Features:
Supply voltage range: 9-15V DC
Power consumption: <1mA can be connecting to the battery at all times
Battery fuel gauge:
> 12.5-13.5v 100%
> 12.2-12.5v 90%
> 12.0v-12.2v 70%
> 11.8v-12.0v 60%
> 11.7v -11.8v 50%
> 11.5v -11.7v 40%
> 11.3v – 11.5v 30%
> 11.2v -11.3v 20%
> 11.0v-11.2v 10%