How bad is the battery drain ? and how to fix it - Xperia Z1 Q&A, Help & Troubleshooting

Ok, this may sund stupid, but i wonder, how bad is the battery drain in lollipop?
Some weeks ago my phone started to shut down at 60% or 40%, dropping down to zero in no time, but if i charge it for 15-20 seconds being turned off, the battery restores to normal, so, its a bug as I think
My phone works perfectly, no over heating, no lag, but the battery is getting quite annoying
Ive read the lollipop was bad due the battery drain, but i still have Kitkat, compilation number 14.4.A.0.108
My battery dies this way:
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So i wonder, does the battery gets even worse than this on lillipop?
Should I keep on KitKat or should I try lollipop ?(Via Sony Companion)
Or should I use the repair?
Im unsure to try to install a rom, since , is like partly rooted, says im rooted, but some root functions are disabled (Like writing on system) , besides, my phone is unlocked by carrier, and the last time i installed a rom on a phone like that, i lost the signal (After trying recovering, my Xperia T died forever)

Related

[GMaps]: The battery drain analysis

Hello all,
I just wanted to share my experience with my Nexus Battery drain and Google Maps.
I was always complaining about the horrible battery life of Nexus S compared to my previous devices (Xperia X10, Galaxy S, Desire, Hero, etc... some that I bought, loans, tests, etc..)
IMPORTANT: Since the beginning, my phone had a strict sleep policy (on screen off) and the phone was always awake.
I first remarked the battery drain with my battery status was spotting GMaps and I was right.
Just before going to sleep, I uninstalled it and just get a wonderful battery help:
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Any explanations?
Any similar experience?
I never had this problem with my Nexus, I just drained the battery a few times when I first got it so it can calibrate properly, I don't know if you have done this yet.
I don't think a battery calibration would explain a Google Maps battery drain, but yes I did it.
I even wipe battery stats 2 weeks ago at 100% power.
Same behaviour here with Google Maps. I am 99% sure that it's the Latitude that keeps updating my position all the time - although I haven't tested it, yet. Latitude should have had a setting for the position update interval.

Battery stats out of sync, help needed

Hi guys,
I charged battery till fully charged yesterday and I went to flash a firmware upgrade which took about 15 minutes in total and thereafter when my phone restarted, it showed me 39%, a huge 61% drop during this process and I checked the battery voltages in fastboot getvar all and using gsam battery app, it still showed me 4.2-4.3V which is usually a full charged battery. Now after charging a while, it suddenly goes back to 100%, any idea is this normal? This is the first time this is happening.
Hope to get some help and advice around here, thanks guys.
Screenshots after charging over an hour:
Just plugged into charger:
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After charging over an hour, suddenly it shows up at 100%
You need to re-calibrate your battery. There are a few different ways I've read people doing it. I usually just let it totally drain, then charge it to full again without messing around with it. You may want to search for a proper method.

[HELP] Battery suddenly started to drain crazy fast (More info inside)

Hi guys, like the title says the last couple of days my battery has been really terrible. I'm currently running PAC 4.3 + yank's kernel. A few weeks ago when I installed both rom & kernel I had AMAZING battery life. Like, 24 hours+ and still 20-30% remaining.
Today I listened to music on the way to college for like 15 minutes (screen was off obv), checked my mail and other social networks in the morning when I woke up and again when I reached college. It was around 50% at that time which is crazy for me already. Then I leave my phone on my desk when I go for lunch and when I come back I have only like 23% remaining. While I took the below screenshots, it already down to 19 -.-
Just wondering whether anyone could help me understand these ss? The weird part is that I had really really good battery life a week ago but I didn't change anything much really. Thanks in advance!
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Xperia Z Battery problem

Hi everyone. Last night my battery went from 100% to 11%, while i was sleeping, so i didnt used phone. Phone is 2 months old, so there shouldnt be problem with baterry. What is going on with my phone?
Software is stock Android 4.3 JB. Phone is not rooted or bl unlocked. Should i update to 4.4.2 kitkat? Sorry for bad english.
Here is screenshot.
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nidzo031 said:
Hi everyone. Last night my battery went from 100% to 11%, while i was sleeping, so i didnt used phone. Phone is 2 months old, so there shouldnt be problem with baterry. What is going on with my phone?
Software is stock Android 4.3 JB. Phone is not rooted or bl unlocked. Should i update to 4.4.2 kitkat? Sorry for bad english.
Here is screenshot.
Click to expand...
Click to collapse
Try to update then
After that make a factory reset
Discharged battery completely, charged to 100% with phone turned off, and now battery life is better then ever! After one day it spent 49% [emoji1]

[Q] Sudden battery drain

I've had this phone for about a week and this is the first instance where my phone has gone down to 10% battery in the matter in 8 hours with what I can only describe is light use. I get a few emails, most of the time it sits with the screen off. I checked the battery stats and saw Android OS at 21% usage followed by Cell Standby and Screen.
I am rooted at 5.0.1 but stock and encrypted. Only mods I have done is DPI at 493 and double tap to wake.
Anyone else experienced this before?
So I've been having that issue the past couple days too. I installed a program called BetterBatteryStats.
Yesterday I fired it up after having about half my battery drain in a matter of a few hours.
I saw that my deep sleep was about 3 hours, my awake was 8 or so hours but my screen on was only about 1 hour. Something was keeping my phone from sleeping.
I went threw and uninstalled everything I could think of that had either updated or been added since it started and now it seems to be sleeping again so I'd look at installed apps and updates.
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