Capacity Indicator LED for 4S Lithium Battery is an intelligent percent power level LED indicator board, that help you keep your batteries in good condition; slightly push the trigger switch, and it will auto power off after 3 seconds of the display.

Specifications

• 25% –>First Light is on (Voltage: 4.2 V)

• 50% –>Second light is on (Voltage: 8.4 V)

• 75% –>Third light is on (Voltage: 12.6V)

• 100% –>Fourth light is on (Voltage:16.8V)

• Static power consumption 2~3 mA

Note:

1. Connect strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit. 
2. When a motor brush is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor.