Reason 1: Cell performance differences
Reason 2: Module assembly and connection process issues
Reason 3: Thermal non-uniformity
Reason 4: The pressure differential has increased due to the customer’s operating conditions
Reason 5: The data acquisition line is inaccurate
Reason 2: A certain string of battery cells has completely failed or is short-circuited.
Reason 3: Severe over-dischargeReason 4: Internal micro-short circuit leakage
Reason 5: BMS/sampling issue (appears to be low voltage) Reason 1: Low ambient temperuture
Reason 2: The charging and discharging procedures recommended by different companies show discrepancies
Reason 3: Large voltage difference among sorted and matched cells
Reason 4: Abnormal performance of individual battery cells
Reason 5: Module process technology issues