iPhone 5 - Battery life excellent with wifi off, sucks on

[Eric-PTEK]

My i5 would not last the day on a single charge. I could sit and watch it drop at times.

I'd go from 100 percent to 65 percent by lunch with hardly any usage at all.

I turned off my wifi and now the phone will hardly lose any charge overnight at all. I went 36 hours before it hit 12 percent with decent usage and only turning on the wifi to tether for 15-20 minutes a few times.

I even have ask to join networks turned off.

Anyone else with poor battery life seen a difference with wifi?

I figured it was going to do more with LTE but that does not seem to be the case.

I also find tethering pretty much useless, I'm constantly having to restart the phone, or shut off/turn on the wireless and reconnect to get anywhere for more than 5-10 minutes at a time.

 

[Nikhil72]

Spent most of yesterday on wifi at home with LTE on and I was getting just over 8h usage (all with screen on) and 18h standby

 

[technopimp]

Look at your usage. If your standby and usage time are the same, something's wrong. I've had that happen from time to time. Only way I could resolve was to restore as new. Haven't had it on the 5 yet, but the 4 did it probably once every 2-3 months for no discernible reason.

 

[jlake02]

Wifi is obviously a drain on battery but your case seems extreme. Something isn't right. I have mine on all the time and get solid battery life.

Also, remember: if you're turning it off all your data is coming via the tower. Unless you have unlimited data you might run into overages.