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SW 3.90: 50%more Battery drain

again in this Firmware Release the Battery Drain is very high, more or less 50% more then usual before, use everything with standard settings as delivered, only Spo2 Measurement during night, instead of 7-8% battery drain a day i have now 16-19% a day!

Made hard reset, but didn't help!

Top Replies

Südstern over 4 years ago +5

First of all i must say, that battery drain with firmware 3.30 was very, very good. with 8-10 activities of about 45 minutes the watch worked with one cyclus about 2 weeks. And there was no difference…
f|33tStA over 4 years ago in reply to 2goBeyond +4

2goBeyond said:
There is something up with the drain (It was the same on the beta 3.77). Whatever they changed with BT seems to be the watch's interaction with phones.

Just a suggestion for people having…
snowfree52 over 4 years ago +2

same here

All Replies

0 badbri over 4 years ago

The only actual change I have made on 3.9 vs 3.3 is adding respiration in the "my day" physiological widget metric. Perhaps trackiing respiration is similar to pulse ox and causes additional battery drain. I just removed it so I'll be able to test it now.

0 badbri over 4 years ago

Oh will also add I was around .4% per hour on FW 3.3 and now I'm around 1.2%+ per hour on 3.9. I was encouraged this morning when I picked up my watch and saw it had used roughly .1%/hr overnight sitting on the bathroom counter and thought "hey maybe the battery widget is just bad and it's resuming normal consumption now down around 13% - that can happen" but now 2 hours later it is at 9%, a rate of 2% per hour.

Hopefully yet another FW update will fix this issue. I bought the 945 mostly for the reported battery life.

0 Oren over 4 years ago

Something is fishy here... See snapshot.

How come 9 hrs of 0.783% reduces only 4.4% from 100% battery?

0 badbri over 4 years ago

FWIW I have switched off the CIQ watch face to a Garmin standard one and it makes no difference. I have 3rd party data fields in my running apps but I don't see how that would make a difference in non-activity battery usage.

0 Oren over 4 years ago in reply to Oren

I also removed and reinstalled the Battery widget and the phenomena is still remaining.

Something is not right - it is either the widget is wrong in counting the current battery status or reading the consumption rate.

0 badbri over 4 years ago in reply to Oren

It's not wrong as I let mine completely drain yesterday and the battery widget correctly predicted the full drain.

0 Oren over 4 years ago in reply to badbri

And now, 15hr after fully charge, the average consumption dropped to 0.369%/hr.
Don't know why - no change of any settings/widgets on my side.

0 floppyrom over 4 years ago

With the last update the battery consumption became even more herratic. For one hour it's normal then it doubles again then it's somewhere in the middle. For sure a different behaviour than the previous firmware but still broken.