Design your own small power bank with this module. It can take 2-6 batteries in Parallel, and it will provide 5V 2A for its two USB outputs. It has all safety features characteristics that you find in any commercial power bank. You can know how much charge in the batteries from 4 on-board LEDs
Specification
4 level LED lights
Built in protection circuit with overcurrent, overvoltage, and undervoltage protection.
Dual USB output
micro USB input port
Output current: 2A @5V
Input charging current: 1A or more @5V
Usable batteries: 18650 Li-Ion Batteries, mobile phone batteries
