Description
The 3S BMS for 18650 Battery is designed for managing three 18650 lithium-ion cells in a series configuration, providing a nominal voltage of 11.1V (3.7V per cell) and capable of handling up to 40A continuous discharge current. This BMS ensures safe operation of the battery pack by monitoring parameters like voltage, current, and temperature. It features overcharge, overdischarge, overcurrent, and short circuit protection, making it ideal for high-power applications such as electric vehicles, power banks, RC vehicles, and solar energy storage systems.
Specifications:
| Model | 3S BMS for 18650 Battery 40A |
| Battery Type | 3S 18650 Lithium-ion (Li-ion) |
| Nominal Voltage | 11.1V |
| Maximum Voltage | 12.6V (4.2V per cell) |
| Minimum Voltage | 9.0V (3.0V per cell) |
| Continuous Discharge Current | 40A |
| Charging Current | 5A |
| Balancing Current | 100mA (per cell) |
| Overcharge Protection | Yes (Over 4.2V per cell) |
| Overdischarge Protection | Yes (Under 3.0V per cell) |
| Overcurrent Protection | Yes |
| Short Circuit Protection | Yes |
| Temperature Protection | Yes |
| Self-Consumption | < 50uA |
| Size | 60mm x 50mm x 5mm |
| Weight | 35g |
Key Features:
- Cell Balancing: Ensures that all cells in the series configuration are balanced, ensuring even discharge and extending battery life.
- High Current Capacity: Supports a continuous discharge of 40A, suitable for applications that require higher power output.
- Overcharge & Overdischarge Protection: Protects the cells from damage due to overcharging (more than 4.2V per cell) and overdischarge (below 3.0V per cell).
- Short Circuit & Overcurrent Protection: Protects the system from short circuits and excessive current (above 40A) that can cause damage.
- Temperature Protection: Prevents overheating by cutting off power if the module exceeds a safe operating temperature.
- Compact Design: Easy to integrate into DIY projects, offering excellent protection in a small form factor.
Applications:
- Electric Vehicles (EVs) – Ideal for e-bikes, e-scooters, and other electric vehicles that require high discharge rates.
- High-Capacity Power Banks – Perfect for DIY power banks requiring more power for devices like laptops, tablets, or other high-energy-consuming electronics.
- RC Vehicles & Drones – Suitable for high-powered RC cars, drones, or other hobby electronics that demand high discharge rates.
- Solar Energy Storage – Can be used in solar-powered systems, helping to manage battery charging and discharging for efficient energy use.
- Battery Packs for Tools – Can be integrated into power tools requiring a high-capacity power source.
