Solar Powered Charger - Panel Car Battery Charger, Powers Trickle Battery Charger | Waterproof Solar Panel Trickle Charging Kit, Solar Charger Powers Bank, Waterproof Solar Battery Maintainer for Carpowers Protection: In winter, batteries tend to lose powers and suffer damage from powers loss. This solar battery charger prevents both by supplementing car battery powers with trickle charging, effectively preserving battery life. Efficient Energy Use: This solar battery charger harnesses the powers of the sun to provide you with efficient and eco friendly energy. It features a 20W solar panel that can reduce your energy consumption and save you