Type: Lithium/13 strings/48V. Wiring mode: same port / split portDischarge:Over-discharge protection voltage: 2.7V0.05VOverdischarge recovery voltage: 3.0V0.05V. Continuous working current: 4MOS=15A, 6MOS=20A. Instantaneous protection current: 4MOS=65A, 6MOS=80AOver-current recovery conditions: charge recovery / disconnect load. Short-circuit recovery conditions: charge recovery / disconnect loadChargeOvercharge protection voltage: 4.25V0.015VOvercharge recovery voltage: 4.15V0.015VContinuous charging current: 4MOS=15A, 6MOS=20ACharger voltage: 56V (recommended)Same port activationTwo ways to activate PACK for the first time:(1) B- and C- wires can be short-circuited once(2) Or recharge to activateSplit port activationTwo activation methods for the first PACK(-) B- and P- wires are short-circuited once(2) Or charge to activateOver temperature protectionCharging over temperature-5 to 50 (default shipping without temperature control)Discharge over temperature-30 to 70C (default shipping without temperature control)Working consumption: less than equal40uAMain circuit conduction internal resistance: 15mohmTemperature range: -40 to +80CDisconnection protection: YesProduct appearance size: 63x34x7mmColour:As shownMaterial:PC+MetalPackage Contents:1 x Protection board(20A)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.