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iPhone 15 Pro Max battery draining without use

I got my iPhone 15 Pro Max 2 weeks ago and its running iOS 17.0.3. Before I sleep I left it with 100% battery charge, waking up after 7hrs my battery went to 89% without even using it. Even though I followed all the settings in the internet on how to keep my battery from draining too fast but the problem still the same. I even put it on low power mode all the time. I hope they will fix this as soon as possible.

iPhone 15 Pro Max, iOS 17

Posted on Oct 15, 2023 4:04 PM

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Posted on Oct 25, 2023 8:22 AM

Well, that's entirely unhelpful. You seem to be intentionally dismissing the point. Lots of people, me included, have noticed a significant change in battery use compared to past models/iOS. So the point isn't what the charge level is when I wake up, it's the fact that I'm seeing overnight battery discharge AT A HIGHER RATE THAN MY PRIOR PHONE/iOS. What's relevant about the "overnight" part is that it's the best, lengthy time period to compare conditions because they phone isn't used.


If, as you claim without evidence, that's just the phone doing what it's designed to do, then I'm pretty ****** that I paid so much for a phone that performs worse than the 2-year-old model it replaced.

70 replies

iPhone 15 Pro Max battery draining without use

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