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

Ossyref

macrumors regular
Original poster
Apr 21, 2015
166
141
Accrington
Does anybody know what a ”normal” battery health reduction should be?

I’ve had my Apple Watch series 5 since March and its already down at 93%
 

wilberforce

macrumors 68030
Aug 15, 2020
2,559
2,745
SF Bay Area
I have had my S5 for 13 months and it is at 91% battery health.
Which seems a bit disappointing since I do not use the battery heavily, and seldom finish the day with less than 40% charge remaining.
 

Ossyref

macrumors regular
Original poster
Apr 21, 2015
166
141
Accrington
I have had my S5 for 13 months and it is at 91% battery health.
Which seems a bit disappointing since I do not use the battery heavily, and seldom finish the day with less than 40% charge remaining.

Thanks. So mine seems to be on the same rate as yours then.
 

nattK

macrumors 6502a
Sep 17, 2014
616
1,522
The Upside Down
The Series 5 I got in Nov 2019 is down to 88% so I'd say your battery's degradation rate is more or less standard.
 

wytwolf

macrumors 6502
Apr 23, 2012
254
74
My Series 5 that I purchased Nov 2019 has a battery health of 93%. I charge it about every 1.5 days as I don't use always on display. When AOD was on I would have to charge it everyday and I have found Watch OS 7 has taken a battery hit.
 

jz0309

macrumors 603
Sep 25, 2018
6,399
17,397
SoCal
My now 27 months old AW4 is at 87%, for the first year and a half I charged every other day, now daily and it’s between 35-45% typically...
There’s a long thread about watchOS 7 and battery life, if you’re interested search if that and get some more info...
 

Agile55

macrumors 6502
Jul 18, 2008
288
84
TX
Sample of one but my AW4 received 12/19 from APPL as a replacement (1st AW4 wasn't repairable under warranty) today shows 96%.

ETA > used daily, all rings closed 6 days a week & charged nitely while sleeping.
 

MetalMatt24

macrumors regular
Dec 18, 2012
158
52
I got a 44mm series 5, Titanium, and it was on 99% a month or so ago. I checked it yesterday, and to my surprise it's on 89% That put me in some serious depression today. you pay all this money and its just a timer ticking down and then it won't work.
 

jz0309

macrumors 603
Sep 25, 2018
6,399
17,397
SoCal
no electronic device that gets charged every 2nd day (or daily, or every 3 day) and is used on a daily basis will have a "battery health" of 100% after 2 or 3 years. I am NOT saying that you guys who report this are not telling the truth, but if your device displays that now, don't be surprised if you see a sudden 10% or more drop ...
Li-based rechargeable batteries age, ongoing chemical reactions during dis-charge and charge will lead to that.
 

perezr10

macrumors 68000
Jan 12, 2014
1,869
1,326
Monroe, Louisiana
no electronic device that gets charged every 2nd day (or daily, or every 3 day) and is used on a daily basis will have a "battery health" of 100% after 2 or 3 years. I am NOT saying that you guys who report this are not telling the truth, but if your device displays that now, don't be surprised if you see a sudden 10% or more drop ...
Li-based rechargeable batteries age, ongoing chemical reactions during dis-charge and charge will lead to that.
Agreed. That’s a bug with the Series 3 or 4. The battery health meter isn’t working. It’s like a car where you fill the tank and after driving 100 miles it still shows full. The problem is the meter.

I don’t think the battery health meter works very well on anything prior to the Series 5. My theory is that the meter is calibrated for the Series 5 and up. Even though it shows on older watches, I don’t think Apple has calibrated them properly yet. Or maybe never will since that feature didn’t exist when those watches were introduced.
 
  • Like
Reactions: Ent

jz0309

macrumors 603
Sep 25, 2018
6,399
17,397
SoCal
Agreed. That’s a bug with the Series 3 or 4. The battery health meter isn’t working. It’s like a car where you fill the tank and after driving 100 miles it still shows full. The problem is the meter.

I don’t think the battery health meter works very well on anything prior to the Series 5. My theory is that the meter is calibrated for the Series 5 and up. Even though it shows on older watches, I don’t think Apple has calibrated them properly yet. Or maybe never will since that feature didn’t exist when those watches were introduced.
Yea, I’m not sure either, all I can report that on my S4 it reported 90% when I first tried it and now it reads 87%, both realistic imho... but Apple is always a little on the “brighter” side as evidenced on Mac when compared to coconutbattery. Would be nice to have such a tool for the watch...
 

perezr10

macrumors 68000
Jan 12, 2014
1,869
1,326
Monroe, Louisiana
Yea, I’m not sure either, all I can report that on my S4 it reported 90% when I first tried it and now it reads 87%, both realistic imho... but Apple is always a little on the “brighter” side as evidenced on Mac when compared to coconutbattery. Would be nice to have such a tool for the watch...

My daughter has a three year old Series 3 that still shows 100%. I know that’s not right. I don’t think the battery health meter works as well with older watches that have a different sized battery or different discharge rates from the newer watches. The Series 3 has a battery that is almost 20% larger than the Series 4. And the Series 4 doesn’t have an always-on-display which affects battery discharge. It looks to me like Battery Health isn’t accurate with older watches. Maybe never will be.
 

FHoff

Contributor
Mar 21, 2020
471
1,036
Series 6 coming up on 4 months old still at 100%
 

Attachments

  • 6202CA5C-EE9A-4A59-9391-551326507E8D.png
    6202CA5C-EE9A-4A59-9391-551326507E8D.png
    44.7 KB · Views: 177

BeatCrazy

macrumors 68040
Jul 20, 2011
3,910
2,819
Series 4, 44mm, I got it on launch day. So about 2.5 years? Health shows 88%. I never get it close to zero, but since I do sleep with it on, it hovers from about 20%-90% state of charge.
 
  • Like
Reactions: jz0309

jz0309

macrumors 603
Sep 25, 2018
6,399
17,397
SoCal
Series 4, 44mm, I got it on launch day. So about 2.5 years? Health shows 88%. I never get it close to zero, but since I do sleep with it on, it hovers from about 20%-90% state of charge.
That range (~20-90) is actually OPTIMAL for battery life ...
 

BeatCrazy

macrumors 68040
Jul 20, 2011
3,910
2,819
That range (~20-90) is actually OPTIMAL for battery life ...
Right, I make an effort to keep it in that range :)

Previously, I didn't sleep with it on, so it would often be at 100% (every morning). Now I charge it while I'm working at my desk and might take it off the charger when it's 75%, maybe 90%, just depends.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.