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Terrible battery life!

I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?

f3liC said:
I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
Download humble 1.25 and your battery woes will be no more my son....

Will take you suggestion and try it out tonight. I dont mean to derail my own thread but is it possible that when I flashed back to stock ee2, it caused my signal to decrease even though I put gummycharged over it later? Ever since I had to reflash because of the power button issue, I noticed a decrease in signal strength (from mid 80s to high 90s). Sorry for all the questions!

danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Hi,
I saw your Humble ROM and was considering installing it to try to improve battery life as we'll.
What about your ROM conserves battery over the stock rom?
Now that p3droid released 2.3.4 I will certainly have to try it, do you plan to make a version of Humble using this new base?
Thanks for your work, I really am loving this new phone!
Ken
(Former DX afficianado)

An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?

f3liC said:
An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?
Click to expand...
Click to collapse
If you are getting that bad of battery life, go to EE4 Debloated . Flash P&J OC Kernel. and Undervolt your phone.

Whay would be causing this kind of battery life though?

f3liC said:
Whay would be causing this kind of battery life though?
Click to expand...
Click to collapse
No telling, depends on how you use your phone and what apps are running.

Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.

f3liC said:
Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.
Click to expand...
Click to collapse
I've had similar battery issues with two different Charge units running each ROM/Kernel (except GB). I also live in a weak coverage area where I average 1 to 2 bars, sometimes dropping to 0 and i'm convinced this has to be it. I had written this idea off initially because I previously had ATT and the same weak coverage with them, but nowhere near the same abnormal battery drain...so I guess there must be a difference between the way CDMA and GSM operate in this respect? I'm in a 3G only area and keep the phone locked to CDMA/Auto also.

danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.

Coming from the fascinate I honestly think the battery life is better. Although I turned lte off since we don't have any coverage for it yet. My mind will probably change when we get it. Running stock ee4 rooted with voodoo kernel. My father is running the same thing and also came from the fascinate, he completely agrees.
Sent from my SCH-I510 using Tapatalk

brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
I had really bad battery life on my phone running the stock rom and gummycharged. With the phone sleeping and only data on, I was losing at least 5% an hour.
I switched to Humble a week ago and my battery life is exceptional. I am ususally looking at 24 hrs with 4g on and longer with it off.
If you do a lot of browsing and keeping your screen on, your battery is going to burn quickly. No matter what ROM you are using. If it's draining a lot of battery in sleep, flash Humble.

danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Dude, this isn't the fix. I'll flash Humble 1.25 right now and prove to you that it doesn't fix battery issues. Yes, it's less of a battery hog than the other available ROMs, but flashing Humble 1.25 will not fix your battery gremlin.
I wish Danalo, imnuts and the other gurus would spend more time figuring out this battery gremlin. Charging your battery to 100% then wiping battery stats through CWR doesn't work either. I've tried it countless times.
OP, here's another thread regarding the battery issues many people are experiencing - http://forum.xda-developers.com/showthread.php?t=1145161
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
Don't give up so soon. The battery life on the Charge can be amazing and I know from experience. My experience also shows that there are funky battery issues that pop up when flashing various crap. Flashing an Odin bundle has not worked for me, at all. Wiping battery stats has not worked.
I was running GummyCharged 1.5 with the PBJT kernel and voodoo enabled and got 17+ hours of medium-hard use EASILY. Since then, I flashed the original GB leak, Gummy, Humble, Stock... I cannot figure out what the heck is going on, my battery life is still crap.

f3liC said:
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
It really sounds like signal issues to me. My Charge handles weak mobile signals better than my Thunderbolt, but any cell phone will really crank up the juice draw looking for a tower if it can't find one. In my north county office, my Thunderbolt will drain 25% per hour if I don't keep it near the window where it can get a better signal.
You need to post a lot more details.
Are you on wifi or mobile data? Are you 3G or 4G area? How strong is your 3G/4G signal?
Have you dug into the battery use screens to see what's up?
Grab Spare Parts from the Market if your ROM doesn't have it and look into it's battery statistics...things like wake-locks will really kill the phone.

brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.

If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App

mbh87 said:
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.
Click to expand...
Click to collapse
And no.... im not pimping downloads. Lol
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Sent from my SCH-I510 using XDA Premium App

danalo1979 said:
If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App
Click to expand...
Click to collapse
Then what would we ***** about?

danalo1979 said:
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Click to expand...
Click to collapse
I've done this countless times to no avail. I'm going to flash Humble 1.25 again in a bit, but it definitely didn't fix the battery issue earlier today when I flashed it. Yes I wiped battery stats. Yes the battery was at 100%.
I'm going to try the ridiculous procedure laid out in this thread - http://forum.xda-developers.com/showthread.php?t=1152088

[Q] battery drains when phone is shut down

my lg g2x drains my battery when turned off
the most previous experience was last night when i had my battery at 39 percent when i turned it off the next morning when i turned it on it was at 19%...
At first i thought it was the faux's DebouchedSloth (the one with the funky readings) so i paid no mind to it. (i just left it on during the night in airplane mode, which actually gave me better battery life) Later, i flashed the trinity kernel, only to find out the same thing happens
what do i do?
im running the latest cm7 kang build from baldwinguy77 with trinity kernel T15max 20122011 if thats any help.
thanks in advance

try a "battery calibration"
let it drain out completely and then let it charge 1 to 2 hours extra after it has reached 100%. worth a shot but i doubt it will help
or try wiping battery status in recovery
also, set up setCPU with profiles

Hmm.. I wonder how the battery drains even though it is off? o_o
Did you try turning it off, than remove the battery and put it back in? And see if it drains.
For me, my battery drains 0% overnight on airplane mode.

maxesxp said:
my lg g2x drains my battery when turned off
the most previous experience was last night when i had my battery at 39 percent when i turned it off the next morning when i turned it on it was at 19%...
At first i thought it was the faux's DebouchedSloth (the one with the funky readings) so i paid no mind to it. (i just left it on during the night in airplane mode, which actually gave me better battery life) Later, i flashed the trinity kernel, only to find out the same thing happens
what do i do?
im running the latest cm7 kang build from baldwinguy77 with trinity kernel T15max 20122011 if thats any help.
thanks in advance
Click to expand...
Click to collapse
I just want to make sure when you say you turned your phone off you mean you shut it down right? I'm just trying to get a answer out of the way because I have seen so many post go a long way only to find out the original post misinterpreted a phrase. If it was in sleep mode a 20% battery drain isn't terrible. I've seen better and worse. If it's draining while it's shut off then I ask are you using the stock battery? It seems to be a big issue and I could easily see it leaking energy while off or giving misread.
Sent from my LG-P999 using xda premium

wyldkard said:
try a "battery calibration"
let it drain out completely and then let it charge 1 to 2 hours extra after it has reached 100%. worth a shot but i doubt it will help
or try wiping battery status in recovery
also, set up setCPU with profiles
Click to expand...
Click to collapse
there was an article on the xda homepage posted not that long ago. it was about how battery calabration doesnt effect battery life, but only the battery graph found under settings. basicaly it said that the batterystats.bin file only has to do with that battery graph, it tells the phone whats been eating the battery. here it the link if you want to read the article:
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
anyways back to the point. nope i calibrated my battery a few days ago, so it didnt help
nitrogen618 said:
Hmm.. I wonder how the battery drains even though it is off? o_o
Did you try turning it off, than remove the battery and put it back in? And see if it drains.
For me, my battery drains 0% overnight on airplane mode.
Click to expand...
Click to collapse
i dont know... and i used to leave it on overnight in airplane mode too with faux's kernel, it drained alot less leaving it on over night then turning it off. but the thing is, leaving you phone on for too long makes it sluggish, so i want to turn it off once in a while to help make it more snappy. I wanted to try that with trinity kernel, but ya thats not really working lool
psychoace said:
I just want to make sure when you say you turned your phone off you mean you shut it down right? I'm just trying to get a answer out of the way because I have seen so many post go a long way only to find out the original post misinterpreted a phrase. If it was in sleep mode a 20% battery drain isn't terrible. I've seen better and worse. If it's draining while it's shut off then I ask are you using the stock battery? It seems to be a big issue and I could easily see it leaking energy while off or giving misread.
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
yupp it was shut down. i turned it off. i dont know why it drains whens its shut down :/

battery drain
for me my phone has none of the problems that most g2x,s do until i use any faux's kernel,s all rom combos all correct faux's kernel combos don't know why wasn't always that way

the minister said:
for me my phone has none of the problems that most g2x,s do until i use any faux's kernel,s all rom combos all correct faux's kernel combos don't know why wasn't always that way
Click to expand...
Click to collapse
I don't know what that has to do with anything and I would suggest trinity

Anyone?
Sent from my LG-P999 using Tapatalk

I would suggest trying a new battery first. I purchased a couple of 3rd party batteries for $20. If it still drains while the phone is OFF, you have some sort of internal hardware problem.

NeKr0MAtiK said:
I would suggest trying a new battery first. I purchased a couple of 3rd party batteries for $20. If it still drains while the phone is OFF, you have some sort of internal hardware problem.
Click to expand...
Click to collapse
okay thanks thats what iv been guessing too

NeKr0MAtiK said:
I would suggest trying a new battery first. I purchased a couple of 3rd party batteries for $20. If it still drains while the phone is OFF, you have some sort of internal hardware problem.
Click to expand...
Click to collapse
okay thanks thats what iv been guessing too

sometimes it's the ROM, i've tried EaglesBlood, PheonixBlood and i get above then norm battery life. I'm on Xboard's OTA and my battery life is sweet

i'm having the same issue as well even when using 2 different batteries and an external charger (for the battery itself).
'normal' drain on the eaglesblood AOSP is about 20% an hour and when I turn off the phone, remove the battery, put it back in, and turn it back on after an hour, the battery drains till it's almost empty!
maxesxp, did the new batteries work? or was it some combination of rom + kernel that did the trick for you?

Weird I just thoughts about looking for this cause I had this happen for the first time. I was at 40% had no charger around so turned the phone off, turned it on the next morning and was at 2% effing weird!
Sent from my LG-P999 using xda premium

My phone does this too. Some days it will drain only a percent or two and others it will drain like 20-30%. From what I can tell the kernel or something is not turning everything off on the phone. Try turning your phone off the next time you do and remove the battery and then when you go to turn it on put the battery back in and see if it drained then. If it did then it is a problem with the battery and if not it is a problem with the phone. If it is the phone there is not much you can do about that, sorry.

Updated to ICS, lost hours of battery life?

I have updated to the official ICS (AT&T) and now I'm no longer getting much battery life. I had some issues with the update, so I wiped my phone and I have little to no apps.
I used to get 10+ hours of battery life, and now I don't even get 8 idle hours (so now it doesn't even last the work day). I checked Battery Usage after it was down to 20% and cell standby took up 90% of battery life.
I used to run JuiceDefender, but I reinstalled it on ICS.
Why have I lost so much battery life; how can I fix this?

Zenoxio said:
I have updated to the official ICS (AT&T) and now I'm no longer getting much battery life. I had some issues with the update, so I wiped my phone and I have little to no apps.
I used to get 10+ hours of battery life, and now I don't even get 8 idle hours (so now it doesn't even last the work day). I checked Battery Usage after it was down to 20% and cell standby took up 90% of battery life.
I used to run JuiceDefender, but I reinstalled it on ICS.
Why have I lost so much battery life; how can I fix this?
Click to expand...
Click to collapse
I have noticed the same thing on the stock ICS. Also noticed very slow charge times using USB (possibly true with A/C charging but I am normally asleep when I charge with A/C).
Is this just caused by the bloat that they put in? I want to flash a custom ROM just for battery life at this point.

Zenoxio said:
I have updated to the official ICS (AT&T) and now I'm no longer getting much battery life. I had some issues with the update, so I wiped my phone and I have little to no apps.
I used to get 10+ hours of battery life, and now I don't even get 8 idle hours (so now it doesn't even last the work day). I checked Battery Usage after it was down to 20% and cell standby took up 90% of battery life.
I used to run JuiceDefender, but I reinstalled it on ICS.
Why have I lost so much battery life; how can I fix this?
Click to expand...
Click to collapse
Im also seeing Cell Standby as a higher % than I used to.

install sky ics rom , this is the best battery . you can easy use more than 15hours . nexus mod 5.04 is also good . and much easier for noob to install . stock sucks .

Try Instigators Kernel. Does wonders for your SR battery....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

onealvideo said:
Try Instigators Kernel. Does wonders for your SR battery....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
Instigator's kernel is for AOSP (CM9/AOKP) so for ICS based official or roms you will need a different one such as mohan's kernel:
http://forum.xda-developers.com/showthread.php?t=1701189
As for battery loss, there are some cases where if the flash wasnt done with 100% battery it could be reading the battery wrong and some people have had success with recalibrating their battery (look up battery calibration on play store). Now it was said that it really doesnt do anything for battery improvements and was just for stats use or whatever but for some people it helped their devices read the right battery stats.

Confused

I have a gs3 I'm running jb aokp build 4. I have a hyperion extended battery in it.. It charged last night for about 8 hours.. This morning I woke up it said 100%. I checked my emails and other accounts. I picked it up 10 min later and it was down to 50%..is this my rom or do u think it the battery.? Thanks
Sent from gs3..

P2o8wer said:
I have a gs3 I'm running jb aokp build 4. I have a hyperion extended battery in it.. It charged last night for about 8 hours.. This morning I woke up it said 100%. I checked my emails and other accounts. I picked it up 10 min later and it was down to 50%..is this my rom or do u think it the battery.? Thanks
Sent from gs3..
Click to expand...
Click to collapse
Has this happened before to you on other builds of AOKP or other ROMs you have tried? Has this happened to you before you got the extended battery? Sometimes Android will randomly incorrectly report battery statistics such as percentage remaining. For example, it might say 10% left but that "10%" will last for another 2 hours.
Sent from my SCH-I535 using xda premium

shimp208 said:
Has this happened before to you on other builds of AOKP or other ROMs you have tried? Has this happened to you before you got the extended battery? Sometimes Android will randomly incorrectly report battery statistics such as percentage remaining. For example, it might say 10% left but that "10%" will last for another 2 hours.
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
No only with the Hyperion battery..
Sent from gs3..

P2o8wer said:
No only with the Hyperion battery..
Sent from gs3..
Click to expand...
Click to collapse
Is the battery new. Has it been conditioned. Drain completely and recharge. Then go from there. Not enough info in 10 minutes to tell what is going on. Install Bettery Battery Stats to see what is running. Gsam Battery Monitor will also give more info on what apps are eating the battery.

prdog1 said:
Is the battery new. Has it been conditioned. Drain completely and recharge. Then go from there. Not enough info in 10 minutes to tell what is going on. Install Bettery Battery Stats to see what is running. Gsam Battery Monitor will also give more info on what apps are eating the battery.
Click to expand...
Click to collapse
After you follow these suggestions if that still doesn't work consider whipping the battery stats file to prevent potential incorrect battery stats usage (You can do this in recovery or by downloading a battery "calibration" app).
Sent from my SCH-I535 using xda premium

I'm still negotiating the hyperion battery issue. The phone does not read the stats correctly with one installed. Battery life is correct but stats are wrong. I think it may have to do with the Jerry rigged nfc that was added to their previously made stockpile.

annoyingduck said:
I'm still negotiating the hyperion battery issue. The phone does not read the stats correctly with one installed. Battery life is correct but stats are wrong. I think it may have to do with the Jerry rigged nfc that was added to their previously made stockpile.
Click to expand...
Click to collapse
HaHaa. They got you too?

Yup, was drawn in by the extra 200ma/hr. Pretty sure the stock battery is better, but cannot get any accurate calibration on the hyperion. Which ultimately tells me that there is a fluctuation in the output of the battery. That can't be good for the system... Kind of like using a construction grade generator to power a pc, it'll work, but is it safe? Stopped using the hyperion batteries, keeping as backup.

I actually picked up a separate charger. I just leave the Hyperion in it for about 12+ hrs. I downloaded battery calibration app and it seems to be doing a lot better. Not like the first time I put it in but lasting the entire day. Thanks for the help guys..
Sent from gs3..

Battery life problems.

Hello, I'm currently running cm 9, however the battery life is just awful
When the phone is on sleep it loses like 1 percent every 5-10 minutes
I am using an extended battery as well, please tell me what to do I was on GB before and the battery was outstanding, I could go on one charge the whole day with heavy usage, now i dont think I can make it through the day with light usage on this
thank you
EDIT: This could be a sleep problem, because when the device is on, the battery is normal

If you flashed the Feb 27 cm9 you should flash proton kernel so you can watch videos. Battery life isn't as good as gb no matter what you do. Also give it some time to settle in. It takes more than a couple hours.

alright thank you... I just flashed the newest version of cm9 a few hours ago, I was flashing a bunch of roms and this one seemed the best... do you know how to force a device into deep sleep cause that seems to be the problem i believe

OK I was just on 20 percent, then i rebooted my phone, and now im on 2 percent... im seriously considering going back to gb

Sounds more like a battery thing? With CM9.? + Proton I'm getting at least a day* with light use. Maybe a bad app or combo of apps? What does BBS say is eating the charge?
* - I say at least a day because I can't not use it for that long.
Sent from my SGH-T959V using xda app-developers app

Stuck on hold said:
Sounds more like a battery thing? With CM9.? + Proton I'm getting at least a day* with light use. Maybe a bad app or combo of apps? What does BBS say is eating the charge?
* - I say at least a day because I can't not use it for that long.
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
just the screen and the android system... very interesting thing though is happening
I'm running a bunch of quadrants to get the battery down to 0, and the battery is all the way down to 1%, however it's been on 1% for like 6 quadrant tests... maybe its just a problem with the indicator, however another indicator also says it's at 1%... very interesting

If you are on CM9, I suggest you flash Hefe or Proton.
I use Hefe because according to the posts being made it puts your phone into deep sleep, which means longer battery life.

tstrat said:
OK I was just on 20 percent, then i rebooted my phone, and now im on 2 percent... im seriously considering going back to gb
Click to expand...
Click to collapse
Definitely a battery problem. This happens to me on one of my batteries but not on another. Time to buy a new one. I haven't tested it fully but it does appear to be just a display issue. Sometimes the bad battery will make the phone display 1% but it will still act as if it had way more than 1% charge left. I haven't done any testing on that regard but that's what it appears to do.

FBis251 said:
Definitely a battery problem. This happens to me on one of my batteries but not on another. Time to buy a new one. I haven't tested it fully but it does appear to be just a display issue. Sometimes the bad battery will make the phone display 1% but it will still act as if it had way more than 1% charge left. I haven't done any testing on that regard but that's what it appears to do.
Click to expand...
Click to collapse
I don't believe it to be a battery problem, because I've been on GB with absolutely no problems and exceptional battery... I just upgraded to ics not long ago, and the battery life instantly screwed up

Have you set the cpu governor to anything silly like performance?
Have you let it charge up fully at least once?
Search xda for "better battery stats" app, use it to see if you're getting deep sleep.

Flash hefe over release 8 and youll have a little better battery. Proton doesnt deep sleep
Sent from my SGH-T959V using Tapatalk 2

Proton DOES deep sleep. That was one of its major features.
Certain scheduler/governor combinations work better on different kernels, though. If the specific one you like most sleeps better on Hefe, great. If the one you like does best on Proton, great. Just be aware that most issues are either physical or user-inflicted...
In this case, your battery is almost certainly dying. The variance in power over a reboot is a definite tell that your battery is probably swollen. If you can spin it on a table, the cells are starting to die. This does not mean you can't keep using it, but it does mean that your battery life will be irregular. It also means that you'll have significantly "higher" battery levels if you reboot the phone with external power connected, but the battery will discharge very quickly if it hasn't actually reached whatever level it believes it should be at.