AppleWatch switching to no power when using Siri

sjordi wrote:

Yes, it's at 83% health which is pretty good.

As deggie said, you need a new battery.

think I'll just fully erase it and don't restore it to see whether it's a corrupt setting.

But I'll lose my cellular plan.

No, you won't. The watch will ask you if you want to remove it from the cellular plan or not. Just select "no".

Hello sjordi, 

Apple Support Communities is a wonderful place for help with your Apple Watch, and the unexpected shut down you’re experiencing. You’ve walked through great troubleshooting steps to help isolate the issue and work towards a resolution, and we're glad to know you're running the latest watchOS. When you previously restarted the Apple Watch, did you also restart the companion iPhone? If not, this may be a helpful step. Try restarting both the Apple Watch and companion iPhone next. 

Restart your iPhone

How to restart your Apple Watch

If you continue to have issues after restarting both devices, the next step would be to reaching out to Apple. You can find their contact options via the Get Support website. 

Take care! 

Have you checked your battery health? You may need a new battery.

No, 83% is very poor, at 80% it is time to get a new battery. Make a Genius Bar appointment and have the watch tested and the battery replaced if necessary.

We appreciate those additional details sjordi.

Although the iPhone isn’t with you during the workout/run. Restarting the companion iPhone, along with the Apple Watch as previously recommended can be helpful. If the issue persists, reaching out to Apple via the link previously provided is the next step. Get Support

Take care!

sjordi wrote:

Now if 83% is not good, then I think we don't share the same scale. To me 83% is a very good shape.

30% or under would be questionable though.

Well, the scale that Apple uses for all their rechargeable batteries is that they are fit for use until they drop to 80% or below. In fact, this is pretty much the normal scale for rechargeable batteries.

But, far be it from me to deprive you of a reason to get a new toy!

Just keep in mind that once your battery reaches 80% and below it will get even more flaky causing a myriad issues and like all lithium polymer batteries it has the potential for swelling which will push the screen away from the watch and damage the logic boards costing you much more to fix it. And the 80% replacement for lithium polymer batteries comes from the battery manufacturers not from Apple.

sjordi wrote:

But, far be it from me to deprive you of a reason to get a new toy!

Ha ha! That's correct. It could be a geeky toy.

Actually I don't consider it anymore as a toy since I use it on a daily basis for more than a gadget. It really helped me for being way lighter when going running or biking every other day, and not waking everybody up in the morning by just having it vibrate.

I meant it in the best possible way! I have a Watch 4 and have been trying to decide when to replace it. I'll probably get the battery replaced soonish as mine is also about 83% and then replace the watch after the fuss dies down when the next one is released.

deggie wrote:

and like all lithium polymer batteries it has the potential for swelling which will push the screen away from the watch and damage the logic boards costing you much more to fix it.

That's a good point. I've been putting off making arrangements to have my battery replaced as it's not quite there. But I should get on it as it will probably take ages to get an appointment.