This is 5V Step-Up Power Module Lithium Battery Charging Protection Board USB For DIY Charger 134N3P. It’s a Lithium Battery Charging Protection Board Boost Converter LED Display USB For DIY Charger 134N3P & High-Quality USB iron with Cheap display port video card and Integrated Circuits.
Note: Product may vary in terms of design.
Features
- BAT Discharging Stop Voltage: 2.9V.
- Discharging Efficiency:85%(input 3.7V output 5V/1A).
- Charging and discharging indication.
- Internally installed charging and discharging power MOS.
- Preset 4.2V charging voltage, precision ±1%.
- Max 8uA standby current.
- Integration charging management and discharging management.
- Intelligent temperature control and overtemperature protection.
- Integration output overvoltage protection, short circuit protection, overload protection.
- Integration overcharging and over-discharging protection.
- Support trickle mode and zero voltage charging.
- When charging: red light flashing.
- Fully charged: Red light glows for a long time.
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