3pcs DC-DC 5V/2A Charge Discharge Boost Battery Protection Board DD06CVSA 3.7V 4.2V Module

Description 4 in 1 charge Discharger boost battery protection Battery level indicator modulesDD06CVSA is a multifunctional 3 7V 4 2V mobile power module 4 in 1 Function charge discharge and battery protection It is very suitable for DIY mobile power Charge voltage DC 4 5V 5 5V Recommend DC 5V Charging current 0 2 1ACharge quiescent current 100uAFull charge voltage 4 2V 1 Discharge current 0 3 5A Discharge quiescent current 50uADischarge conversion efficiency maximum 96 Output voltage 5V Output current 0 2 1A Operating ambient temperature 20 to 85Size 26 7 x 18 1 x 5 7mmWeight 1 9gComes with battery protection do not need battery protection board if your battery comes with a protective board it does not matter Overcurrent protection OCP Overvoltage protection OVP Short circuit protection SCP Over temperature protection OTP Pin description 1 VIN Charging port 2 GND Charging port 3 BAT Battery port 4 GND Battery port 5 GND Output port 6 VOUT Output port 7 KEY Output trigger port Low pulse trigger 1 In discharge mode In the charging mode the KEY function is invalid the KEY Trigger once turns on the output Continuous trigger twice turn off the output 2 When the load access it will automatically turn on the output But if the load is less than 50MA the output will be turned off after 30 seconds NOTE If the output load current is less than 50MA turn off the output after 30 seconds If the output load current is gre