Ultra-Compact Micro USB Power Bank Charging Board – Step-Up Converter with LED Indicator

Description

Input Voltage: 3. 7V~5. 5V
Charging Current: 1A(max), Output Current: 1A(max)
Output voltage: 5V, BAT Discharging Stop Voltage: 2. 9V
Discharging Efficiency: 85%(input 3. 7V output 5V/1A)

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1. Charging and discharging indication
2. Internally installed charging and discharging power MOS
3. Preset 4. 2V charging voltage, precision ±1%
4. Max 8uA standby current
5. Intelligent charging management and discharging management
6. Intelligent temperature control and over-temperature protection
7. Intelligent output over-voltage protection, short circuit protection, overload protection
8. Intelligent overcharging and over-discharging protection
9. Support trickle mode and zero voltage charging
10. Auto on /off with load detection Light display: Charging: When charging, the indicator LED red and blue flash alternately (blue light continuous on means fully charged) Discharge: Blue light on and starts flashing when battery voltage drops below 3. 2V (low battery) and it shuts down automatically when battery voltage reaches 2. 95V.

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