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

​ ​ ​1.Input Voltage:  3.7V~5.5V ​ ​2.Charging Current:  1A(max) ​ ​3.Output Current:  1A(max) ​ ​ 4.Output voltage:  5V   ​ ​ 5.BAT Discharging Stop Voltage:  2.9V   ​ ​6.Discharging Efficiency:  85%(input 3.7V output 5V/1A) ​ ​ ​ Features:

​ ​ ​1.Charging and discharging indication ​ ​ 2.Internally installed charging and discharging power MOS   ​ ​3.Preset 4.2V charging voltage, precision ±1% ​ ​4.Max 8uA standby current ​ ​5.Integration charging management and discharging management ​ ​6.Intelligent temperature control and overtemperature protection ​ ​7.Integration output overvoltage protection,short coircuit protection,overload protection ​ ​8.Integration overcharging and overdischarging protection ​ ​9.Support trickle mode and zero voltage charging