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4-4 Technical Parameters of Battery Management System (BMS)
Function name
Item list
Set value
Setting range
Cell voltage
alarm
Overvoltage alarm voltage
3,750±20mV
Alarm value of monomer
undervoltage to 4,500mV
Undervoltage alarm voltage 2,600±50mV
1,000mV to Alarm value of
monomer overvoltage
Cell
overvoltage
protection
Overvoltage protection
voltage
3,800±20mV
Recovery value of monomer
overvoltage to 4,500mV
Overvoltage recovery
voltage
3,600±20mV
Recovery value of monomer
undervoltage to
Protection value of
monomer overvoltage
Overvoltage recovery
conditions
1. When the monomer voltage is lower than the
recovery point, automatically recover charging.
2. When the monomer voltage is lower than the
protection point and the capacity is ≤95%
(regularly charging conditions: Charging once per
day), recover charging.
Cell
undervoltage
protection
Undervoltage protection
voltage
2,500±50mV
1,000mV to Recovery value
of monomer undervoltage
Undervoltage recovery
voltage
2,600±50mV
Protection value of
monomer undervoltage
To Recovery value of
monomer overvoltage
Undervoltage recovery
conditions
The valid charging current is detected and the
voltage is higher than the recovery point.
Alarm of total
voltage of
battery
Overvoltage alarm voltage
55.8±0.5V
Alarm value of total
voltage undervoltage to
65V
Undervoltage alarm voltage 42.0±0.5V
20V to Alarm value of total
voltage overvoltage
Battery
overvoltage
protection
Overvoltage protection
voltage
58.5±0.5V
Recovery value of total
voltage overvoltage to
65V
