This kind of battery pack for auto emergency power supply have instantly starting current more than 1000 ah , it can suit for most kinds of vehicles; This battery pack cannot make in series when voltage pass 30V , or the BMS will be broken; Support customized, need other size and capacity, contact seller at first; Features Cell Capacity: 90ah Rated Voltage: 3.2V Typical Impedance (mΩ): ≤1.2mΩ Battery material: LFP PACK Combination method: 4 Series 1 Parallel Minimal capacity: >90ah Nominal voltage: 12.8V Max. charge voltage: 14.8V Discharge cut-off voltage: ≤10.5V Max Continuous Charge current : 50A (Support the customized to 100A or more, contact seller at first) Max Continuous Discharge current: 250A Instantaneous Current (3 seconds): 1000A Weight (Approx.): 12KG Max. dimension（L×W×H）(mm): 355*176*187mm Operating temperature: Charge temperature: 0℃～45℃; Discharge temperature: -10℃～55℃ Protection Board (BMS) Single cell over-charge cut-off voltage: 3.85V Over-charge release voltage: 3.65V Single cell under-discharge cut-off voltage: 2.3V Discharge release voltage: 2.5V Over-discharge cut-off current: 250A Over-discharge cut-off current delay: 1.5S Short-circuit protection: Yes Short-circuit protection delay: 500uS Short-circuit protection: Yes Short-circuit protection delay: 500uS Condition for the recovery of over-current and Short-circuit: self Balance current: 45mA Balance Condition: 3.60V Communication: NO
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