... , Maintenance-free lead-acid batteries battery 4V/3200mah Portable solar camping lights Uses: Home lighting, outdoor camping, yurts, tents, drive the lane and other ... charger, AC charger Portable lights Charging Method: 1. Give hand lamp charging before use. 2. The use of solar charging, the hand ... may be some heat when the charger, it is normal. solar camping lamp/portable solar lamp