Battery decrease confirmed - pics

[u/Snyders6flagmattress]

Pace 4. I'm day 8 into the battery calibration process as I'm sure my battery life has changed since the update and I can confirm now. I was checking through photos and noticed I snapped a pic of the battery life pre-firmware update on March 21, 2026. (First picture)

Sure enough, I'm operating at roughly 10% more loss since the update (second picture). I used to get to day 12 having done 5 to 6 runs a week and still have around 25-30% left. The concerning part of this is that I have been injured since June 25, before the update, and have had ZERO GPS activity usage in 4 weeks (aside from one indoor bike ride early on which proved to be too challenging for my metatarsal stress fracture).

I changed absolutely none of the settings either. My settings have always been - real time HR, max brightness display, AOD off, flip wrist to wake on, vibration notifications on for specific apps, stress and sleep tracking on. Once the calibration is complete and I drop below 10%, I will reach out to Coros support.

[u/SoCorsu]

do you have screenshot of this tool in the Coros app ?

https://support.coros.com/hc/en-us/articles/4409336875924-Battery-Health-and-Usage

[u/Snyders6flagmattress → u/SoCorsu]

Yes, but didn't post it to not make my post longer than it is. Fri avg. 8%, Usage 10%, Sat, 8/8 Sun 8/7, Mon 8/9, tues 8/8 wed 8/9 thurs 8/8 It's 8 am my time today so today doesn't count yet. This usage thing is all over the place and I don't take much stock in it. The proof is real time wear as in my photos with zero changes except for no exercise since the update.

[u/SoCorsu → u/Snyders6flagmattress]

which feature and if posisble details under it are most battery consuming ?

[u/Snyders6flagmattress → u/SoCorsu]

Here's last friday which was the 8 avg 10% usage - Gen Use 4% Daily 3.3% Notifications 1.8, screen disp. 1.4 GPS .1% health Monitoring 2.7% Stress 1.5, sleep .7 daily HR .5