An Intelligent electricity quantity display board; slightly push trigger switch, it will auto power off after 3 seconds display.
Display indication:25% first light is on(voltage:6.6V);50% second light is on (voltage:7V);75% third light is on (voltage:7.5V);100% fourth light is on (voltage:8V).
The intelligent power display panel
Static power consumption 2~3 mA, It’s negligible
Power indication(The color of the lamp is green)
1 x 4S 18650 12V Lithium Battery Capacity Indicator Module Percent Power Level Tester LED Display Board Module