What is the function of the MN Model MN82 RC Car Parts Battery Voltage Alarm?

The MN Model MN82 Parts Battery Voltage Alarm supports 1S–8S Li-ion/LiPo batteries and displays the voltage of each individual cell as well as the total pack voltage in real time. When the voltage drops below the preset threshold, the buzzer sounds and the red LED flashes, helping prevent battery damage caused by over-discharge. The default alarm voltage is 3.3V per cell, and it can be adjusted and saved automatically. The device also features reverse polarity protection, water resistance, and impact resistance for safe and reliable operation.