AA/AAA battery to lithium battery power supply 3.7V to 6V step-up charging discharging module for doorbells,e-scales,toy refit

Welcome to my store. I hope you have a pleasant shopping experience.Quantity : 1 High-concerned chemical : None Package : TQFP is_d : Yes Dissipation Power : 10uA Supply Voltage : DC 5V Application : Electric Toy Type : Module Origin : Mainland China Condition : New Operating Temperature : -20-70℃ Product Name : AA/AAA Dry Cell To Lithium Battery Power Supply module Feature : AA/AAA Dry Cell To Lithium Battery Power Supply Charging Discharging,Dry Cell To Lithium Battery Charging Protection Module Type : Charging Discharging Microcontroller Conversion