printed circuit board，bms 7S
| Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD | ||||
| PCM SpecificationsFor 25.9V（7S）Li-ion Battery Packs | ||||
| Model:LWS-13S15A-051(7S) | ||||
| No. | Testitem | Criterion | ||
| 1 | Voltage | Charging voltage | DC:29.4VCC/CV | |
| Balance voltage for single cell | 4.20±0.025V | |||
| 2 | Current | Balance current for single cell | 42±5mA | |
| Current consumption | ≤20μA | |||
| Maximal continuous charging current | 15A | |||
| Maximal continuous Discharging current | 15A | |||
| 3 | Over charge Protection | Over charge detection voltage for single cell | 4.25±0.025V | |
| Over charge detection delay time | 0.5S—1.5S | |||
| Over charge release voltage for single cell | 4.05±0.05V | |||
| 4 | Over discharge protection | Over discharge detection voltage for single cell | 2.50±0.062V | |
| Over discharge detection delay time | 10mS—150mS | |||
| Over discharge release voltage for single cell | 2.50±0.062V | |||
| 5 | Over current protection | Over current detection voltage | 0.20±0.015V | |
| Over current detection current | 50±10A | |||
| Detection delay time | 5ms—15ms | |||
| Release condition | Cut load | |||
| 6 | Short protection | Detection condition | Exterior short circuit | |
| Detection delay time | 200-500us | |||
| Release condition | Cut load | |||
| 7 | Resistance | Protectioncircuitry（MOSFET） | ≤20mΩ | |
| 8 | Temperature | Operating Temperature Range | -40～+65℃ | |
| Storage Temperature Range | -40～+125℃ | |||
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