3Pcs Micro USB 5V Lithium Battery Charger Boost Protection Board Li-Po Li-ion 18650 Power Bank Charger Board DIY

Charge and discharge status indication Built in charging and discharging power MOSInput voltage 3 7V 5 5VCharging current up to 1AOutput current up to 1AOutput voltage 5VBAT discharge termination voltage 2 9VPreset 4 2V charging voltage with an accuracy of ±1 Discharge efficiency 85 input 3 7V output 5V 1A Maximum 8uA standby currentIntegrated charge management and discharge managementIntelligent temperature control and over temperature protectionIntegrated output overvoltage protection short circuit protection heavy duty protectionIntegrated overcharge and overdischarge protectionSupports turbulence mode and zero voltage chargingPackage included 3 x Battery Charging Module