Hi to everyone, first post! 
Someone scared about Nexus 4 battery life too
I'm ""new"" to android (I just had a Wildfire long time ago, I can't consider that an smartphone...), im coming from an iPhone 4, a two years old phone with a great battery life. I didn't have email sinced but the rest was standar use. I didnt have to worry about having GPS on or not, having auto-brightness on or not, it was all auto and great:
I use google maps - gps turns on
I use endomondo - gps turns on
I leave the app, it turns off
music in the background, whatsapping all day long, foursuare checkins...etc
battery arrived to the night easily at 30-40% even more
Thursday arrived my Nexus, first day doesnt count, I started installing a lot of apps, testing evertything, showing it to friends, etc
First issue, I find it takes a long time to charge...I charged it in airplane mode and it took more than 3 hours to charge....OMG! is that normal? I wasnt using it, I was slepping
Yesterday night the same...3 hours to charge in airplane mode, I use airplane mode so nobody wakes me with a call and I was guessing being in airplane mode is the closest to be switched off
iortiz55, I have the same drain issue with the battery, I start using Whatsapp and I see how the battery goes down super fast....it's crazy...10%? in 15minutes? really??
I had GPS on for the apps when they want to use it, and also autobrightnes, and autosync...I only have wifi at my place...
Now im switching all this trinity (GPS,Autobright, and autosync) and see what happens but I dont like switching off stuff....I want to use all the features of my phone and get at least 1 day battery, no problem for me charging it every night....but I think I'm not getting 12hours...
I switched from iOS to Android looking for full integration with google (something I love gmail, chrome, maps, contacts) and freedom
Also I feel that android on Nexus 4 runs smooth and amazingly fast
But why they manage so bad the battery? why they have this autolocation reporting, history and blabla switched on from the beginning?
They should give users and phone pre-configured to last at least a day with normal use....no wonder why iPhone sell so much, they work great from the beginning, not having to look on forums for solutions
And why I cant have a percentage showing battery life in notification bar in 4.2.1? its necessary to download an app for that?
all this wait for 2 weeks to see normal battery...make full discharge and charge sound stupid to me....
If battery doesnt get better, im returning my Nexus 4 and waiting for a better android

Someone scared about Nexus 4 battery life too
I'm ""new"" to android (I just had a Wildfire long time ago, I can't consider that an smartphone...), im coming from an iPhone 4, a two years old phone with a great battery life. I didn't have email sinced but the rest was standar use. I didnt have to worry about having GPS on or not, having auto-brightness on or not, it was all auto and great:
I use google maps - gps turns on
I use endomondo - gps turns on
I leave the app, it turns off
music in the background, whatsapping all day long, foursuare checkins...etc
battery arrived to the night easily at 30-40% even more
Thursday arrived my Nexus, first day doesnt count, I started installing a lot of apps, testing evertything, showing it to friends, etc
First issue, I find it takes a long time to charge...I charged it in airplane mode and it took more than 3 hours to charge....OMG! is that normal? I wasnt using it, I was slepping
Yesterday night the same...3 hours to charge in airplane mode, I use airplane mode so nobody wakes me with a call and I was guessing being in airplane mode is the closest to be switched off
iortiz55, I have the same drain issue with the battery, I start using Whatsapp and I see how the battery goes down super fast....it's crazy...10%? in 15minutes? really??
I had GPS on for the apps when they want to use it, and also autobrightnes, and autosync...I only have wifi at my place...
Now im switching all this trinity (GPS,Autobright, and autosync) and see what happens but I dont like switching off stuff....I want to use all the features of my phone and get at least 1 day battery, no problem for me charging it every night....but I think I'm not getting 12hours...
I switched from iOS to Android looking for full integration with google (something I love gmail, chrome, maps, contacts) and freedom
Also I feel that android on Nexus 4 runs smooth and amazingly fast
But why they manage so bad the battery? why they have this autolocation reporting, history and blabla switched on from the beginning?
They should give users and phone pre-configured to last at least a day with normal use....no wonder why iPhone sell so much, they work great from the beginning, not having to look on forums for solutions
And why I cant have a percentage showing battery life in notification bar in 4.2.1? its necessary to download an app for that?
all this wait for 2 weeks to see normal battery...make full discharge and charge sound stupid to me....
If battery doesnt get better, im returning my Nexus 4 and waiting for a better android