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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.


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.

5V step up USB module for power bank

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