Features
Single electricity display indication:
25% first light is on (voltage: 3.4V)
50% seconds light is on (voltage: 3.6V)
75% third light is on (voltage: 3.8V)
100% fourth light is on (voltage: 4V)
5. Size: 44x9x7.5mm
Package Include:
1 x 1S Single 18650 Lithium Battery Capacity Indicator LED Display Panel Power Board