... -circuit,Overload protection high quality,prompt 4.2V 1A Charger 4.2V 1A lithium battery charger (for a lithium battery) constant voltage and constant current charging ... slowly decreases, less current is reduced to 0.05C, the battery is full, the charging process Red light, green light filled ... %RHStorage temperature,humidity-10°C~+60°C,20%~90%RH 4.2V 1A Universal Charger