My cruel Enduro is brutally aggressive in juicing battery

My point was not the incredible speed/rate of the drain although that was the original thing to be tested. My point was simply the negative battery level.

I bought my Enduro appr. 4 months ago and  first two months it needed appr. 2%/day if I did not record activities and used battery saver for 8 hours per day.

This gradually went up to appr. 4-5%/day, the degradation was too fast, so my idea was to let battery level drop below to 20% which I had not ever let.

The purpose of my test was to be sure that Enduro’s battery  was properly calibrated. Using full brightness with no timeout I could easily reach 0.1% when the display was still as bright as a Christmas tree.  After getting the critical battery level message I waited for the auto shutdown which came a bit  suspiciously late, but within 15 minutes.

5 minutes after plugging my Enduro on a charger I checked the battery level, which was minus 1%.

I will see whether this drill helped and my Enduro will get back to the 2%/day or not.

One day was not enough to test smartwatch mode, but I had long walk/hike today, which took 9 hours. Using only GPS, BT was on since my phone was with me, HR came from F6X via “broadcast during activities”, and it consumed 15% or so, so appr. 1.7%/h.

A bug happened, and it was the reason of using HR via F6X: after anhour or so Enduro disconnected both from Garmin HRM-3 and a Suunto footpod (both are only ANT+) and was not able to re-connect as if its ANT+ hardware had been switched off.

It was the 2nd time in 4 months and I have not the slightest clue what triggered it this time or at the other time. It is not hardware related error, because I could not connect none of the sensors at the end of my walk, I made a stop&save, then 2 minutes later I opened the same sports app again and voila both sensors were connected. So it seems for some reason the Ant+ hardware was busy.

From the 3 whole days the were 2 when the daily smartwatch consumption was 2%, a walk of 60 minutes tool 2%, but on the 3rd day the watch in smartwatch mode consumed 4%.

So the situation is much better after the enforced full discharge.

The day with extra discharge may have been the consequence of inaccurate battery level reporting, so 2%, 2%, 4% should read as 8/3% per day.  

Or it comes from the fact that during this 3rd day my phone was not in my pocket, but sometimes within 2 meters, sometimes a bit away like 10 meters away. I mean multiple connects and disconnects between the phone and the watch may have a substantial impact on battery discharge.