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Watch OS 6.2.1 & Battery Life

marktiddy

marktiddy

macrumors newbie
Original poster
Oct 18, 2015
4
0
Is anyone else finding that their Apple Watch's battery life has got considerably worse since the Watch OS 6.2.1 update a couple of days ago? I've got a series 4 and could usually get 24 hours out of it...it's now down to about 15!
 
It may take severe days or longer for it to settle. That’s been my experience. It’s always been terrible immediately after an update.
 
it seems to me too that battery life took a hit. till now my watch (series 4) would last almost 2 days with a workout, lately i have to charge it every day.
 
I noticed the same drop in battery life in my Watch 3.
In the beginning I tried the usual - unpair etc... Nothing seems to work.
I begun thinking my watch was nearing its end...
And then I started to google and begun to come across similar posts. So I thought I might give it another chance
 
Mine died by the time i went bed at 11pm...but least it;s going all the way down now. Before it was dieing on like 30%
 
Me too my S3 cellular was going about 24 hour between charges with 15-25% left now I am only getting about 10 hours and its dead, no low power warning I just happen to look and its powered off.
 
For the first couple of days battery life sucked. I restarted my Watch and now I’m back to to getting 24hr+. That’s with me sleeping with my Watch on.
 
David.Pridy said:
Me too my S3 cellular was going about 24 hour between charges with 15-25% left now I am only getting about 10 hours and its dead, no low power warning I just happen to look and its powered off.
Click to expand...

Ok I unpaired and paired I seem to be back on track with my normal battery drain now
 
JBaby said:
For the first couple of days battery life sucked. I restarted my Watch and now I’m back to to getting 24hr+. That’s with me sleeping with my Watch on.
Click to expand...
That gives me some hope...I've even tried unpairing and re-pairing mine from a restore and battery life still hasn't settled...bizarrely it drops the most overnight (I wear it overnight and use a sleep tracking app)
 
marktiddy said:
That gives me some hope...I've even tried unpairing and re-pairing mine from a restore and battery life still hasn't settled...bizarrely it drops the most overnight (I wear it overnight and use a sleep tracking app)
Click to expand...

I just put my watch on to charge 2hrs ago. I was down to 39%. Stand by time was 22hrs 33min. Usage time was 3hrs 54 min. I think that’s good with AOD and Noise detection turned on. I only activate Siri with the Digital Crown.
 
marktiddy said:
That gives me some hope...I've even tried unpairing and re-pairing mine from a restore and battery life still hasn't settled...bizarrely it drops the most overnight (I wear it overnight and use a sleep tracking app)
Click to expand...
I’m noticing the same - normally drops 20% overnight but now it’s closer to 50. Also noticed if you don’t charge all the way to 100%, battery drains even faster during the day. Apple really needs to get it together.
 
Looks like the bluetooth stack has a serious bug that Watch OS 6.2.1 translates into a battery issue. I'm randomly experiencing what looks like a battery drain; my watch shows it needs to be attached to a charger but once attached to the charger it boots up and shows the battery has at least 50% charge. When it happened today I put the watch on the charger, let it boot and immediately took it off the charger. I looked at the diagnostics logs in the IOS Watch app and found a "Low Battery Log" file at the time my watch appeared to be dead. It contained the following info.

{"os_version":"Watch OS 6.2.1 (17T530)","incident_id":"1393FDBC-5B23-49E5-B2DA-BFBD414C93B5","timestamp":"2020-05-01 18:30:13.00 -0700","bug_type":"120"}
{"os_version":"Watch OS 6.2.1 (17T530)","bug_type":"120"}
Incident Identifier: 7D11A338-840E-4A59-8E2A-97F91D59EDD6
CrashReporter Key: 1025ec72ec245c9a5a7e42b2118b3ca9f8012397
Date: 2020-05-01 18:30:12 -0700
OS Version: Watch OS 6.2.1 (17T530)

bluetoothd: com.apple.BTStack PreventUserIdleSystemSleep == 255, held for 00:03:12

Foreground Applications: com.apple.ClockFace
Screen Brightness: 0.000000
Hardware Model: N121sAP (Series 3 38mm GPS)
Awake Time: 03:20:36 (12035)
Standby Time: 10:58:42 (39521)
Partial Charge: 0
Capacity: 56
Voltage: 2976 mV
VDD_OK1: 1
VDD_OK2: (null)
 
I’m curious, did you find a resolution or do we wait for an update?
My watch is experiencing pretty much the same issue, however, it shuts down at roughly the same time every day place it on the charger and within seconds is ver 50%


{"os_version":"Watch OS 6.2.1 (17T530)","incident_id":"1393FDBC-5B23-49E5-B2DA-BFBD414C93B5","timestamp":"2020-05-01 18:30:13.00 -0700","bug_type":"120"}
{"os_version":"Watch OS 6.2.1 (17T530)","bug_type":"120"}
Incident Identifier: 7D11A338-840E-4A59-8E2A-97F91D59EDD6
CrashReporter Key: 1025ec72ec245c9a5a7e42b2118b3ca9f8012397
Date: 2020-05-01 18:30:12 -0700
OS Version: Watch OS 6.2.1 (17T530)

bluetoothd: com.apple.BTStack PreventUserIdleSystemSleep == 255, held for 00:03:12

Foreground Applications: com.apple.ClockFace
Screen Brightness: 0.000000
Hardware Model: N121sAP (Series 3 38mm GPS)
Awake Time: 03:20:36 (12035)
Standby Time: 10:58:42 (39521)
Partial Charge: 0
Capacity: 56
Voltage: 2976 mV
VDD_OK1: 1
VDD_OK2: (null)
[/QUOTE]
 
My watch is still under warranty so I opened a battery issue with Apple support and sent the watch in for repair. The watch was returned to me with a diagnosis of no hardware or battery issues and a statement that the routine diagnostic procedures the technicians follow (updating internal software, draining and charging the battery and restoring/resetting the watch) likely addressed the issue I documented.

So far the low battery issue has been resolved. I'm getting no "Low battery" log diagnostics and 24-30 hours of usage before the battery reaches 5-10%.
 
There is good evidence that the diagnostics performed by the Apple Repair technician definitely reset parameters in the watch firmware. Now when I display the usage for the watch in the iPhone Watch app (General->Usage), the "Time since Last Full Charge" shows as 18,394 days, or January 1, 1970 (Unix time zero for those not familiar with computer time epochs). I have no ideas on whether incorrect time data used by the firmware was causing my problem, and, if so, how the data was corrupted but the WatchOS version is still 6.2.1(17T530) after the repair.
IMG_0609.jpeg
 
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