Protection Circuit Module ( PCB ) for 481V Li-ion Battery Packs
Protection Circuit Board for 48.1V Li-ion/Li-polymer battery pack Designed for 48.1V Li-ion/Li-polymer batteryApply for 13 cells Li-ion/Li-polymer battery pack protectionInternally trimmed charge and discharge voltage limits.Discharge current limit detection.High quality and high yield100% tested before shipment.Working voltage48.1VMaximal working current15ADimension116mm x 81mm Specifications No.ItemsMinTypMaxUnit1Charging voltage54.855.2V2Charging current15A3Discharging current1518A4Current consumption300uA5Balance current for single cell556065mA6Balance voltage for single cell4.14.154.2V7Overcharge detection voltage for single cell4.34.3254.35V8Overcharge detection delay time0.961.21.4s9Over discharge detection voltage for single cell2.222.32.38V10Over discharge detection delay time115144173ms11Short circuit protectionExterior short circuit 12Protection circuitry resistance1530m13Operating temperature range-40+85*C14Storage temperature range-40+125C *MAXIMUM OPERATING TEMPERATURE OF 85 DEGREES CELSIUS PERTAINS TO ELECTRONIC COMPONENTS FOUND ON THE PCB. ACTUAL OVER-TEMPERATURE CUTOFF IS LIMITED BY THE THERMAL FUSE. SEE FOLLOWING NOTES BELOW. NOTE:THERMAL FUSE COMING OFF OF THE PCB, SHOWN IN THE BOTTOM OF THE IMAGE, NEEDS TO BE PLACED ONTO A CELL (OPTIMALLY EMBEDDED BETWEEN CELLS AT HEART OF THE BATTERY PACK),HAS A TEMPERATURE CUTOFF OF 80 DEGREES CELSIUS.Connection Diagram Because of thevery high energy density, Li-Ion Battery pack must be connected to a protection circuit module to prevent accidental battery explosion caused by over-charging or over-discharging.