Q: iPhone 5 battery life is way worse than iPhone 4

I have this same problem, I thought that my iPhone 5 battery drained quickly yesterday but I figured it was just because I was using it so much. Well I plugged it in when I went to sleep last night, I woke up in the middle of the night and unplugged it. When I woke up this morning my battery had already drained quite a bit. I looked at the usage stats and it said it was in standby for 2:45 minutes and usage was 1:45. I am not sure how its being used for almost two hours over night. It has the same setting as I restored from backup. Also, my wife has a 4S that has 6.0 and she had very little usage time, seems at least in my case to be confined to the iPhone 5. Very annoying though.

I've been reading around and it seems there are a fair amount of people having issues. Hopefully a fix comes quickly. I'm in the US, so at least in my case the issue is present over here as well, yeah I've only had the phone for about 20 hours so we still fairly new to this, I think today we will see more of these issues come up.

I have the same issue too. It claims to last 8hours of constant use but it ends up only lasting half that time. This is really a big issue and definately a complete lie too!

I have the same problem. Dropped 4% from unplugging my phone and browsing this forum for about 20 minutes. Thought a full charge cycle would help but no dice. Just as bad today.

Sorry, 8% after posting that hah.

Same here.  Full charged this morning, down to 91% with very little use in.  I manually turned off all of my apps and that seems to have slowed the drain some. 

I let it down to 10% last night before charging, I also thought a full cycle would help.

Same here. My iPhone 5 battery drains a lot faster than my iPhone 4. With 30 min of consecutive use I've dropped 40%. With my iPhone 4 after 1 hr of continuos use I'd drop 30%

This is only a suggestion.  When the iPhone 4S came out people were having the same issue.  One possible reason could be the "diagnostics and usage" section under "general settings>about".   If its set to automatically send, it could very well be the culprit.   With the iPhone 4S I think it defaulted to automatically send.   I haven't had any battery issues with my ip5, but my diag and usage is set to "don't send".   This may not be the issue, but at least check into it to rule it out. 

iPhoNettie

Was set to not send by default in my case so no difference there

Same problem here, my iPhone 4 at the end of the day used to have at least 25% battery left now I can nearly make it all day... Finish the day today with 4%... That *****! Same use as normal!

33 minutes of usage just dropped my battery from 100 to 85 percent.

Mine was set to "don't send" as well.

Well 83 percent after that post. I think this LTE is the culprit.