3S 40A BMS Balanced Li-ion Battery Protection Board
Original price was: 169 ৳ .119 ৳ Current price is: 119 ৳ .
Key Features of this 3S 40A BMS:
- 40A Discharge & 20A Charge: Handles high current for power tools.
- Balanced Charging: Extends battery life.
- Compact Design: Lightweight and small (42x55mm/42x60mm).
- Wide Compatibility: Supports 3.6V/3.7V batteries (18650, 26650, LiPo).
- Drill Motor Ready: Handles starting currents up to 80A.
- Safety Protection: Prevents overcharge, over-discharge, and short circuits.
3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS for Drill Motor – 11.1V/12.6V Lipo4 Cell Module with Balance
The 3S 40A Lithium Battery Protection Board PCB (BMS) is an enhanced module designed for high-performance tools like drill motors. Supporting 3-cell lithium batteries with a nominal voltage of 11.1V or 12.6V, this module ensures your lithium-ion (Li-ion) or lithium polymer (LiPo) batteries are protected and balanced for optimal performance. It’s perfect for applications requiring a high starting current, such as power tools and electric drills.
Key Features:
- Enhanced Protection: Ideal for starting current up to 80A and power outputs below 130W (suitable for electric drills and motors).
- Balanced Charging Version: Helps maintain consistent voltage across cells for extended battery life and performance.
- Compatible Batteries: Designed for 3.6V/3.7V lithium batteries, including 18650, 26650, and polymer lithium cells.
- Compact Size:
- Balanced Version: 42 x 60 x 3.4mm, weight 9.8g
- Input Voltage: Supports charging between 12.6V – 13.6V.
- Discharge Capacity: Continuous discharge current up to 40A (reduce load in poor cooling environments).
- Charge Capacity: Continuous charge current up to 20A.
Important Notes for Usage:
- Battery Requirements:
- For drill motors, use three 15C-20C power batteries or six 10C-15C power batteries. Ordinary 18650 batteries cannot start drills.
- Wiring Guidelines:
- Strictly follow the wiring instructions for 0V, 4.2V, 8.4V, and 12.6V. Avoid short circuits at all costs.
- Brush Motor Compatibility:
- When using with brush motors, connect a non-polar capacitor (25V+ withstand voltage, 10uF-100uF) across the motor terminals to prevent reverse spikes damaging the MOSFETs.
- Battery Matching:
- Ensure the voltage of all cells is consistent before connecting them in series. For best results, use batteries with similar capacities and resistances. Avoid mixing good and poor batteries.
Applications:
- Drill Motors: Provides reliable power for starting and operating high-demand tools.
- Lithium Battery Packs: Suitable for 3S configurations in power tools and DIY projects.
- High-Performance Electronics: Ideal for projects requiring robust battery management systems.
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