Apple Watch update 10.3 battery now lasted two hrs?

I had the same issue. It started about a week after installing 10.3. I was used to get about 48h on my Ultra and it dropped to less than 24 h. After closing all apps, I performed a soft reset (crown + button for a few seconds until the Apple logo appears) and removing all third party apps it is back to normal. I will now reinstall the third party apps one at a time to check if any of them causes the issue to come back. My guess is that one of the apps did not handle the update gracefully. I think we have all seen this before with iOS apps. Some of them will crash before they can start after OS updates. Hope this helps.

Any chance you had widgets installed before the update? It helped some users to remove the widgets to get their battery life back to normal.

Use the Smart Stack to show timely widgets on Apple Watch - Apple Support

Have a look at these discussions and suggestions:

10.2 watch update and battery drain - Apple Community

has anyone had battery issues with the 10… - Apple Community

Hi everybody:

This weekend i try this:

1. soft restart

2. uninstall all third app

3. soft restart

4.off / on

5.third app instaled - i was surprised that most app wish to get location services.....

6. charging watch optimazed by apple watch

Result

Sun-Mo - 80% >66% (21.30-6.15) - sleep mode 22.00-05.30

07.15 charging 100% (charging is now slowly like before)

08.00 - 100% still

I will post results after week usation.....

Well all I got on with apple chat and my watch 4 with cellular was long out of service contract. But she ran a test and found my battery was in need of service. For $99 they replaced my watch with a 5 with cellular and other than the first day getting it up to date and loading from my last backup, I have had great battery life. After a full day I set it on the charger with 50% battery left.

for what these cost I figured best $99 I have ever spent with apple!

Translate from Danish: Prøv en reset ved at holde knappen inde, indtil Apple logoet kommer frem. Det har hjulpet her hos mig.

Nu virker det med normal batteri tid igen.

Hilsen Uffe.

Try to unpair from iPhone then reconnect. This has worked for me in the past.

Same story here guys.

watch 7 gps,

ever since I installed update last September, it bricked my watch. Suddenly the battery went down from 100% to 0% in 2h (in low battery mode) and day before the update it could last 35h.

I’ve spent endless hours talking to Apple support and visiting Apple Store .

this is what I heard in Apple Store :

• after full checkup we can confirm that everything is ok with your hardware
• theres some software issue
• we can only restore it for you (I did restoring myself 4x btw) and we can’t upgrade it for you

this is what I heard from Apple support :

• even technical support can not downgrade your watch unless the installed system is beta version
• remember that all software updates are optional

so technically speaking I’ve spent few hundred bucks on a device that stopped working due to the problem with coding in one of the updates and I’m to bare full responsibility for that and my choice is to live with it and have 2h of usage after each full charge or to buy new device

great 👌🏻👍🏻

I believe it has something to do with the two types of charging. When you put it on the charger and tap the lightning, bolt graphic top left, it will tell you if it is charging to full or if it is doing a slow charge to optimize the battery. Before the update, it used to still manage to do a safety charge overnight. With the new update, I believe it allows the watch to drain all the way down before it does recharge in the hope that that prolongs the life of the battery. If you want it to charge to full overnight , then tap the lightning bolt logo top left and select charge to full now. It will charge it to full, but I don’t know what the impact is on the longevity of the battery.

That’s not nothing but…that’s nothing.

mine drains to zero in 3h in low battery mode without any apps installed and ecg and heart rate sensors don’t work.

and in Apple Store they told me it’s software issue and all hardware works perfectly . I asked them “so if I only updated it to your system and it bricked my watch then what am I supposed to do”. They said “it’s over 1 year old so you can replace it” and they gave me a quote which is basically price of new Apple Watch . So frustrated.

Another update.

after almost 9-10months of using Apple Watch as a…well… just a watch that plays music through AirPods (cause as I mentioned before ecg and heartbeat sensors do not work and battery in energy saving mode lasts around 3-4h) I had another visit to the store.

May first I was seeking help from professional technical support through official app beacie I got tired of those visits at the store.

So I described my problem inside the app (without chatting with live agent) and was surprised seeing options I haven’t been given before. That is : sending replacement to me (and then I send old watch to them) or dropping it at the store. It seemed as if Apple admitted that issue exists and wanted to do something with it.

so I chose dropping it at the store because the first option required using my card to secure some deposit in case if I don’t send my old device back upon receiving new one.

When coming to the store, surprisingly they didn’t know what I came for. 🤔

secondly, they needed to perform a check again. And there was another surprise (or rather shock). Remember how I mentioned in original comment that after first check all hardware was fine but there was definitely software glitch confirmed by Apple staff? Well, for last 8 months I used it for morning running from time to time and rest of time it was laying down on soft fabric in room temperature, and this time when the guy did hardware check, he said that there’s problem with sensors and with battery . I mean …really?? So either first check was a failure or the device is falling apart by itself .

So they said I can send it back and if I qualify for battery replacement then it’ll be 14.000 yen (of course when I asked at the end that was when he’s given me actual price which includes tax) and that if they disagree that it’s just battery issue (for instance they’ll confirm that the sensor needs replacement) it might cost more, and also that after I receive the device even though it will be brand new watch gen 7 (because they can’t replace the battery actually, they can only replace the whole device and charge for what normally would qualify as battery replacement) I won’t be able to purchase AppleCare because it’s not a latest device that’s being sold on daily basis but a replacement for old one. Again…really?

not to mention that guy at the store said that AppleCare can be purchased within max 30days of product purchase.

personally I’m wondering if staff in japan is completely not aware and not properly trained (I mean without any biases I can tell that in Japan 99,9% people I’ve met were not aware of 95% of iPhone features at least) and why do they not pick people who can speak English (there’s quite large number of tourists and foreigners living in japan). Because what the staff tells you and what’s available online are two very different things.

so anyway, I might get new gen 7 watch and might or might not (which would be weird in that case) qualify for AppleCare . And what if sensors will stop working after a month or after first update? What then?

My Apple watch Ultra (1st) now lasts only 24-30 hours. Before I would get 2+ days. I have remove all my widgets and did a hard restart, but not much different

yesterday I deleted the 3rd party apps and got 7 hrs. I put it on the charger and this morning I woke to an uncharged watch :(.

I have the se2 and despite two complete hard restarts and reinstalling the whole OS twice from a factory reset, with no additional apps or music etc, battery still drains in approx 4-5 hrs. Basically can’t use it any more. It’s like bricking the watch. Apple, sort this out.

Since I updated my apple watch the power draines within an hour. Once on the charger it takes hours to charge even the smallest percent then overheats which pauses charging. I turned on low power mode, deleted apps from my phone, turned off push notifications and mirroring, used different charging stations and nothing has helped. At this point my watch is useless & I am left with nothing but frustration.