5V Boost Step Up Power Module Lithium LiPo Battery Charging Protection Board LED Display USB For DIY Charger 134N3P Program

Charge and discharge status indication.Built-in charging and discharging power MOS.Input voltage: 3.7V~5.5V.Charging current: up to 1A.Output current: up to 1A.Output voltage: 5V.BAT discharge termination voltage: 2.9V.Preset 4.2V charging voltage with an accuracy of ±1%.Discharge efficiency: 85% (input 3.7V, output 5V/1A).Maximum 8uA standby current.Integrated charge management and discharge management.Intelligent temperature control and over temperature protection.Integrated output overvoltage protection, short circuit protection, heavy duty protection.Integrated overcharge and overdischarge protection.Supports turbulence mode and zero voltage charging.