IMAX 1-8S Lipo Battery Voltage Tester & Low Voltage Buzzer Alarm Airsoft

• Function of checking your lipo cells voltage
• Function of lower voltage warning before and in flight
• Automatic protects against reverse connection
• Test the working state of lithium battery
• Protect the battery from overcharging or overdischarging

When the voltage is below the set value it will buzz and the red LED light will turn on. It has a pre-set value of 3.3V. There is a push key that can change the voltage settings and save. This can prevent your lipo battery from being damaged due to low voltage