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djr7572

macrumors 6502
Original poster
Jun 29, 2011
479
97
Normally I'm not the type to obsess about battery life. Typically, I get solid battery performance so it's not something I've been thinking about - until this afternoon. I have an iPhone 11, running the latest 13.4

So, started with a full charge around 9:00 this morning, no issues. I had been casting YouTube from my phone to my TV later in the afternoon ... I'd say somewhere between an hour to an hour and a half of YouTube casting (that's a guess - could've been a lot longer than that). Had set my phone down for a while, and at that point I was sitting at about 73% ... came back a little bit later and my phone was pretty warm ... which doesn't happen to me very often so I thought that was unusual. I looked at my battery and I had plummeted down to about 19%! I usually don't have issues with YouTube frying my battery like that so I was really surprised. If you look at my photos, you can see where my battery nose dived.

For those of you that are really good at battery analysis, can you look at my photos and see if something doesn't look right? Unfortunately, YouTube doesn't show on there because I went and deleted it out of a panic. But as I recall from earlier, it was at the top of the list using well over 30% (I'd say maybe even into the 40-ish percentage). I've heard that it's not unsual that YouTube can be a battery hog, but that nose dive in the graph just doesn't seem right. It's like it fell off the cliff.

Any feedback would be appreciated - thanks
 

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Has this happened more than once? Could just be a one-off. Try installing YouTube again and see if you can reproduce a similar behavior.
 
I'd say YouTube was running in the background for 3 hours

I guess I had YouTube running (and casting) a lot longer than I thought. That would do it!
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Has this happened more than once? Could just be a one-off. Try installing YouTube again and see if you can reproduce a similar behavior.

No, I've never had abnormal battery drain issues on any iPhone. Hasn't YouTube always been a battery hog? I think in this case I simply had YouTube running (and casting) for a lot longer than I had thought. I deleted the app and then redownloaded it the next day.

Does it make a big difference to turn off background refresh?
 
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No, I've never had abnormal battery drain issues on any iPhone. Hasn't YouTube always been a battery hog? I think in this case I simply had YouTube running (and casting) for a lot longer than I had thought. I deleted the app and then redownloaded it the next day.

Does it make a big difference to turn off background refresh?
Unless it’s an app like News or Facebook I don’t see a need for Background Refresh to be ON.
YouTube definitely is a battery hog and most of it comes from playing the content on the phone’s display but when you’re casting it to a TV it only needs to communicate the details of the URL and the progress etc so it shouldn’t be excessive.

See if it happens again after you’ve reinstalled the app. I’m fairly positive you won’t be experiencing the issue again.
 
Unless it’s an app like News or Facebook I don’t see a need for Background Refresh to be ON.
YouTube definitely is a battery hog and most of it comes from playing the content on the phone’s display but when you’re casting it to a TV it only needs to communicate the details of the URL and the progress etc so it shouldn’t be excessive.

See if it happens again after you’ve reinstalled the app. I’m fairly positive you won’t be experiencing the issue again.

Appeciate your help! I've gone through all my apps and turned off Background refresh on the ones that really don't need it.
 
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