Parameters：
1. Input Voltage: 3.7V-5.5V
2. Charging Current: 1A(max)
3. Output Current: 1A(max)
4. Output voltage: 5V
5. BAT Discharging Stop Voltage: 2.9V
6. Discharging Efficiency: 85%(input 3.7V output 5V/1A)
7. Preset 4.2V charging voltage with an accuracy of ±1%
8. Maximum 8uA standby current

Features:
1. Charge and discharge status indication
2. Built-in charging and discharging power MOS
3. Integrated charge management and discharge management
4. Intelligent temperature control and over temperature protection
5. Integrated output overvoltage protection, short circuit protection, heavy duty protection
6. Integrated overcharge and over discharge protection
7. Supports trickle mode and zero voltage charging

LED indicator:
1. The red light flashes when charging, and the red light is on for full charge
2. Discharge blue light flashes

Package includes：
10x5V Step Up Board Lithium Battery Charging Protection Board
2x50cm/19.68inch 24AWG Cable