3pcs 4S Single 3.7V 18650 Lithium Battery Capacity Indicator Module Percent Power Level Tester LED D

Features: 1. Intelligent power display panel, tap the trigger switch to display, display automatically closed after 3 seconds (Note: if you need to keep the light , direct short-circuit switch) 2. Static power consumption 2~3 mA, It's negligible 3. Power indication(The color of the lamp is green) Ua6.6V 25% led indicator is lit Ua7V 50% led indicator is lit Ua7.5V 75% led indicator is lit Ua8V 100% led indicator is lit Package Included: 3 x 4S Single 3.7V 18650 Lithium Battery Capacity Indicator Module