The RS5913 4S 100A BMS Board is a robust Battery Management System (BMS) designed for 4-cell Li-ion or LiFePO₄ battery packs. Equipped with premium MOSFETs and a reliable chip, it delivers stable performance, disconnection, over-current, over-discharge, and overcharge protection, along with cell balancing capabilities.
100% Brand new and high quality 18650 battery charging Module
FOR Lithium POLYMER protection Board(3.7V)
Single cell battery overcharge protect voltage : 4.21-4.29 V
Single cell battery overcharge protect recover voltage : 4.14-4.24V
Overcharge protect delay : 1.5-2.5S
Single cell battery over-discharge protect voltage : 2.72-2.88 V
Overcharge protect Current : 100A
Over-discharge protect Current : 100A
Over-discharge protect delay : 0.5-1.5S
Temperature protect : Yes
Disconnect protect : Yes
Shortage protect : Yes
Shortage delay : 100-600 uS
Shortage protect recover : YES
Charging Current : 60A
Current Balance : Yes
Ampere balance (Current) : 60MA
Voltage alance accuracy : 4.14-4.24V
Key Features
- Protection Features: Includes safeguards against overcharge, over-discharge, over-current, short circuits, and disconnection.
- High-Current Handling: Supports up to 100A for both charging and discharging
- Cell Balancing: Maintains even voltage across cells for better performance and longer life.
- Dual Port Configuration:
- Same-port mode: Discharge 60A / Charge 60A
- Separate-port mode: Discharge 80A / Charge 60A
Specifications Snapshot
| Specification | Value |
| Cell Count | 4S (4 Cells in Series) |
| Overcharge Protection Voltage | 3.61 – 3.69 V |
| Overcharge Recover Voltage | 3.5 – 3.6 V |
| Overcharge Protection Delay | 1.5–2.5 seconds |
| Balance Voltage Accuracy | 3.355–3.455 V per cell |
| Charging Current | Up to 100A |
| Continuous Discharge Support | Up to 100A |
| Protection Modes | Disconnection, Short-Circuit |