SF7 SF8 SF9 SF10 SF11 SF12

The battery will last for {{totalYears|round(1)}} years*. The sensor will draw {{hourTotal*1000|round}}uA and {{yearTotal|round}}mAh in one year.


*Double click to change value

*Battery life and estimated current are both theoretical values. Battery life is negatively affected by moisture, high temperature, dirt, vibration and more. Most battery manufacturers guarantees a maximum of 10 years battery life (storage and usage). Battery life may vary between different firmware versions, and we are always trying to increase battery life with every new version.

Old Battery life calculator