse and it had 19.5v so Im sure in full sun it will work and it has all the charging protectors built into it where it will not over charge your battery I will definitely buy this again but from a different seller the seller took over 3 weeks to ever ship but ZeeBooth did make it right for me so Im happy.

I been wanting a little solar charger. To test this one out I put it on a mower that hasnt ran in over a year. Left it a couple days and tried it and the starter barely clicked. Waited another day and tried it and the mower turned over a couple times but slow. Gave it a couple more days, walked out and turned the key and the mower started up. I really didnt think that battery would take a charge but this solar charger worked like a champ and trickle charged it until it was good. Very impressed!

The response to questions on how it works was very poor

First thing was how small this was. It's replacing a lower wattage panel but is maybe 20-30% smaller. It is also quite light and thin. However, if you need something that is fairly rugged, be aware that the panel really is quite thin. It's not flimsy but this is not something you're going to keep in the trunk of your car where it's going to be banged around. For my purposes it's just fine though. The connector polarity was reversed compared to the rest of my solar gear so be sure to check before using with any accessories other than the ones it came with.

Being retired is great, but it has meant that my car often sits in the driveway for a week or two without being driven. That inactivity has caused the car battery to be so weak that the car wont start. We replaced the battery with a new one, but the problem resurfaced after several months, We believe the source of the problem may be that the backup camera, that I installed, doesnt always shut off completely when the car is parked. My solution was to use this solar charger on the car when it is parked. Since I have been using the solar charger the car had started without failing. I needed an inexpensive, but reliable, solution; and this solar charger had been perfect for those needs. Just what the doctor ordered!