
4S 40A 14.8/16.8V Lithium Battery Charger Protection BMS Board Li-ion Module
| Num | Name | Specification | Value |
| 1 | Voltage | Charge voltage | 16.8V |
| Single charge voltage | 4.2V | ||
| 2 | Current | Continuous discharge current | 0-18A |
| 3 | Overcharge protection | Overcharge single section detection voltage | 4.2±0.05V |
| Overcharge protection delay | 1S | ||
| Overcharge charge recovery voltage | 4.13±0.05V | ||
| Overcharge protection release delay | 20mS | ||
| 4 | Over discharge protection | Over discharge single section test voltage | 2.8V |
| Over-discharge protection delay | 1S | ||
| Single over-discharge recovery voltage | 3.0V | ||
| Over discharge protection release delay | 20mS | ||
| 5 | Overcurrent protection | Overcurrent detection voltage | 0.1V |
| Overcurrent detection current | 32±3A | ||
| Overcurrent detection delay | 300mS±100mS | ||
| Recovery state | Automatic recovery | ||
| 6 | Short circuit protection | With or without short circuit protection | Yes |
| Short circuit detection delay | 20mS | ||
| Short circuit detection voltage | 0.8V | ||
| Recovery state | Automatic recovery after Cut off Load | ||
| 7 | Temperature protection | Over temperature protection temperature | 70±5℃ |
| Over temperature recovery temperature | 60±5℃ | ||
| 8 | Power consumption | Working state | 20uA (25℃) |
| Sleep state | 6uA(25℃) | ||
| 10 | Internal resistance | Discharge circuit resistance | ≤30±5mΩ |
| 11 | Size | Length * Width | 34mm*34mm |
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