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2S 7.4V 4A BMS Li-ion Protection Module
Designed for 2S Li-ion battery packs, this BMS board provides overcharge, overdischarge, overcurrent, and short circuit protection in a single compact module. Low power consumption and wide temperature range ensure reliable battery management.
Technical Specifications
| Charge Voltage | DC 9V CC/CV (Max. 12V) |
| Maximum Continuous Discharge Current | 4 A |
| Single Cell Current Consumption | ≤ 6 µA |
| Overcharge Detection Voltage | 4.29 V ±0.025 V |
| Overcharge Delay Time | 1 s |
| Overcharge Recovery Voltage | 4.05 V ±0.025 V |
| Overdischarge Detection Voltage | 3 V ±0.1 V |
| Overdischarge Delay Time | 128 ms |
| Overdischarge Recovery Voltage | 3.2 V ±0.1 V |
| Overcurrent Detection Voltage | 200 mV |
| Overcurrent Detection Current | 9.8 A |
| Overcurrent Delay Time | 12 ms |
| Short Circuit Detection Delay | ≤ 50 µs |
| Protection Circuit Internal Resistance (MOSFET) | ≤ 21 mΩ |
| Operating Temperature | -40°C ~ +80°C |
| Storage Temperature | -40°C ~ +125°C |
| Dimensions (approx.) | 35 x 17 mm |
Package Contents
- 1x 2S 7.4V 4A BMS Li-ion Protection Module
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