Battery life of Series 4 during sleep

swarlos

macrumors 6502a
Original poster
Oct 18, 2015
580
465
So last night I do what I normally do with my  watch before falling asleep, ensure it’s in DND mode and that theater mode is turned on so it’s not constantly waking the screen at night while I flail about during the course of my sleeping.

I checked the percentage before I shut my eyes and it was at 45% this was around 11pm and when I woke up at 6am for school my watch was at 13% I was shocked. The watch wasn’t doing anything, I had theater mode and DND enabled so the screen wasn’t turning on and I wasn’t getting notifications so how could it drop 32% in 6 hours. I didn’t get a chance to charge it so by 7:30am it was completely dead.

Should I take it to the  store?
 

F23

macrumors member
Jan 4, 2014
98
30
that's normal battery life. 30% per 6 hours. 60% 12 hours. 90% 18 hours. don't wear it during sleep if battery is a concern.
 

neutrino23

macrumors 68000
Feb 14, 2003
1,700
203
SF Bay area
I would try some simple things first like restarting or even unpair/pair. When I wear the AW4 at night I just turn on theater mode. I go to bed with 100% and wake up with 99 or 100%. Even when I wear the watch all day I end up with about 40% battery capacity.

If it doesn’t improve I’d go to the Apple store. You might even get help on line. Try to sign up for a genius appointment then accept the option for an online chat, if they offer it. Maybe they can help you without a trip to town.
 

pscan

macrumors newbie
Sep 6, 2010
2
0
That’s what my Series 4 goes down by if I wear it asleep with DND + theater mode alone. I doubt there’s anything wrong with your watch – you should just turn on airplane mode, because data which is what’s using most of the power. My battery goes down by 15% or so overnight (8 hours) with DND + theater mode + airplane mode.
 

Knight3

Suspended
Oct 19, 2018
280
252
So last night I do what I normally do with my  watch before falling asleep, ensure it’s in DND mode and that theater mode is turned on so it’s not constantly waking the screen at night while I flail about during the course of my sleeping.

I checked the percentage before I shut my eyes and it was at 45% this was around 11pm and when I woke up at 6am for school my watch was at 13% I was shocked. The watch wasn’t doing anything, I had theater mode and DND enabled so the screen wasn’t turning on and I wasn’t getting notifications so how could it drop 32% in 6 hours. I didn’t get a chance to charge it so by 7:30am it was completely dead.

Should I take it to the  store?
Since it’s just happened once I’d say wait and observe for another night or two. If it happens again, you could always try unpairing and re-pairing.
 
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dgreening

macrumors regular
May 12, 2010
191
101
I always wear mine when I sleep and do the same as you. DND and Theatre Mode, it usually drops maybe 5% but the same night you are referring to mine lost a lot more than 5%. I only noticed it because I wake up and go workout. Usually when I get home from working out it is around 78% (been pretty consistent) but that morning it was in the low 60%. I didn't think too much of it because this morning it was back to what I was expecting. I would agree with @Knight3 just observe for a few more nights before taking it in.
 

Cnasty

macrumors 68040
Jul 2, 2008
3,179
1,877
I always sleep with my watch, charge it for almost an hour on my 7.5w Nomad Base Station while I shower and get ready in the morning and I am well into the 80s% or so and a great routine with sleep tracking added in.
 

jdsmitty10

macrumors regular
Sep 9, 2016
174
53
When do you charge it if you wear it to sleep? I slept with mine on last night and charged while getting ready for work. Woke up with 62% and put on my wrist to go to work at 96%. about 35 min charge.. I think this will be my routine for now on.. at first I was just taking it off and charging over night but its nice to check the time/snooze my alarm from my wrist instead of fumbling for my phone..
 
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dgreening

macrumors regular
May 12, 2010
191
101
When do you charge it if you wear it to sleep? I slept with mine on last night and charged while getting ready for work. Woke up with 62% and put on my wrist to go to work at 96%. about 35 min charge.. I think this will be my routine for now on.. at first I was just taking it off and charging over night but its nice to check the time/snooze my alarm from my wrist instead of fumbling for my phone..
My routine is almost the same. Put it on the charger while getting ready for work but I also put on the charger about 30 minutes before I go to bed. With those 2 times it stays charged without any issues.
 

swarlos

macrumors 6502a
Original poster
Oct 18, 2015
580
465
When do you charge it if you wear it to sleep? I slept with mine on last night and charged while getting ready for work. Woke up with 62% and put on my wrist to go to work at 96%. about 35 min charge.. I think this will be my routine for now on.. at first I was just taking it off and charging over night but its nice to check the time/snooze my alarm from my wrist instead of fumbling for my phone..
I didn’t have time to charge it that morning as I woke up late for school and had to leave.
 

sean000

macrumors 68000
Jul 16, 2015
1,557
1,898
Bellingham, WA
I usually charge my 40mm S4 to 100% in the evening while I'm reading, watching TV, or putting the kids to bed. I put it on again around 10:00pm or so, set it to theater mode, and let Pillow track my sleep from usually about 11:00 PM or so to 6:00 AM or so. When I wake up the battery is usually about 85%, so yeah... if it dropped twice as fast I would notice. I wore a S0 for years and every now and then it would have a bad day or two of battery life. It usually happened after an update, but other times it would be more random. A reboot usually resolve the issue, but at least once it turned out to be a misbehaving third party app.

Sean