🧩 Introducing the 3S 4S Lithium Battery Charger Protection Board, a premium battery management system designed to optimize the performance and safety of your lithium-ion batteries. This BMS is specifically engineered for use with various battery configurations, including 18650, 26650, and polymer lithium batteries, supporting nominal voltages of 3.7V and capable of fully charging up to 4.2V.
🔧 Key Features:
- Charging Voltage: Operates between DC 16.8V to 17V, providing a reliable charging solution for your battery packs.
- Continuous Discharge Current: Offers a maximum discharge current of 40A, ensuring robust performance during high-demand scenarios. Note: if the heat dissipation environment is inadequate, it’s advised to reduce the load current.
- Continuous Charging Current: Supports charging currents up to 20A, allowing for efficient recharging without compromising battery health.
- Compact Design: The enhanced version measures 44mm x 55mm x 4mm, making it easy to integrate into your projects without adding unnecessary bulk.
- Versatile Compatibility: Suitable for powering devices such as drill motors, capable of supporting applications below 170W.
📦 Important Considerations:
- For optimal drill operation, utilize three batteries with a discharge rate of 15C-20C, or six batteries with a discharge rate of 10C-15C. Standard 18650 batteries may not provide sufficient power for startup.
- Ensure proper wiring according to the specified diagram (0V, 4.2V, 8.4V, 12.6V, 16.8V) to prevent short circuits.
- When connecting to a brush motor, it is recommended to add a non-polar capacitor (withstand voltage above 25V, capacity between 10uF-100uF) across the motor's terminals to mitigate voltage spikes that could damage the MOS tube.
- When connecting four battery groups in series, ensure that each battery group has an equal voltage. If discrepancies are found, charge each battery individually before connecting them in series. The discharge test will help identify weaker batteries based on faster voltage drops.
💥 Invest in this high-quality charger protection board to enhance your lithium battery applications, ensuring reliability, safety, and exceptional performance in every use!
