Develop Bugs

[Q] Battery charges to only 80%

I own a Samsung Galaxy Nexus (I9250 GSM Model - Android 4.2.1, Stock Kernel and ROM, Yakju Maguro model, ClockWork Mod Recovery 6.0.3.4) and for the past month i've been having problems charging my phone. It charges only to 80% of it's full capacity. I changed the charger, reset factory settings, rooted the phone but to no use. When I checked the battery usage, I found that Android has been using major part of the battery. Please help. Here are some pics.
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Also suggest the best Custom ROM for my phone.

[Q] Phone will randomly turn off and have low battery when I reboot

I'm on my 2nd S3 as my first one died of a board failure a couple of weeks back so I had to trade it for a refurb. This one I've got has given me some problems. The biggest one is the phone will randomly turn off without warning and won't turn on again without a battery pull. Sometimes but not always, the battery will just drop to nearly dead. The phone is currently running CM11 but I don't believe that's the problem because my other one had CM11 also and it gave me no problems. Does anybody have any ideas why this is happening?
EDIT: I switched batteries thinking it was the battery first but it still does it with a new battery
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What is mmcpd/0 and why is it eating all my battery?

So, I've been finding myself losing ~50% battery in around 4 hours. Looking at Battery Stats gives me:
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So... what the heck is that, and why is it eating all my battery?

What rom are you on?

Jedi Master X2. I also posted there, and the people on that thread directed me to Agni Kernel, which fixed my problem and then some (~18 hours on battery under normal usage now, which is better than it ever was.) So, problem solved, though I'm still curious why this just started happening all of a sudden (I've been on the same kernel for months with no problems before this week.)

What is HTCmode?

Hello
I have a Problem my Battery is extrem fast empty if I look into my Battery I found HTCmode but what is it?
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It includes different system processes but you can take a look if you use gsam monitor widget, there you can see better which processes it includes...I don't have this problem, okay I use a custom Rom and those are fixing most things so yea normally that shouldn't drain much battery

I also use maximus Rom that's strange

Yea maximusHD is as close as possible to stock, but even with maximusHD I didn't had any problems with that even if it sometimes showed a bit more percentage with that. Htcmode just handles most of HTC stuff like a all in one service

Battery drain after screen repair

About a week ago my phone had to get its screen replaced and since then the battery drain has been severe.
I can actually watch its % go down - %50+/- in 1/2 an hour!?
I've tried with my spare battery and I see the same issue.
I'm going to the repair store soon to speak to them about this.
Has anyone heard of this happening - with any phone after screen repair?
I think it might not be an official screen they put in.
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The above image was taken from %100 - screen off while at work.
There's a drop where the phone bugged out and had to reboot.
No battery hog services in the background that I can see