Description
BMS NMC 7S 20A JBD (HP07SA) (543j)
BMS NMC 7S 20A JBD (HP07SA) (543j) is a compact and reliable battery management system designed for 7S lithium-ion (NMC) battery packs. It supports 20A continuous current and provides essential protection features and cell balancing, making it ideal for portable and medium-power applications.
The BMS NMC 7S 20A JBD (HP07SA) (543j) is a high-quality battery management system developed for 7-series (7S) lithium-ion / NMC battery packs. Designed by JBD (Jiabaida), this model ensures safe, stable, and efficient battery operation for small to medium power systems.
With a nominal voltage of ~25.9V (max 29.4V) and 20A continuous current capability, this BMS is ideal for applications such as portable energy storage, e-bikes, power tools, and backup battery systems.
🔋 Key Features
- 7S NMC Compatibility
Designed for 3.7V lithium-ion cells (~24V system) - 20A Continuous Current
Suitable for moderate load applications - Advanced Protection System
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Overcharge protection (~4.25V/cell)
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Over-discharge protection (~2.8V/cell)
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Overcurrent protection
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Short circuit protection
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Temperature protection
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- Passive Cell Balancing
Maintains equal voltage across all 7 cells, improving battery life - Common Port Design
Single port for both charging and discharging simplifies wiring - Ultra-Low Power Consumption
Standby current ≤50µA for energy efficiency - Compact & Lightweight
Small PCB size for easy integration in tight spaces







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