Review on 25W Bendable Solar Panel for Portable Car Battery Charging with 12V Cigarette Lighter Plug - Lightweight and Flexible Design by Christian Byrd

That's crap, don't buy it. First the USB/power connector on the panel fell off due to heating in the sun. Secondly it doesn't charge anything at all, I tried 2 different batteries and although it says it outputs 12 volts to the battery it doesn't charge it at all. waste of money .