🔋 3S 40A Lithium-Ion BMS 12V Protection Board by Ekastore
The 3S 40A Lithium-Ion BMS Protection Board is designed to manage and protect three 3.7V Li-ion cells connected in series (3S), creating a nominal 11.1V battery pack. It provides essential protection against overcharging, over-discharging, overcurrent, and short circuits, making it suitable for DIY battery packs, robotics, portable power systems, and other battery-powered projects.
✅ Key Features:
- 3S Battery Configuration – Designed for 3 Li-ion cells connected in series
- 40A Protection Rating – Suitable for high-current battery applications
- Overcharge Protection – Helps prevent excessive charging voltage
- Over-Discharge Protection – Protects cells from excessive discharge
- Overcurrent & Short-Circuit Protection – Helps safeguard the battery pack and connected load
- Cell Balancing – Helps maintain more consistent voltage among the three series cells
- Compact PCB Design – Easy to integrate into custom battery packs
⚙️ Specifications:
| Property | Details |
|---|---|
| BMS Type | 3S Li-ion Battery Protection Board |
| Battery Configuration | 3S (3 Cells in Series) |
| Compatible Battery | 3.7V Li-ion / 18650 Cells |
| Nominal Pack Voltage | 11.1V |
| Fully Charged Voltage | 12.6V |
| Maximum Current Rating | Up to 40A* |
| Overcharge Protection | Yes |
| Over-Discharge Protection | Yes |
| Overcurrent Protection | Yes |
| Short-Circuit Protection | Yes |
| Cell Balancing | Yes |
| Application | 12V Li-ion Battery Packs |
*Actual continuous current capability depends on the specific board design, cooling, wiring, and operating conditions.
🔗Connection Diagram:
🛠️ Applications:
- DIY 12V Li-ion battery packs
- Robotics and RC projects
- Portable power supplies
- LED lighting systems
- DIY UPS and backup power systems
- Electric tools and equipment
- Solar-powered projects
- High-current electronic applications
📦 Package Includes:
- 1× 3S 40A Lithium-Ion BMS 12V Protection Board
