LifePo4 Lithium Battery Active Balancing Module (BMS) 5-6S 1.2A
The Lithium Battery Active Balancing Module is designed to maintain balanced voltage levels across lithium-ion battery cells connected in 5S or 6S configurations. It monitors individual cell voltages and helps correct voltage differences that develop during charging and discharging, improving the consistency and utilization of the battery pack.
Using active energy-transfer technology, the module transfers energy from higher-voltage cells to lower-voltage cells with a balancing current of up to 1.2A. Unlike passive balancing circuits that dissipate excess energy as heat, active balancing helps reduce energy waste and improve overall battery efficiency. It is suitable for battery pack assembly, electric mobility systems, robotics, and rechargeable energy storage applications.
Features:
- Active cell-to-cell energy transfer.
- Supports multiple battery cell configurations.
- Helps maintain balanced cell voltages.
- Reduces voltage differences between individual cells.
- Improves battery capacity utilization.
- Minimizes energy loss during balancing.
- Helps maintain consistent battery performance.
- Compact design for battery pack integration.
Specifications:
| Parameter | Value |
|---|---|
| Product Type | Active Battery Balancing Module |
| Battery Chemistry | Lithium-ion |
| Supported Configurations | 5S / 6S |
| Number of Cells | 5 or 6 Cells in Series |
| Balancing Method | Active Energy Transfer |
| Maximum Balancing Current | 1.2A |
| Nominal Voltage (5S) | 18.5V |
| Maximum Charging Voltage (5S) | 21V |
| Nominal Voltage (6S) | 22.2V |
| Maximum Charging Voltage (6S) | 25.2V |
| Cell Nominal Voltage | 3.7V |
| Maximum Cell Voltage | 4.2V |
| Connection Type | Cell Balance Connections |
Pinout:
| Pin | Connection |
|---|---|
| B- | Battery pack negative |
| B1 | Cell 1 positive |
| B2 | Cell 2 positive |
| B3 | Cell 3 positive |
| B4 | Cell 4 positive |
| B5 | Cell 5 positive |
| B6 | Cell 6 positive |
Applications:
- 18650 lithium-ion battery packs.
- 21700 battery assemblies.
- Electric bicycles and scooters.
- Electric vehicle battery systems.
- Portable power stations.
- Solar energy storage systems.
- Robotics and autonomous projects.
- DIY rechargeable battery packs.
Packages Included:
- 1 × Lithium Battery Active Balancing Module 5–6S 1.2A.
