5V 2in1 charge discharge board module USB For DIY Charger 134N3P

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.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.Specifications :-Input Supply voltage (V)3.7 ~ 5.5Charging Current (A)1 (max)Output voltage (V)5Output Current (A)1Length (mm)23Width (mm)17.5Height (mm)12* product image for illustration purposes only. actual product may vary.