iPhone 6s plus, iOS 9.1 beta 3 severe battery drain

Is anyone experiencing a severe battery drain with this build?


I have made it a habit to charge my iphone to 100% before I sleep so that it will not be charging overnight. I normally have from 85-95% battery after I wake up from approximately 7 hours of sleep. However, after this update I now have about 30% when I wake up on normal mode and 60% battery left on low battery mode. Both instances are a great cause of concern because the phone should not be consuming that much power during idle.


I have checked my hardware at the genius bar with them stating that it is definitely a software issue. The diagnosis log that they refused to let me obtain personally shows that my battery goes down almost faster when I am asleep and not using the device than when I am awake and using it on a regular basis.

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ray_cheng
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Same problem here. Previously, in normal usage, battery used to last from 8 am to afternoon next day. Now, by 8 pm (of the charge day) I've got about 10%...

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UserMiguel
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Same problem. Battery overnight does not go down, still 100% at 7:00 am. But at 1 pm i had only 45% without using the phone much.

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Marcink
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What does Battery say was using the background usage? Wife had an issue with Facebook, it had 3 hours background use! Hmmm.

Posted by
Mr Zippy
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Same here on build 13B5130b on an iPhone 6. Beta 2 was functioning great however with the move to beta 3 last week my battery immediately took a huge hit, my phone would last consistently all day (6am until 11pm) is dead at 6pm, My apple watch will last no longer than 4-5pm each day, and I would usually end the day with a 10% charge around 11pm. As close as I can tell, the apple watch mail app is killing the battery life. I am going to disable it and see if life returns. This is the first time in recent memory I was frustrated with running beta software. Painful.

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mixmaven
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It's not possible to overcharge these batteries. They're designed so that they discharge and recharge slowly while they're plugged in so nothing bad happens.

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Jack Haal
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My issue appears to be associated with the Apple Watch. I left my watch at home today and my phone use was back to normal 43% at 7pm. I will reset the watch and start new and see if it clears up.

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mixmaven
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I reset the watch and set it again as a new watch, it fixed the issue. At 11pm and 54% left. Before I was running dead at 4pm on the watch and 6pm on the phone. Phone is 40%

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mixmaven
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