Product Introduction:1.Charing Voltage:DC 4.2--5V CC/CV2.Single Battery Consumption Current:<=6uA continuous discharging current 2.7A3.Overcharging Detection Voltage:4.2 V+/-0.025V4.Overcharging Detection Delay Time:150-500 ms5.Overcharging Restore Voltage:4.0V+/-0.025V6.Overdischarging Detection Voltage:2.75V+/-0.1V7.Overdischarging Detection Delay Time:50-150ms8.Overdischarging Restore Voltage:2.5V+/-0.10V9.Overcurrent Detection Voltage:150+/-30mv10.Overcurrent Detection Current:4.5+/-0.5A11.Overcurrent Detection Delay Time:5ms-15ms12.Overcurrent Restore Type:automatic restore13.Short Circuit Detection State:external short circuit14.Short Circuit Detection Delay Time:<=50us15.Short Circuit Restore State:automatic restore16.Internal Resistance:MOSPET <= 40m ohm17.Operating Temperature Range:-40 - +50 Celsius18.Storage Temperature Range:-40 - +90 Celsius19.Size:3 x 0.3cm/1.18 x 0.19inch Features:1.Connecting Charger Teminal adopts withstand high voltage instrument2.Internal 3 phase overcurrent detectiton circuit (overcurrent 1,overcurrent 2,load short circuit)3.MOS tube can control battery charging and discharging4.Wide Operating Temperature Range5.Low Consumption CurrentSoldering Point Introduction:1.B+:connect with power positive2.B-:connect with power negative3.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)No retail package Package includes:1Pcx 1S 3.7V 2.5A Lithium Batterry Protection Board Polymer BMS PCM PCB Li-ion Module