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BMS 3S/4S 5A 10A 20A 25A 40A 60A Li‑ion Lithium Battery Charger Protection Board – the ultimate safeguard for your 18650 cells. Designed for 12V drill motors and other high‑power applications, this board delivers precise balance charging, over‑current protection, and reliable power management in a compact, easy‑to‑install package.
Key Highlights
- Supports 3S and 4S Li‑ion 18650 configurations for versatile power solutions
- Multiple current ratings: 5A, 10A, 20A, 25A, 40A, 60A – choose the perfect match for your load
- Integrated balance charging to extend cell life and maintain uniform voltage
- Robust over‑charge, over‑discharge, and short‑circuit protection for safety
- Compact 12V design ideal for drill motors, power tools, and DIY projects
- Easy to mount on PCB or directly on battery pack with standard 18650 sockets
- Compatible with most commercial Li‑ion chargers and power supplies
Benefits for Your Projects
By integrating this BMS board, you gain reliable protection against dangerous voltage spikes, prevent battery degradation, and achieve consistent performance from your 18650 cells. Whether you’re building a high‑speed drill, an electric scooter, or a portable power bank, this board ensures your battery pack operates safely and efficiently.
Technical Specifications
• Input Voltage: 12V (typical for drill motors)
Output Current: 5A – 60A (selectable)
Cell Count: 3S / 4S (up to 12V / 16V)
Protection Features: Over‑charge, over‑discharge, short‑circuit, over‑current, temperature monitoring
Balance Interface: 4‑wire balance for 4S, 3‑wire for 3S
Dimensions: 35mm × 20mm (approx.)
Weight: 15g
Installation & Usage
1. Connect the board to your 18650 battery pack using the standard 4‑wire balance leads.
2. Attach the 12V input to your drill motor or charger.
3. Verify the correct current rating setting on the board before powering on.
4. The board will automatically manage charging, balancing, and protection during operation.
Upgrade your battery safety and performance with the BMS 3S/4S 5A 10A 20A 25A 40A 60A Li‑ion Charger Protection Board – the smart choice for any high‑power Li‑ion application.
Price: Original price was: $ 20.38.$ 6.83Current price is: $ 6.83.