The next version is in development!

To really realize the dream of being able to make these throwable micro-multimeters, it should be able to run off a tiny tiny power supply. That for me would be a CR2032 battery.

At 3V there is a a peaky spike of 25mA, if we want to be really pessimistic, we would only be able to get 40% capacity out of the 225mAh battery, which is 90mAh, which works out to 3 hours under constant load.

But the average draw is 13mA, which works out to about 75% of the rated capacity, 170mAh, which works out to approximately 10 hours. The actual time of running this device should then fall between 3 to 10 hours.

One way to extend this is to include a hall-effect sensor that can be used to wake up and sleep the module - this would be useful when you have no access to the module - think about when it is in an enclosure.

Reference

https://www.embedded.com/how-much-energy-can-you-really-get-from-a-coin-cell/