2-in-1 LiPo/Li-ion Battery Voltage Tester, 3 Pieces, Low Voltage Audible Alarm for RC Lipo/Li-ion/LiMn/Li-Fe 1s-8s Monitor

Battery protection function: Tests the battery's operating status. Protects the battery from overcharging and over-discharging, safeguarding your RC device. Voltage display: Simply connect the balance plugs and it will cycle through the individual cell voltages and display the total voltage. Adjustable voltage: When the voltage falls below the set value, a buzzer will sound along with a red light. The preset value is 3.3V. Press the button to change and save the voltage setting. Practical and quick: Works with any 1-8S LiPo/Li-Ion/LiMn/Li-Fe RC drone battery. Protects the battery from overcharging and over-discharging. Simply connect it to the balance plugs and the LED will display the voltage of each cell and the total voltage.
Easy to install with simple connecting cables, it works seamlessly with various RC models, including drones, cars, and airplanes, providing continuous monitoring during operation without interfering with performance or requiring complex setup.