134N3P Boost Step Up Power Module Lithium LiPo Battery Charging board charger power bank modu

1A output is not continuous current, it changes according to USB connecting load, automatic current output as per load

If a battery is connected incorrectly, the reverse polarity will burn the circuit. So, make sure to check the battery polarity when connecting.

Input Voltage: 3.7V~5.5V | Output voltage: 5V | BAT Discharging Stop Voltage: 2.9V

Charging Current: 1A(max); Output Current: 1A(max); Discharging Efficiency: 85%(input 3.7V output 5V/1A)