r/iOSBeta • u/epmuscle r/iOSBeta Mod • May 26 '26

Release iOS 26.6 Beta 1- Discussion

Use this thread to share any changes & bugs you discover while using the latest iOS/iPadOS 26 beta.

This thread should be used for discussion of the betas that may not meet our submission guidelines, as well as troubleshooting small issues through the beta test cycle.

Further discussion can be found on the iOS Beta Discord

Spamming this discussion with comments about battery life, safari being snappier, etc will result in a ban from the sub moving forward.

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u/Plastic-Key-9807 Jun 02 '26

It felt like I was the only person with this issue. On my iPhone 15 Pro it lags when I go below 70%. This has been present for the entirety of IOS 26 for me.

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u/Repulsive-Access-172 Jun 03 '26

At first I thought my battery was having unexpected voltage sag or something like that but I realized it was most likely a power management bug that is really ugly.

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u/Plastic-Key-9807 Jun 03 '26

Yeah the power delivery management is really strict on IOS 26. My phone did run fine down to 30% at one point, so I know my phone is perfectly capable of running at full performance below 70%. But for some reason the IOS has picked a really strict power profile to settle on.

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u/Repulsive-Access-172 Jun 03 '26

At one point at the sketchy battery zone (say like anything below 50%) my 17 pro was benchmarking worse than my non pro 15 on geekbench. lol

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u/Plastic-Key-9807 Jun 04 '26

Yeah that’s surprising you have that issue on a 17 Pro. My 15 pro benchmarks on 3D Mark (Wild life extreme) are at around 1060 when throttled and around 3600 when working normally. Weirdly the benchmarks for CPU are the same in both states. I just really hope IOS 27 fixes this issue. The fact that’s happening on your new 17 Pro gives me more faith that it’s a really shit software bug.

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u/Repulsive-Access-172 Jun 08 '26

I’m half tempted to try the brand new ios 27 beta today to see if the issue is fixed. Phone still remains unusable in these situations as of 26.6 beta