The battery issues and the increase in data usage issues

parish

macrumors 65816
Apr 14, 2009
1,082
1
Wilts., UK
One and the same?

I'd say yes. Anyone agree?
I'd say yes - probably.

I read somewhere (can't find it now :( ) that it has been discovered that under iOS5 the phone still uses 3G (for some things at least) even when it's connected to Wi-Fi.

I guess this would explain increased battery usage, and it would explain something that happened to me...

I was out of the country the other weekend so using Roaming Data. My plan includes 25MB Roaming Data per day. At ~6pm I got a text from Vodafone saying I was nearing my limit (I think they send them when you hit 80%) so I reduced the amount I was using the phone (was using Maps a lot). An hour later I was back on the Wi-Fi at the hotel, and stayed connected to that until we went out the following morning.

Just before midnight I got another text saying I had gone over the 25MB by 3MB - WTF :confused:

So, it seems like my phone was using 3G even when it was on Wi-Fi. Coincidently (or not) this was around the time my battery usage went bad. Up until then I'd been getting excellent usage.
 

LapsangSouchong

macrumors 65816
Original poster
Jul 15, 2010
1,349
0
the burrows
I noted a few times right after I updated my husband's 4 that his phone would use cellular data while asleep, while on wifi. So yeah, something is up.
 

scaredpoet

macrumors 604
Apr 6, 2007
6,627
342
I read somewhere (can't find it now :( ) that it has been discovered that under iOS5 the phone still uses 3G (for some things at least) even when it's connected to Wi-Fi.
And if you cared to read further, you'd also "discover" that previous iPhone models have done this as well under certain circumstances (such as when sleeping).

But there's a pretty easy way to find out if the battery and data usage issues are related...



Do this, and see if battery life improves. If it doesn't, then turn off "Documents & Data" and see if there's a change.
 
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