DescriptionModel Number : 4S 14.8V 20ACompale Brand/Model : NoneBrand Name : SZEKSOrigin : Mainland Chinais_customized : NOType : Voltage RegulatorApplication : ComputerCondition : New4S 14.8V / 16.8V 20A Peak Li-ion BMS PCM Battery Protection Board BMS PCM For Lithium LicoO2 Limn2O4 18650 LI BatteryDescription:4 series 18650 battery 16.8V 16V 14.8V14.8V (Li-ion 18650 or li-ion battery rated voltage)16.8V (Li-ion battery full charge voltage)14.4V ( Lipo battery pack rated voltage)NOTE:1) this board is not suit high power electronic tools, if use for screwdrier and drill, please don\'t buy2)Above 3A device,means the battry discharge rate is more than 3C.1C rated battery, 2000mah equals 2ah*1=2A max working current.3C rated battery means 2ahx3=6A Max working current.Specification:1) high-accuracy voltage detection circuit;2) terminal of the charger using high voltage device;3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit);4) MOS transistor can control the battery charge and discharge;5) low standby current consumption.4S LI-ION BMS ParameterS:Over Charge Voltage:4.25-4.35v0.05vOver Discharge Voltage: 2.3-3.0v0.05vMax working current:10AMax Peak current:20AWorking Temperature:-40---+50Storage Temperature:-40-- +80Small current:6uALife cycle:50000hoursResistance:45mShort cut Protection:Protectable ,change for repair Size:35*35*3.0mmBMS solder instruction:B+ connected battery positive;B1 the connect point between battery 1 and battery 2B2 connect the point between battery2 and battery 3B3 Connect the point between battery 3 and battery 4B- connect to battery negative endP- + connection charge / discharge positive;P- connection charge / discharge negative4S Li-ion18650,LiCoO2,LiMn2O4,Li(NiCoMn)O2 rechargeable batteries4S Lipo rechargeable batteriesPackage Included:1 Pcs 4S Li-ion18650 Module