Product Introduction: 1.Charing Voltage:DC 4.2--5V CC/CV 2.Single Battery Consumption Current:<=6uA continuous discharging current 2.7A 3.Overcharging Detection Voltage:4.2 V+/-0.025V 4.Overcharging Detection Delay Time:150-500 ms 5.Overcharging Restore Voltage:4.0V+/-0.025V 6.Overdischarging Detection Voltage:2.75V+/-0.1V 7.Overdischarging Detection Delay Time:50-150ms 8.Overdischarging Restore Voltage:2.9V+/-0.10V 9.Overcurrent Detection Voltage:150+/-30mv 10.Overcurrent Detection Current:4.5+/-0.5A 11.Overcurrent Detection Delay Time:5ms-15ms 12.Overcurrent Restore Type:automatic restore 13.Short Circuit Detection State:external short circuit 14.Short Circuit Detection Delay Time:<=50us 15.Short Circuit Restore State:automatic restore 16.Internal Resistance:MOSPET <= 40m ohm 17.Operating Temperature Range:-40 - +50 Celsius 18.Storage Temperature Range:-40 - +90 Celsius 19.Size:28*3.8*1.2mm Features: 1.Connecting Charger Teminal adopts withstand high voltage instrument 2.Internal 3 phase overcurrent detectiton circuit (overcurrent 1,overcurrent 2,load short circuit) 3.MOS tube can control battery charging and discharging 4.Wide Operating Temperature Range 5.Low Consumption Current Soldering Point Introduction: 1.B+:connect with power positive 2.B-:connect with power negative 3.P+:connect with charging/discharging port positive(charging port/discharging port common used) 4.P-:connect with charging/discharging port negative(charging port/discharging port common used) Package include: 5PCS X 1S 3.7V 2.5A Lithium Battery Protection Board Polymer BMS PCM PCB Over Charge Discharge Li-ion Protect Module