"Load average" / Sleep counter /?

On a Linux I can monitor load counters for instance to have some first indicators when a system might behave unexpectedly. I can spot a broken laptop battery by looking at the expected hours of battery power the OS estimates.

Would it make sense to have some simple such indicators in the beaconing packets? Like number of active cycles vs. sleeping cycles (if that makes sense?). Or ideally, even the expected remaining life time of the sticker calculated from the battery voltage change within a certain time frame,.

That way we could schedule maintenance on our existing setup more sanely, or report issues earlier, before the battery level advertised by the beacons indicates a low battery level.