iPhone iOS 8.0.2 on iPhone 5S battery drain

alexhardaker

macrumors 6502
Original poster
Sep 12, 2014
365
366
Has anyone else noticed more severe battery drain on iOS 8.0.2 on the iPhone 5S? Within 10 minutes or so of using Safari I'm down from 100% to 92% (this is an estimation - I haven't made a note of how long it takes to drain using specific apps yet). This phone was new when I bought it, but the warranty has run out recently (it was bought off eBay). It's a shame iOS doesn't have the power of OS X where you can see exactly what is causing this.
 

Simplicated

macrumors 65816
Sep 20, 2008
1,422
254
Waterloo, Ontario, Canada
I've noticed some serious battery drain on my iPhone 5, which has airplane mode on all-day. The battery can go down 15% every night without me even touching it at all.

The battery life on my iPhone 6, however, is phenomenal.
 

alexhardaker

macrumors 6502
Original poster
Sep 12, 2014
365
366
Is there actually anything we can do to help sort this out? Or do we have to wait for 8.1 to sort this out?
 

SandboxGeneral

Moderator emeritus
Sep 8, 2010
26,236
9,517
Detroit
Yes I was having some serious battery drainage on my 5s. I kept all the settings the same as I always do when I have good battery usage but it was still dropping too fast.

The last thing I did was totally disable 'Location based alerts' and since then, I've been having decent usage again.
 

alexhardaker

macrumors 6502
Original poster
Sep 12, 2014
365
366
I think I'll test it with a couple or apps, then leave it on 100% off charge over night to see what the drain is like. Then I'll either restore it and test again or will wait til 8.1.
 
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