Help Nexus 4 battery

[horrocksy]

I was on my nexus 4 this afternoon and I had 30% battery I then noticed the battery started to drop rapidly and a new app appear on the battery usage list called shell is this a problem?(the phone also shot up to 48 centigrade)

 

[acejavelin]

I was on my nexus 4 this afternoon and I had 30% battery I then noticed the battery started to drop rapidly and a new app appear on the battery usage list called shell is this a problem?(the phone also shot up to 48 centigrade)

"Shell" is a command line application, hard to tell exactly what is causing the issue with out GSAM/BBS installed and gathering info.

It may or may not have been related to the battery being low but it looks like it was holding the wake lock pretty hard. 48C (118F) is kind of high, but not in the dangerous realm yet, something was pulling a lot of current off the battery.

 

[horrocksy]

The shell operation was not showing on my battery usage screen at about 40% charge but then the battery dropped 10% in less than a minute and it appeared on the list for battery usage. A few miles later (I was on a bus) the battery had dropped a further 20% and I took a screen shot at 10% and shell was the most power intensive programme. 2 minutes later I ran out of power completely
. To summarise it used about 80% of the battery life from when it first showed up on the list. This often happens when I'm connected to 3g if that helps.

 

[John Bean]

Had you been using a PC connection with ADB (or some application that uses ADB)?

I ask because I once had this same issue after aborting a "Nexus Root Toolkit" session because of a PC crash; it left shell running on the N4 (presumably trying to connect) which killed the battery very quickly. I restarted the phone and everything went back to normal.

 

[horrocksy]

At the moment my nexus is running stock and it doesn't even have dev mode unlocked

 

[acejavelin]

At the moment my nexus is running stock and it doesn't even have dev mode unlocked

How old is your Nexus... it might be time to replace the battery.

 

[horrocksy]

The nexus is just over a year old and today the battery has lasted much better (on the same work load) as its still on 60% not 0

 

[SiempreTuna]

Times like this you wish you had a command line