Lithium 18650 Battery Pack Power Indicator Board1S / 2S / 3S / 4S 

Product details: 

• Battery type electricity quantity display
• Wide application fields: lithium battery
• Using Method: connect display board positive and negative port with tested battery positive and negative port, digital tube will display real-time battery electricity quantity

Power parameters:

• 1S lithium battery, full charge 4.2V
• 2S lithium battery, full charge 8.4V
• 3S lithium battery, full charge 12.6V
• 4S lithium battery, full charge 16.8V

1. Battery voltage is greater than N X 3.3V, light 1 grid power
2. Battery voltage is greater than N X 3.5V, light 2 grid power
3. Battery voltage is greater than N X 3.7V, light 3 grid power
4. Battery voltage is greater than N X 3.9V, light 4 grid power

The battery voltage is less than N X 3.3V, the power indicator is all off, indicating that the battery is lower than 3.3V, the battery needs to be charged.(N is for the number of battery cells)

Note:

The above data is a reference value, there will be about 2% error range. Instructions: Connect the positive and negative terminals of the display board and connect them to the positive and negative terminals of the tested battery. The digital display shows the real-time battery power.