12V 4-Indicator Battery Detection Module

100% Brand new and high quality. 
Onboard high precision voltage detection chip and power supply voltage chip. 
3. Four onboard battery indicator light-emitting diodes (leds),three kinds of color display, red, yellow, yellow, green, representing 20%, 50%, 80%, 100% of the battery. 
Set aside all the batteries testing interface and the two positioning hole. 
PCB Size: 22.2(mm)x17.2.(mm)