watchOS 4 beta 2 Battery Life

iMel

macrumors member
Aug 10, 2013
55
16
0
Los Angeles, CA
Battery life on my Series 0 has taken a HUGE hit since updating to Beta 2. (Not complaining; I know Beta Life is about living dangerously.) In my 40 minute commute to work, my battery plunged from 99% to 83%

Any of you guys figure out if it's a specific app or function that's killing it? I'm trying to uninstall any unimportant third-party apps to see if that's the culprit.

During my commutes, I use Apple Maps (iOS 11) on my phone but have turn-by-turn notifications disabled on the watch. I also had Overcast running in the foreground.
 

bthompson

macrumors regular
Jun 29, 2009
157
39
0
Same here. I don't run any third party apps. I'm considering repairing the watch but that's a pain.
 
  • Like
Reactions: dbrose

pedrowerner

macrumors regular
Aug 24, 2016
225
167
0
I can say personally that by doing a re-pairing process, my huge battery draining on beta 2 has now ceased to be, is no more, disappeared, is dead, it expired.
 
  • Like
Reactions: SDColorado

KrisLord

macrumors 68000
Sep 12, 2008
1,536
1,023
0
Northumberland, UK
I’ve noted a huge change in power drain when comparing b1 to b2.

Today I was pretty much out of power by 1pm and that’s with no usage other than being on my wrist whilst I sat still.
 

KrisLord

macrumors 68000
Sep 12, 2008
1,536
1,023
0
Northumberland, UK
I’ve noted a huge change in power drain when comparing b1 to b2.

Today I was pretty much out of power by 1pm and that’s with no usage other than being on my wrist whilst I sat still.
Further to my post an hour ago,

My watch had been on its charger and was now back at 100%.

Since then it’s only dropped 4% in an hour so perhaps some background process has finally finished.

The only other minor things I changed (but I did this at about 11am today) was to remove excess Watch faces (including the toy story faces and the Siri face) and switch the side button to show favourite apps rather than recent. I’ve no idea I’d these changes had any impact on battery life.
 

kitchenmotors

macrumors newbie
Jun 29, 2010
2
0
0
I can confirm repairing works. My battery life was at 50% within 5 hours and now it’s back to normal.
 

iMel

macrumors member
Aug 10, 2013
55
16
0
Los Angeles, CA
Yup, re-pairing fixed the beta 2 battery issue!

(Still not as good as watchOS 3 but of course, that was expected)
 
Last edited:

WaterOz

macrumors newbie
Aug 16, 2016
11
9
0
I was having similar problems on my series 0, and on reddit someone discovered this and it seems to have fixed the battery issues:

Right after updating to watchOS 4 b2, my battery life was pretty crappy. I was getting maybe 5-6 hours. Did a clean install, didn't seem to help much, battery seemed to still be depleting quickly but I found a new feature setting - Detect Gym Equipment - that was turned on by default. It's in the watch app on the phone under the Workout setting.

Turned that off and battery seems back to normal now, at 87% after 6 hours off the charger.

Update: about 9 hours now off charger and at 75%
 

antnee

macrumors regular
Jan 7, 2014
245
95
0
I was having similar problems on my series 0, and on reddit someone discovered this and it seems to have fixed the battery issues:

Right after updating to watchOS 4 b2, my battery life was pretty crappy. I was getting maybe 5-6 hours. Did a clean install, didn't seem to help much, battery seemed to still be depleting quickly but I found a new feature setting - Detect Gym Equipment - that was turned on by default. It's in the watch app on the phone under the Workout setting.

Turned that off and battery seems back to normal now, at 87% after 6 hours off the charger.

Update: about 9 hours now off charger and at 75%
Thanks for this!!
 

rwilliams

macrumors 68040
Apr 8, 2009
3,590
682
0
Raleigh, NC
I was having similar problems on my series 0, and on reddit someone discovered this and it seems to have fixed the battery issues:

Right after updating to watchOS 4 b2, my battery life was pretty crappy. I was getting maybe 5-6 hours. Did a clean install, didn't seem to help much, battery seemed to still be depleting quickly but I found a new feature setting - Detect Gym Equipment - that was turned on by default. It's in the watch app on the phone under the Workout setting.

Turned that off and battery seems back to normal now, at 87% after 6 hours off the charger.

Update: about 9 hours now off charger and at 75%
Dude, you’re beautiful! Thanks!
 

tearsen

macrumors member
Nov 26, 2014
31
13
0
I was having similar problems on my series 0, and on reddit someone discovered this and it seems to have fixed the battery issues:

Right after updating to watchOS 4 b2, my battery life was pretty crappy. I was getting maybe 5-6 hours. Did a clean install, didn't seem to help much, battery seemed to still be depleting quickly but I found a new feature setting - Detect Gym Equipment - that was turned on by default. It's in the watch app on the phone under the Workout setting.

Turned that off and battery seems back to normal now, at 87% after 6 hours off the charger.

Update: about 9 hours now off charger and at 75%

Thank You!
 

Thai

Suspended
Feb 2, 2016
1,459
836
0
Colorado
I was having similar problems on my series 0, and on reddit someone discovered this and it seems to have fixed the battery issues:

Right after updating to watchOS 4 b2, my battery life was pretty crappy. I was getting maybe 5-6 hours. Did a clean install, didn't seem to help much, battery seemed to still be depleting quickly but I found a new feature setting - Detect Gym Equipment - that was turned on by default. It's in the watch app on the phone under the Workout setting.

Turned that off and battery seems back to normal now, at 87% after 6 hours off the charger.

Update: about 9 hours now off charger and at 75%
Thanks that reddit for us...HUGE difference! Battery life back to normal! :)
 

SDColorado

Contributor
Nov 6, 2011
4,226
4,153
0
Highlands Ranch, CO
I have actually been getting much better battery life with b2 than I was with b1, but I too had the “detect gym equipment” turned on by default. Turning that off should help even more :)
 

kendo88

macrumors regular
Jun 22, 2010
195
25
0
Coventry
My battery life isn’t great. Only thing I noticed was that my iPhone has a permanent geofenced location arrow at the top of my screen, settings says that it is Apple Watch face that is using it, it never goes away
 
  • Like
Reactions: tremlock

antnee

macrumors regular
Jan 7, 2014
245
95
0
My battery life isn’t great. Only thing I noticed was that my iPhone has a permanent geofenced location arrow at the top of my screen, settings says that it is Apple Watch face that is using it, it never goes away
Have you tried repairing as new and turning off the gym detect ?
 

KrisLord

macrumors 68000
Sep 12, 2008
1,536
1,023
0
Northumberland, UK
I think resetting sync data (followed by unpair/re-pair) has fixed it. Will confirm tomorrow!

I had unpaired and repaired yesterday, tried the gym fix, tried turning off location for some apps etc....
 

mclarendude2

macrumors regular
Mar 16, 2015
148
30
0
USA
so is the battery life still not great for you guys on beta 2 or has the thing people suggested to do helped with the battery problem?