Tired of not knowing when or if your batteries are low so this we bring you a solution from Happymodel the Breath LED.
Happymodels breath LED is a battery voltage indicator. Solder it directly to the VCC and Ground pad of the battery lead and it will give you a live indication of the battery voltage.
Brand Name: Happymodel
Work voltage: 3.7v~16v
Customized for Mobula7 HD
Breath Light color indicates:
If the single cell of voltage from the battery > 3.6v, the color turn on Green
If the single cell of voltage from the battery< 3.3v, the color turn on Red