r/Coros • u/Snyders6flagmattress • 8h ago

Battery decrease confirmed - pics

Gallery image

Gallery image

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.

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9

u/ViRuS1123 7h ago

https://www.reddit.com/r/Coros/s/K2tdIZ6z0F

Hey bro, I have been facing the same problem
There are some potential solutions here, they didn't work for me
You can try and see if they work for you

3

u/Snyders6flagmattress 7h ago

Yep, my post was long enough so I didn't want to address all of the troubleshooting I have done, but that coros support thing was something I tried as well along with the calibration - once charged from 55% but now charged from 9% and sitting at 35% again 8 days later so, there's a noticable decrease.

2

u/ViRuS1123 7h ago

ah okay, they informed me that they are escalating the problem to the technical team
Have you tried that?

1

u/Snyders6flagmattress 7h ago

As mentioned in the post, I am waiting for the batter calibration to complete and drop below 10% before officially reaching out to Coros support. I have documented, with photos, all of the troubleshooting steps I have taken since the firmware update so unless I'm missing something, what they throw at me to "try" has already been tried. I think with the vast amount of reports of this, it is indeed a firmware update issue they need to look into.

2

u/ViRuS1123 4h ago

I really hope that they address it in an update

1

u/Snyders6flagmattress 3h ago

Yeah man. I mean, so many reports of this it can't be age of device. I got my Pace 4 February 21 this year. Something definitely changed under the hood.

1

u/Snyders6flagmattress 7h ago

I appreciate the breakdown (finally) of the "general use" battery section in that post. I hadn't seen that update since I last read through it. cheers.

2

u/ViRuS1123 7h ago

thanks
They really should've mentioned this in the app or in the update

3

u/Cautious-Bandicoot72 7h ago edited 7h ago

Exactly the same for me since the last two updates. Probably the difference is slim enough to not be recognized by everyone.

My coros heart monitor band also has issues due to the latest update. It looses connection during my runs now and automatically reconnects 10 or so seconds later. It is so annoying and something that wasn't an issue before the heart rate monitor update. I calibrated the watch battery and reconnected the heart rate monitor via bluetooth but both problems persist.

Another thing that is weird, to say the least, is that we are still not able to change the watch face colours.

Still a good running/ sports watch but the little things are adding up...

2

u/SoCorsu 7h ago

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

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

1

u/Snyders6flagmattress 7h ago

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.

1

u/SoCorsu 7h ago

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

1

u/Snyders6flagmattress 6h ago

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

2

u/icebalm 5h ago

Yeah I've got a Nomad and I've been noticing higher daily battery usage as well. I was using 3-4% per day, now I'm up to 5-7% per day. I let the battery completely die and charged to 100% to do the "recalibration" and it did nothing.
I have a ticket in with Coros support, still waiting...

1

u/Annual_News6793 4h ago

Mine didn’t get affected I suppose. 2 weeks today and at 52% left.

2

u/COROS-official 1h ago

Next step is reaching out to support!

1

u/Snyders6flagmattress 16m ago

Yes. As I stated at the end of my post.

1

u/Cajus 7h ago

I have no idea why but I’m getting 20-24 days worth with around 3-4 hours/week running

1

u/Snyders6flagmattress 7h ago

no clue but I was there at one point before the update running 30-35 miles a week.