INVENTO 5pcs 5V Step-Up Power Module Lithium ion Battery Charging Board Boost Converter Usb For DIY Power Bank circuit Charger Electronic Components Electronic Hobby Kit

USB lithium battery charge and boost circuit board ideal for diy power banks with a maximum quiescent current of 8uA. Micro USB for charging of the 3.7v lithium cell and USB connector with boost circuit for 5v output. Charging current upto 1A with built in charge status LED and an output current upto 1A with over voltage protection, short circuit protection, overload protection. Input voltage : 3.7v to 5.5v; Charging current :1A (max); Output current :1A (max); Standby current : 8uA Output voltage : 5V; Battery charged cut of voltage : 4.2v ±1%; Battery discharge cut off voltage : 2.9v ±1% Discharging efficiency : 85% (input 3.7V output 5V/1A); Charging : red light will flash; Fully charged : red light on steady; Output : overvoltage protection, short circuit protection, overload protection