Description BMS (Battery Management System) is an electronic board that is installed on a battery in order to control the charge/discharge process, monitor the state of the battery and its elements, control the temperature, the number of charge/discharge cycles, and protect the components of the battery. Main characteristics Nominal discharge current 20A Nominal charge current 10A (recommended battery capacity Ah) Nominal charge voltage 29.4 V Balancing current 30+-5 mA Passive equalization functions Passive equalization turn-on voltage 4.175V Overcharge protection Overcharge protection turn-on voltage (per 1 cell) 4.25±0.05V Overcharge protection activation time (per 1 cell) 1±0.5sec Overcharge protection cut-off voltage (per 1 cell) 4.15±0.05VOvercharge protection cut-off time (per 1 cell) 1±0.5sec overdischarge protection 1±0.5secProtection against charge/discharge current overload Protection current against discharge current 60±10AZoverload protection delay overdischarge current 1±0.5secOvercharge protection current 13±3 АProtection activation time 1±0.5secShort circuit protection delay 200-500msec Open circuit resistance of the main circuit <20 mΩ Current self-consumption during operation <100 uA (not including self-consumption current) Self-consumption current in sleep mode 0 uA Dimensions 59*34*9 mm Equipment error Current detection accuracy: ≤(±10%FSR) Circuit voltage detection accuracy: ≤±25 mVOperating temperature: -20℃~60℃℃Relative humidity: 5% ~ 75%
Characteristics
- Manufacturer
- DaLy
- Country of manufacture
- Китай
- Maximum discharge current
- 20 A
- Number of cells for LiFePO4
- 7S
- Nominal charge current
- 10 A
- Nominal discharge current
- 20 A
- Balancing current
- 30±10 мА
- Internal resistance of the main circuit
- ≤20 мОм
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