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Q- is this good battery life for 4.2.1? Screen cap attached.

Updated to 4.2.1 with new 32 gig nexus 7. I've heard lots of people have been getting bad battery life with 4.2.1 update. Is mine good or bad? Attached screenshot.
Thanks
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It really depends on your screen on time. I'd say getting 5-7 hours of screen on time would be considered good battery life.
Sent from my Nexus 7 using Tapatalk 2

I personally wouldn't consider that good battery life, however I'm spoiled in a sense. I never kept my tablet stock, modded from day 1. But I'm sitting at 85% right now with 4hrs screen on browsing web and xda and it was fresh off the charger. I also get over a week of standby time when it sits.
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siralsmooth said:
I personally wouldn't consider that good battery life, however I'm spoiled in a sense. I never kept my tablet stock, modded from day 1. But I'm sitting at 85% right now with 4hrs screen on browsing web and xda and it was fresh off the charger. I also get over a week of standby time when it sits.
Sent from my Nexus 7 using XDA Premium HD app
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Which kernel and settings are you using? Thanks!
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Yes which ROM and kernel are you using? 4.2.1 seems to have bad battery life. Mine is just rooted
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[Q] Nexus 4 battering keeps discharging and recharging while plugged in

Hi everyone,
I searched the forum for a satisfactory answer yet I don't seem to find one so I'm going to ask here...
I have the habit of plugging my Nexus 4 as soon as I get home, keep it plugged overnight, and unplug it the next day when going to work. About two weeks ago I noticed that occasionally the phone indicates that the phone is fully charged yet, some minutes afterwards it indicates that the battery is at 98-99% and is charging again. I was quite intrigued so I started using some battery applications (e.g. Battery Widget Reborn) and I now notice that the "problem" is quite frequent and happens every single time the phone is plugged (I tried withe the original USB cable that came with the phone as well as with other cables). Attached is an image showing the weird pattern that I'm having...
Does any one have the same problem ? Anyone cares to explain to me why this is happening ???
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Isn't that done on purpose? You don't want to keep charging at 100% so the phone discharges after reaching 100% for a while.
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rasengan82 said:
Isn't that done on purpose? You don't want to keep charging at 100% so the phone discharges after reaching 100% for a while.
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When 100% is reached, the battery, for the best of my knowledge, is not used... Therefore, I find that it discharges very very quickly for an unused battery !

Mine does that as well. I thought that was normal?
Sent from my Nexus 4 using Tapatalk 4 Beta

It's Normal as phone batteries reach 100, discharge a bit and stays there. Btw ROM + Kernel?

sigma392 said:
It's Normal as phone batteries reach 100, discharge a bit and stays there. Btw ROM + Kernel?
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Just stock Android 4.2.2

How quickly it uses that small amount of battery that kicks it back into charge mode is going to depend on what you have running and syncing in the background.
Sent from my Nexus 4 using Tapatalk 4 Beta

[Q] anyone try "power saving mode"?

ive been messing around running the "power saving mode" for the past 3 days. its supposed to underclock tbe processor, I can confirm it does not and my battery life is basically identical to "non-power saving mode". it still runs to 1890mhz and I get the same 4-4.5hrs kn screen time on a full charge. is this a big crock of BS or is it my phone? anhone else try this and have the same issues? thanks in advance

Same for me. Im trying out BatteryGuru now.
Sent from my awesome AT&T SAMSUNG GALAXY S4 SGH-I337 using xda developers app.

CAG-man said:
Same for me. Im trying out BatteryGuru now.
Sent from my awesome AT&T SAMSUNG GALAXY S4 SGH-I337 using xda developers app.
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yea this is tbe built in one in the settings. doesnt do dik! lol

Yep. I meant to say I tried it too with tje same outcome. Hoping the BatteryGuru works.
Sent from my awesome AT&T SAMSUNG GALAXY S4 SGH-I337 using xda developers app.

well I figured it was going to cut down the mhz like it says, but thats not the case. ill just root my phone when I get home from vacation and mess with it a little more..probably just mess with root at first to underclock&undervolt then remove the bloatware I have disabled, plus a few tbat you cant disable. all before I install any custom roms.

I've had it on since I got the phone Monday and I'm at 8 and a half battery life
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Tinag379 said:
I'm at 8 and a half battery life
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whats does that mean? 8 and a half battery life. lol

All the battery saver apps are crap. Use better battery stats and learn about wake locks and how they effect your battery life. That's the only way you'll get better battery life. There is an excellent write up in the i727 forum
Sent from my SGH-I727 using xda app-developers app

jd1639 said:
All the battery saver apps are crap. Use better battery stats and learn about wake locks and how they effect your battery life. That's the only way you'll get better battery life. There is an excellent write up in the i727 forum
Sent from my SGH-I727 using xda app-developers app
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I dont have battery life problem, was just seeing if I can get more out of it. I installed better battery stats last night and it takes a few days for tbe readings to be accurate, so it claims. ill see if I can find that thread in the i727 section. thanks

My bad. I meant 8 1/2 hours battery life.
GrapeBandit said:
whats does that mean? 8 and a half battery life. lol
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Tinag379 said:
My bad. I meant 8 1/2 hours battery life.
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hows this? just captured this before i plugged it in to charge
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[Q] Battery needs calibration?

This just happened. Battery was at ~15%, when I put in the charger it jumps to ~60%.
My battery was great, without problems until this (minutes ago). What should I do? Unplug and let it discharge to about ~5% and let it charge again? How to recalibrate it?
P.S.: I have this phone for about 1 month, and never let it discharge to 0% because I heard that it can cause some problems with the nexus 4 (I let it discharge to about 5% only). Is that right?
Thanks in advance!
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[/IMG]

Let it discharge --> Fully charge + 2 hours after it hits 100% WITHOUT DISCONNECTING IT --> Repeat for better results
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failly said:
Let it discharge --> Fully charge + 2 hours after it hits 100% WITHOUT DISCONNECTING IT --> Repeat for better results
Sent from my Nexus 4 using xda app-developers app
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OK. Thanks man!
Just to be clear, when you say let it discharge, you mean discharge until it die? There is no problem in doing that?
Thanks and sorry for my noob questions.
Sent from my Nexus 4 using Tapatalk 4

LuisinhoUlisses said:
OK. Thanks man!
Just to be clear, when you say let it discharge, you mean discharge until it die? There is no problem in doing that?
Thanks and sorry for my noob questions.
Sent from my Nexus 4 using Tapatalk 4
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Yes, dischrage till the phone is dead (the extremist even turn it on few times till even the boot logo isn't show anymore) and then fully charge to 100% +2 hours.
don't forget to clean battery logs before! :]

LuisinhoUlisses said:
OK. Thanks man!
Just to be clear, when you say let it discharge, you mean discharge until it die? There is no problem in doing that?
Thanks and sorry for my noob questions.
Sent from my Nexus 4 using Tapatalk 4
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You can do both, either let it die or charge it when around 2%.
You can also wipe battery stats but that won't have any effect on the type of battery we got!
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[Q] What is wrong with my battery?

I charged my phone all night long and unplugged it. I didn't touch it for several hours and now it's at 94%.
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Nothing. Your device and all devices consume power on standby, this is unavoidable. Your battery going down 6% in almost 4.5hrs is not bad.
If you want to reduce standby consumption disable sync, GPS, mobile data, WiFi, and limit the number of background processes in developer options.
Your Android system is slightly high but really you don't have a problem.
Basically if your device is not charging it is discharging.
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davidstre said:
Nothing. Your device and all devices consume power on standby, this is unavoidable. Your battery going down 6% in almost 4.5hrs is not bad.
If you want to reduce standby consumption disable sync, GPS, mobile data, WiFi, and limit the number of background processes in developer options.
Your Android system is slightly high but really you don't have a problem.
Basically if your device is not charging it is discharging.
Sent from my SM-G900V using XDA Premium 4 mobile app
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agreed.. plus your android os is not really high its just that you werent really using the phone so the os on standby was pretty much only thing consuming your battery.. now if you did use it id guarantee your display wouldve been highest.. i removed bloat.. got all sync turned off except for gmail and a few other ones i need and i use greenify.. i leave wifi or 4g on alll the time but i think even with my stuff on id get better lofe than you did cuz the way my phone is set up.. if uoure rooted i highly recommend greenify
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this isnt the best either.. i had 33% left on this run but before i went over 1 day with over 6hrs screen on time
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Ok thanks. I am just paranoid because my 14 day return in Wednesday and I just wanted to make sure nothing was wrong.
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Did you really make a thread to ask about losing 6% battery life in 5 hours? Jesus Christ...

bloodrain954 said:
Did you really make a thread to ask about losing 6% battery life in 5 hours? Jesus Christ...
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Relax. .
6% battery in 4 hours is not bad. There does seem to be random wake locks with the s5 tho. My Note 3 had the same problems. I have no idea what triggers it.
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