5V Step-Up Power Module Lithium Battery Charging Protection Board USB For DIY Charger

5V Step-Up Power Module Lithium Battery Charging Protection Board USB For DIY Charger 134N3P Lithium Battery Charging Protection Board Boost Converter LED Display USB For DIY Charger 134N3PHigh-Quality USB iron with Cheap display port video card and Integrated Circuits.

1. BAT Discharging Stop Voltage: 2.9V.
2. Discharging Efficiency:85%(input 3.7V output 5V/1A).
3. Charging and discharging indication.
4. Internally installed charging and discharging power MOS.
5. Preset 4.2V charging voltage, precision 1%.
6. Max 8uA standby current.
7. Integration charging management and discharging management.
8. Intelligent temperature control and overtemperature protection.
9. Integration output overvoltage protection, short circuit protection, overload protection.
10. Integration overcharging and over-discharging protection.
11. Support trickle mode and zero voltage charging.
12. When charging: red light flashing.
13. Fully charged: Red light glows for a long time.