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

Please NOTE : we have documents of most of products in our store If you need it , contact us :) Product Introduction: 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 When charging :red light flashing; Full charged :red light light for a long time. Buyers Show