4S BMS
XJ-B027 4S 14V 30A BMS with Balance Weak Current Switch for Electric Power Tools
XJ-B027 BMS, 4S 14V 30A, for LifePO4, NMC (Li-ion) battery, with balance and weak current switch.
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Product Name |
XJ-B027 4S 30A BMS |
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Size |
131*54*1.2MM |
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Series |
4S |
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Current |
30A |
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Cell Type |
LifePO4/NMC (Li-ion) battery |
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Function |
Over charge protection, Over discharge protection, Over current protection, Short-circuit protection, Electrostatic protection, Dust Protection, Moisture Protection, Balance, Weak current switch |
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Warranty |
24 Months |
| Item | Min | Typical | Max | Unit |
| Battery pack charging voltage | 14.4 | 14.6 | V | |
| The withstand voltage of the charging MOS | 30 | V | ||
| Discharge MOS withstand voltage value | 30 | V | ||
| Single-cell overcharge detection voltage | 3.6 | 3.65 | 3.7 | V |
| Overcharge recovery voltage | 3.45 | 3.5 | 3.55 | V |
| Overcharge detection delay | 500 | 1000 | 1500 | mS |
| Single-section overdischarge detection voltage | 1.9 | 2 | 2.1 | V |
| Overdischarge recovery voltage | 2.6 | 2.7 | 2.8 | V |
| Over-discharge detection delay | 500 | 1000 | 1500 | mS |
| Continuous discharge current of the battery pack | 30 | A | ||
| Continuous charging current of the battery pack | 30 | A | ||
| Discharge overcurrent protection | 80 | 100 | 120 | A |
| Overcurrent protection delay | 50 | 100 | 150 | mS |
| Self-consumption | 30 | 50 | uA | |
| Equilibrium current | 30 | 40 | 50 | mA |
| Charging temperature protection | /℃ | |||
| Discharge temperature protection | /℃ | |||
| Output short circuit/overdischarge/overcurrent protection recovery | After short-circuit/overdischarge/overcurrent protection, the load is removed and it automatically recovers | |||
| Short-circuit protection delay | 100 | 300 | 600 | uS |
| Under normal working conditions, the internal resistance is B- to P- | 30 | mΩ | ||
| Maximum temperature rise with a continuous output current of 20A | 40 | ℃ | ||