Review on 🔆 Topsolar 20W 12V Solar Panel Trickle Charger - Portable Solar Battery Maintainer for Car, Motorcycle, Boat, Marine RV - Includes Cigarette Lighter Plug & Alligator Clip for Easy Charging by John Hall

I like charging and quality, but the white panel from the same company is flexible, can be mounted on uneven surfaces, and this black one is rigid and not flexible! I will send this one back and get the flexible white panel! I use 2 panels for my Ford Super Duty with 2 batteries because one panel is not enough. It is possible to use a panel for 2 batteries but they cannot be connected to the vehicle as the vehicle uses power for computers and the like. I keep mine plugged in and so far 12.45 volts. Later I will report how long the batteries last when connected to these panels. Update 05/04/2021 The black panel has stopped charging, is dead. The white panel keeps charging. The howl is good and tells you it's charging. I'm sending the black back and ordering a white panel. A NOTICE. The pictures showing volts and amps are only from 1 white plate charging 2 batteries for 1 week.