Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Apple Watch Ultra, battery health currently?

M

msackey

macrumors 68030
Original poster
Oct 8, 2020
2,911
3,324
For those who bought an Apple Watch Ultra (the original model), I'm curious when you bought it and what your current battery health is.

Up until a few days ago or up to a week, my battery health was indicated at 100%. I checked today and it's at 98%. I bought my Watch end of September 2022.
 
  • Like
Reactions: gregorcic
Yeah I was mildly disappointed how it could go from 100 down to 98 in 7 days or so. I’m pretty sure last time I checked was just around a week ago and it indicated 100. What happened to 99? lol. Sigh.

Also optimized charge limit is turned on. I think since updating to latest watchOS, the Watch is re-figuring my habits so it’s been charging to 100% again. For a long time, it was only charging to 80% which makes sense.
 
Last edited:
  • Like
Reactions: webbuzz
msackey said:
Yeah I was mildly disappointed how it could go from 100 down to 98 in 7 days or so. I’m pretty sure last time I checked was just around a week ago and it indicated 100. What happened to 99? lol. Sigh.

Also optimized charge limit is turned on. I think since updating to latest watchOS, the Watch is re-figuring my habits so it’s been charging to 100% again. For a long time, it was only charging to 80% which makes sense.
Click to expand...


Battery degradation is not linear, and the watch estimates should be viewed as indicative.
 
  • Like
Reactions: seajewel and Putte_Kindh
100% on mine, got a few weeks after launch. I use mine fully with lots of workouts and a lot on cellular so I tax the battery quite hard. Charge it before I got to bed every night. I'm very pleased with that!
 
  • Like
Reactions: PhillyGuy72 and msackey
Got mine November 7 2022 and battery health is at 98%. Use it every day including for sleep tracking and workouts.
 
  • Like
Reactions: msackey
dubvulture said:
Got mine November 7 2022 and battery health is at 98%. Use it every day including for sleep tracking and workouts.
Click to expand...
Nice. I primarily use mine for running and listening to podcasts while running, but otherwise it's on my wrist unless I'm sleeping but I don't heavily use it except on runs.
 
  • Like
Reactions: dubvulture
Ultra 1 - Purchased a week after launch 2022
100%. Absolutely love this watch!

incoming-BE462C3A-E5A2-4200-A411-618F2C9B8D5C.PNG
incoming-27DF5141-CF09-463C-82B6-9EC34460CC75.jpeg
 
  • Like
Reactions: webbuzz, msackey and Mac2Crack
Day one purchase and my ultra had 97%. The recent forward update have more to do with the battery life over the battery actually aging. The battery dream is noticeable with the new os.
 
  • Like
  • Wow
Reactions: msackey and webbuzz
1rottenapple said:
Day one purchase and my ultra had 97%. The recent forward update have more to do with the battery life over the battery actually aging. The battery dream is noticeable with the new os.
Click to expand...
So at Day 1 your ultra was already at 97% battery health? :(
 
msackey said:
I think since updating to latest watchOS, the Watch is re-figuring my habits so it’s been charging to 100% again. For a long time, it was only charging to 80% which makes sense.
Click to expand...
That charge to 100% was probably enough to do a small/slight recalibration.

batteryuniversity.com

BU-603: How to Calibrate a “Smart” Battery

BU meta description needed...
batteryuniversity.com batteryuniversity.com

Battery Calibration - iFixit Support

All newly-installed smart batteries should be calibrated as soon as possible. This helps your system get an accurate reading on the battery’s state of charge. W
help.ifixit.com help.ifixit.com

Not calibrating shouldn’t hurt the battery cells, however, as you’ve noticed, reporting accuracy suffers causing jumps/skips. Lack of calibration is also typically the cause of problems such as:

iPhone shut off at 30% battery and wouldn… - Apple Community

discussions.apple.com discussions.apple.com

With that said, even with regular calibration, the charge state can’t be perfectly measured (i.e., it’s always best estimate).
 
Glad I posted this. Learned a lot about the watch and charging. Macrumors is so helpful unlike reddit. On Reddit Tons of pictures of the exact same thing people on there own lol. Steamdeck subreddit it’s just people posting their Steamdeck in social situations where it’s awkward to use. Tesla forums post their I got my car post which is the same car everyone there owns.

Damn I’ve been an MR member since college in early 2000s. Before the iPhone and MacBook Pro!
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back