Circuit Module 4S 30A 14.8V 18650 Lithium Battery BMS PCB Protection Board

The 4 Series 30A 18650 Lithium Battery Protection Board is a versatile and reliable solution for managing the power supply of various electronic devices. With its integrated 10 low load resistance MOS tube and recovery function, this protection board ensures the safety and efficiency of your battery system.

Designed specifically for use with drill motors, Lipo cell modules, sprayers, LED lights, and low power inverters, this protection board provides a continuous discharge of 30A with balanced current. It is important to note that in cases where the cooling environment is not optimal, it is recommended to reduce the load current to ensure the board’s performance. This protection board is compatible with a wide range of lithium batteries, including 18650, 26650, and polymer lithium batteries, with a nominal voltage of 3.6V to 3.7V. The charging voltage can range between 16.8V to 18.1V, allowing for flexibility in charging options. The board operates smoothly with a continuous charge current (upper limit) of 20A, making it suitable for a variety of applications.

Measuring approximately 46 x 60 x 3.4 mm, this protection board is compact and easy to install either on the battery bundle itself or in a confined space. Its compact size makes it a practical choice for various electronic devices. This product is proudly featured by Dhaka Robotics Bangladesh, a trusted name in the industry. In order to ensure the successful start of the drill, it is recommended to use three 15C-20C power batteries or six 10C-15C power batteries. Ordinary 18650 batteries may not be sufficient to start the drill. Additionally, it is crucial to strictly follow the map wiring of 0V, 4.2V, 8.4V, 12.6V, and 16.8V to avoid deliberate short circuits.

When using the load of the brush motor, it is advisable to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent reverse spikes from damaging the MOS tube. For systems with 4 groups of batteries in series, it is essential to ensure that the voltage of each group of batteries is the same. If not, each battery should be filled separately and then used in series. During discharge testing, if a battery group experiences faster voltage drop, it may indicate a poor battery within that group. The protection board features overcharge protection, over-discharge protection function, short circuit protection function, overcurrent protection function, and band balance. These features ensure the safety and longevity of the battery system, making it a reliable choice for various applications.

In conclusion, the 4 Series 30A 18650 Lithium Battery Protection Board with Cable and Balance Board for Drill Motor Lipo Cell Module is a versatile and efficient solution for managing the power supply of electronic devices. With its advanced features and reliable performance, this protection board is a practical choice for anyone seeking to ensure the safety and efficiency of their battery system.

Package Includes:

1 x 4S 30A 14.8V 18650 Lithium Battery BMS PCB Protection Board