What is Offline Charging??? - Optimus One, P500, V Q&A, Help & Troubleshooting

What is offline Charging? I have seen that some ROMs do not support offline charging. If it means that you can not charge your phone when it is switched off,
then how would one charge his phone if its battery is completely drained?

pravin_pran said:
What is offline Charging? I have seen that some ROMs do not support offline charging. If it means that you can not charge your phone when it is switched off,
then how would one charge his phone if its battery is completely drained?
Click to expand...
Click to collapse
Offline charging means that you are able to charge your phone even if it is switched off. Without offline charging enabled, when your phone is off and you charge it, it will turn on again. For example, in the stock rom, when your phone is off and you charge it, you will only see the battery meter and the phone did not turn on
Sent from my LG-P500 using xda premium

Sory i didnt get your answer. If offline charging is not enabled means i cannt charge mobile while its switched off. What to do if my battery is completely drained???
Sent from my LG-P500 using XDA

pravin_pran said:
Sory i didnt get your answer. If offline charging is not enabled means i cannt charge mobile while its switched off. What to do if my battery is completely drained???
Sent from my LG-P500 using XDA
Click to expand...
Click to collapse
No offline charging = Can charge your phone, but phone will be turned on (can receive calls and messages etc)
Offline charging enabled= Can charge your phone, when it is off and cannot receive calls messages)
Either way, you will still be able to charge your battery
Sent from my LG-P500 using xda premium

Isn't it that the phone charges automatically when the phone is switched off??
I really have no idea, itz just my experience I'm telling.correct me if I'm wrong
Sent from my LG-P500 using XDA

IKnowIRock! said:
Isn't it that the phone charges automatically when the phone is switched off??
I really have no idea, itz just my experience I'm telling.correct me if I'm wrong
Sent from my LG-P500 using XDA
Click to expand...
Click to collapse
Yes, but with offline charging, it will cause the phone to boot up again
Sent from my LG-P500 using xda premium

So let me see if I understood correctly. If there is no offline charging when I plug in the phone it will boot up? If I have offline charging then it will remain off and show the battery meter(or nothing at all)?

zolistir said:
So let me see if I understood correctly. If there is no offline charging when I plug in the phone it will boot up? If I have offline charging then it will remain off and show the battery meter(or nothing at all)?
Click to expand...
Click to collapse
Yes! You're right
Sent from my LG-P500 using xda premium

So you confirm I can always charge my battery even if the phone switched off because it was completely drained?
This is the only thing I'm warried and which is keeping me from flashing a new ICS ROM.
It's not a problem if it boots up again. I can always put it in airplane mode when charging during the night... Right?

pravin_pran said:
What is offline Charging? I have seen that some ROMs do not support offline charging. If it means that you can not charge your phone when it is switched off,
then how would one charge his phone if its battery is completely drained?
Click to expand...
Click to collapse
U see when u plug in ur phone to the charger when its battery is zero ur phone will sqitch on with the electricity of charger not battery
Once i tried and then perfectly used my phone with my battery out. !!
So u can understand now!!
First time i had also the same reaction but when this happened with me i got to no what i m telling u
---------- Post added at 04:17 PM ---------- Previous post was at 04:14 PM ----------
Joel Chan said:
Yes! You're right
Sent from my LG-P500 using xda premium
Click to expand...
Click to collapse
Noooo you are wrong ,it does switch on and charges from 0%
i am not lying this has happened to me many times when i come back from school and phone is discharged. i am just sharing my experience

OK so basically all I got from the posts is that you can charge it afterwards no matter what. And I think that is the main issue everyone is worrying about.

You're absolutely right
Sent from my LG-P500 using xda premium

I got it what means offline charging, but..
I had never found the option how to enable or disable offline charging
So, what do to if i need to enable or disable it...?

sushant_1727 said:
I had never found the option how to enable or disable offline charging
So, what do to if i need to enable or disable it...?
Click to expand...
Click to collapse
It cannot be enabled or disabled by user... it'll be enabled by default if the rom supports it, else it'll not...
Sent from my LG-P500 using Tapatalk 2

Even I came here searching google what is offline charging..

geeneeyes said:
Even I came here searching google what is offline charging..
Click to expand...
Click to collapse
XDA is awesome, isn't it?
Sent from my LG-P500 using xda premium

1
What is the kernel support?

Amoh77 said:
What is the kernel support?
Click to expand...
Click to collapse
A kernel connects the application software to the hardware of a computer and is the main component of most computer operating systems. Check wikipedia if you want to learn more about it.
Kernel support now, is whether your kernel supports a feature or not.
For example if you download an app for overclocking you are gonna oc my ass if you don't have a custom kernel which is written to support overclocking.

pravin_pran said:
What is offline Charging? I have seen that some ROMs do not support offline charging. If it means that you can not charge your phone when it is switched off,
then how would one charge his phone if its battery is completely drained?
Click to expand...
Click to collapse
Offline charging is being able to charge the phone when it is powered off. The stock rom on many phones has this feature so if you totally discharge the battery you can plug it in and charge it up. If you have an aftermarket rom that does not happen when you totally discharge the battery you end up in a boot loop. The phone starts up when you plug it in and it attempts to start. It wont fully boot because it runs out of juice then it attempts to start up again and it keeps going in this loop.
With aftermarket rom's there seems to be problems getting a offline charging mode in them to work properly. I know nothing about coding or building roms in general so i cant say what the problem is or why its there.
So with aftermarket roms you have 2 choices really if you drain the battery totally. Take the battery out and put it in some other charger. Plug it in to a charger and hold down the correct keys to enter recovery (lg optimus one home + vol down + power ) and let it sit in that mode for a minute or 2 then reboot the phone.
Would be nice if the aftermarket phones supported offline charging but there are plenty of ways to prevent this problem and even ways out of it without going too crazy so its not much of an issue anyway.

TdiGuy said:
Offline charging is being able to charge the phone when it is powered off. The stock rom on many phones has this feature so if you totally discharge the battery you can plug it in and charge it up. If you have an aftermarket rom that does not happen when you totally discharge the battery you end up in a boot loop. The phone starts up when you plug it in and it attempts to start. It wont fully boot because it runs out of juice then it attempts to start up again and it keeps going in this loop.
With aftermarket rom's there seems to be problems getting a offline charging mode in them to work properly. I know nothing about coding or building roms in general so i cant say what the problem is or why its there.
So with aftermarket roms you have 2 choices really if you drain the battery totally. Take the battery out and put it in some other charger. Plug it in to a charger and hold down the correct keys to enter recovery (lg optimus one home + vol down + power ) and let it sit in that mode for a minute or 2 then reboot the phone.
Would be nice if the aftermarket phones supported offline charging but there are plenty of ways to prevent this problem and even ways out of it without going too crazy so its not much of an issue anyway.
Click to expand...
Click to collapse
I have no idea about this. You make me understand what is about offline charging. Thanks

Related

Battery jumps after reboot while charging

Today it happened again, my battery is around 30%, I let it charge, I decide to turn the phone off and on again. When I turn it on, it suddenly shows it's 68% charged. Again I feel, I have lost the ability to fully load my battery since it now thinks it's full while it should be full an hour of charging later.
Can anyone tell what the hell is going on?
This happened to me before, see: http://forum.xda-developers.com/showthread.php?t=1074093
its happen to me too..
battery around 10% and after reboot while charging its become 40%
weird...
cm7.02+netarchy 1.3.1 cfs
Good to hear there are more people with this issue (don't take it personal).
This is a serious issue, I feel my battery life i becoming shorter and shorter.
Come on, anyone?
Sent from my Nexus S using XDA App
My battery life is **** now due to this bull****
Sent from my Nexus S using XDA App
And it happened again, from 7% to 36 %. A real bug here.. why does nobody take this serious...
same here... hope there is a fix for this
If your phone is rooted, you can try to re-calibrate the battery by:
Charge the phone normally until it says Charged on the lock screen (you can turn on wi-fi in order to get more "fully" charge)
Turn off the phone, it will continue charging. Wait until the battery icon does not animate anymore (press Power button once to see the charging progress)
Turn on the phone, use adb shell or Root Explorer (or File Expert) and navigate to /data/system/
Delete the file named batterystats.bin
Reboot the phone
You can wipe battery stats in recovery, under the advance menu.
Sent from my Nexus S 4G using XDA Premium App
Im aware of that solution, but I don't want to root..
Sent from my Nexus S using XDA App
I've owned 3 Android devices and all 3 exhibited this behavior from Cupcake up to Gingerbread. Just ignore it because soon as you think it's stable it will revert back to doing it again. Just something I've learned to live with at this point.
riichii said:
Im aware of that solution, but I don't want to root..
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
If you're saying this is *really* serious then rooting is no big deal I guess
styckx said:
I've owned 3 Android devices and all 3 exhibited this behavior from Cupcake up to Gingerbread. Just ignore it because soon as you think it's stable it will revert back to doing it again. Just something I've learned to live with at this point.
Click to expand...
Click to collapse
When my battery jumps I just keep using the phone until it dies and then recharge it. Crazy thing is, when it jumped from 12% to like 30%, my phone operated for a few hours while I texted and gamed on it so I don't really care that much. I have also yet to see any signs of deterioration.
riichii said:
Im aware of that solution, but I don't want to root..
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Just one question, that puzzles me; why you don't want to root you phone?! Rooting is no biggie. And given the fact that this is a big prob for you, I suggest that you give it a try.

Battery Life Record

Moderate Use
Doctorz V8
Stock kernel
No voltage changes or clocking aside from what comes with the RoM.
Auto screen brightness.
Main difference is Background Data is off for everything but Market.
Sent from my SGH-I997 using Tapatalk
What do you mean by background data and how do you set that?
Sent from my SGH-I997 using XDA App
Just an observation, but the graph at the top under where it says 1 day 19 hours clearly shows your battery going up 3 times. Which I was just going to pass up but I have a bunch of shots of my battery stats and none of them go up.
[IMG]http://i1111.photobucket.com/albums/h472/BadFishCM/SC20110821-130202.png[/IMG]
So if I'm not mistaken you plugged in a couple times.
I seen that as well but I honestly have no idea why. I can assure you it has not been plugged in. I even have a prior screen shot on another battery run that has the same issue.
Sent from my SGH-I997 using Tapatalk
Thats impossible, theirs no way for a phone to charge itself while discharging. Something is screwed up with your battery calibration.
Sent from my SAMSUNG-SGH-I997 using xda premium
Battery Management
Hi, all.
I want to pass this tip along to anyone who want or need to conserve their battery for what ever reasons.
I have gone usually 3 day+ on one charge.
I'm running on stock rom. Froyo 2.2.1
It is rooted though
I use the phone moderately. Text occasionally.
I downloaded an app called "DataSwitch" by TomatoX.
I use wifi when I'm at home or work.
I have dataswitch activated when I don't need constant background data. ?I turn it on when I need to use it for surfing and such.
In Settings, there is also a toggle for background on/off, although I don't use this much.
With the data off, you can still get phone call and text msg.
I usually turn off data and wifi at bedtime.
On the third day, I'm usually down to 35%.
This may also be useful if you are low and can't get to a charge right away.
It may not apply to everybody, but it works for me..esp with only a 200mb data plan. Battery life is great!
lol look at that cell standby use your phone lol
xKrisx said:
Moderate Use
Doctorz V8
Stock kernel
No voltage changes or clocking aside from what comes with the RoM.
Auto screen brightness.
Main difference is Background Data is off for everything but Market.
Sent from my SGH-I997 using Tapatalk
Click to expand...
Click to collapse
Good one. But next time on, it would be more useful if you post the screenshots showing call duration and display time. With just this one screenshot it could have display on for just 5 mins or 50 mins. Its hard to tell.
Just now noticed, the tiny green bars in the screenshot (circled in red) come up when the phone is charging.
I noticed that (at least for my phone) if you connect it to wall charging it would reset the "time on battery" count but if i connected it via usb to pc it was charging, yeah slowly maybe but the timer never reset when connected via usb as if the phone said "well im charging but it doesnt counts since the guy its transfering data"(lmao yeah my phone is smart) so if you wait for 10% battery ans then go usb mode and charge it and use it and repeat i once got displaying 4 days 10 hours on battery haha.
While on my real stats my phone never last more than 18 hours ;/
Sent from my SAMSUNG-SGH-I997 using XDA App
koriotto said:
I noticed that (at least for my phone) if you connect it to wall charging it would reset the "time on battery" count but if i connected it via usb to pc it was charging, yeah slowly maybe but the timer never reset when connected via usb as if the phone said "well im charging but it doesnt counts since the guy its transfering data"(lmao yeah my phone is smart) so if you wait for 10% battery ans then go usb mode and charge it and use it and repeat i once got displaying 4 days 10 hours on battery haha.
While on my real stats my phone never last more than 18 hours ;/
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
+ 1
I got my phone to say 2 days 15 hours once. As long as I don't charge it 100% the time on my battery continues to go up. I can plug it in while it has 10% left charge it till its 90% unplug it, and the time won't reset.
If anyone mistook my comment, I'm not really interested in claiming any specific record as the op as stated.
I simply meant to share my thoughts on "dataswitch" app and how I had applied it.
I think found it useful to limit data usage and to conserve the battery when I can't get a charge right away.
You'll be surprise how much battery life background data consumes.
The other part tech part of me also recognizes that battery memory exist...it may be best to "widen" your charge range (0% to 100%) when possible.
Well, I figured out what caused that.. My radio in my truck has a USB port that I plug my phone into to listen to my music. Worked great on my Ipod but it wouldn't charge my Ipod. However today when coming home, I plugged my phone in and it doesnt show to be charging, but when I looked at the Battery Use chart, it deffinately showed an increase.
And here I was thinking I was getting impecable battery life lol.
Oh well.. Sorry for the fuss. However, I will keep trying
xKrisx said:
Well, I figured out what caused that.. My radio in my truck has a USB port that I plug my phone into to listen to my music. Worked great on my Ipod but it wouldn't charge my Ipod. However today when coming home, I plugged my phone in and it doesnt show to be charging, but when I looked at the Battery Use chart, it deffinately showed an increase.
And here I was thinking I was getting impecable battery life lol.
Oh well.. Sorry for the fuss. However, I will keep trying
Click to expand...
Click to collapse
There you go. Mystery solved. Case closed.
more like....busted?
alc630 said:
more like....busted?
Click to expand...
Click to collapse
Can't use a hard word. Looks like he is still new and didn't realize his phone was charging. Well, he didn't realize that the green line in pic meant charging. So he gets benefit of doubt.
stock Froyo...
one charge...for real
lol..light use.
qkster said:
stock Froyo...
one charge...for real
lol..light use.
Click to expand...
Click to collapse
Good one. Capture the display time and call time too please next time on.
qkster said:
stock Froyo...
one charge...for real
lol..light use.
Click to expand...
Click to collapse
And I'm a kung fu panda.
diablo009 said:
Good one. Capture the display time and call time too please next time on.
Click to expand...
Click to collapse
How do I do that?
I tried going into settings, about phone, and battery use. That was the img I got.
I'm not sure how to bring up the charge graph, display time and call time as well...
On stock froyo 2.2.1. Baseband I997UCKH1. Kernel 2.6.32.9
I can try it again in a few days if you can tell me how
I'm also using screenshot from the Market.
I'm new at this so tell me step by step pls.
thnks
qkster said:
How do I do that?
I tried going into settings, about phone, and battery use. That was the img I got.
I'm not sure how to bring up the charge graph, display time and call time as well...
On stock froyo 2.2.1. Baseband I997UCKH1. Kernel 2.6.32.9
I can try it again in a few days if you can tell me how
I'm also using screenshot from the Market.
I'm new at this so tell me step by step pls.
thnks
Click to expand...
Click to collapse
Click on individual elements listed to show more details about them.

[Q] Over heating when charging

hey i got a huge problem. when i plug my g2x into charger to charge the phone gets very hot around the camera area and it gets hot when i plug into computer to. Any solutions?
Are you using faux's kernel?
Sent from my LG-P999 using Tapatalk 2
What rom/kernel are you using? Also, are you overclocking?
Sent from my Galaxy Nexus using Tapatalk 2
It`s normal. My phone`s battery also heats up, when I charge it. Maybe it`s because of overclocking.
Press Thanks button, if I helped.
Message provided to you by XDA Premium app installed on my Samsung Galaxy Mini GT-S5570 with DreamW-V6.2 (with CM7) ROM on board.
Bionix Reloaded
theking_13 said:
What rom/kernel are you using? Also, are you overclocking?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Im using bionex reloaded and the kernal that it comes with. i assume its the oem lg battery cause right now im using my phone with extended battery and it works perfectly. ps my oem battery stopped working this morning and no longer turns my phone on
Check mark "stay awake while charging" option in settings. Then just power screen off the screen, it won't get hot.
cricketAC said:
Check mark "stay awake while charging" option in settings. Then just power screen off the screen, it won't get hot.
Click to expand...
Click to collapse
I hear this said every single time and I don't know if it works for some people but it never does for me.
The only solution I've found is to underclock your phone to around 600MHz (whatever your step around there is). This can be easily done with setcpu when you create a charging profile.
My phone used to overheat overnight and I'd wake up to a hot and dead phone. Since doing this I never get a hot phone and almost never wake up to a black screen (meaning my alarms will actually go off).
This is on stock battery.
I have had this problem also what worked for me is turning off wifi. Stock battery
Sent from my LG-P999 using XDA

Skyrocket Battery - Charging Tips

I am receiving a new phone battery in the mail for my i727 since my old one won't last at all.
Do you guys have any tips for me on how to charge my battery so that I keep my charge for the longest time possible without damaging or ruining the battery in any way?
markrayski9 said:
I am receiving a new phone battery in the mail for my i727 since my old one won't last at all.
Do you guys have any tips for me on how to charge my battery so that I keep my charge for the longest time possible without damaging or ruining the battery in any way?
Click to expand...
Click to collapse
Define 'won't last at all'? How much time do you get on the battery now? It rarely has anything to do with charging, unless you use some crappy charger that blasts high amperage current at it. Battery drain is almost always because of either a wakelock preventing deep sleep, or an app running in the background chewing up CPU, and thus battery. For me there were 3 culprits, 1) some chargers (specifically Apple compatible ones) cause a wakelock on 'vm_bus_present'. If you see this, reboot after charging to clear it and get a different charger. 2) Corrupt media data that causes the media scanning process to continually spin CPU. Clear data and cache for the media app. 3) Bluetooth crashes, and the you get a 'bluesleep' wakelock. Reboot until Bluetooth stops crashing, usually for me it only takes one.
CPU Spy and Better Battery Stats are your friends. See the Battery pinned topic, this is covered in much more detail there.
I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
markrayski9 said:
I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
I plug in my phone at night, and I unplug it in the morning. I don't think it gets any more complicated than that.
markrayski9 said:
I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
You plug it in and when it says battery full you unplug the cord.
Sent from my HTC One using Tapatalk 4
Nothing mysterious about charging a phone. Seems like there were some complex charging rituals way back when but they have since been proven BS. That being said, If you normally run your phone down by mid day because you play with it all morning no fancy charging ritual is going to help you.

BEWARE of USB OTG battery drain!

Just noticed that when using USB OTG, a kernel wakelock called msm_otg is being held, preventing the device from going to deep sleep.
What that means in layman's words? While you're using the phone (like maybe playing music off your USB), everything is OK, but then you turn the screen off and go away not noticing that the device is actually NOT asleep and your battery is drained. This is a kernel feature and we have to live with that till somebody is able to change the behavior in future custom kernels...
Till then, don't forget to remove your USB when you're not using the phone.
Well the battery drain is rather...Obvious. You must continuously feed the otg otherwise the attachment will not function, if device enters deep sleep it cannot sustain the connected device.
Sent with Virtue
I have noticed battery drain when it's plugged in as well. With my old LG I just plugged it into my USB hub to let it charge over night with my PC switched off.
My LG charged just fine that way but the Moto G loses 20 to 30% over night that way and does not charge compared to 5 to 10% when it's not plugged in.
Ace42 said:
Well the battery drain is rather...Obvious. You must continuously feed the otg otherwise the attachment will not function, if device enters deep sleep it cannot sustain the connected device.
Sent with Virtue
Click to expand...
Click to collapse
Well I agree this is obvious, that's why I wasn' t presenting it as a bug. Just wanted to tell people to watch out.
Sent from my XT1032 using XDA Premium 4 mobile app
I have an OTG microSD card reader, and it kinda kills my battery lately. I had 50% before making a nandroid backup. Then 45% after reboot, then it's gone to 0% after copying 1,35 GB to the SD card.
Yesterday I had around 31% when I plugged in the OTG just for a 2 mins, then unplugged it. Reboot, and after a few mins my battery was dead 0% again.
I think its because the card reader consume somehow extremely high amount of energy. It gets so damn hot during copy! (i think 45-55°C).
Hi guys, is there anyway to counter this?
With a special Y-cable/adapter perhaps, that works with the Moto G in this way: OTG + charge phone at the same time?? If yes, where do I buy one from?
Or, if this cable/adapter is not available yet, will only using a compatible kernel be able to achieve this?
GaT7 said:
Hi guys, is there anyway to counter this?
With a special Y-cable/adapter perhaps, that works with the Moto G in this way: OTG + charge phone at the same time?? If yes, where do I buy one from?
Or, if this cable/adapter is not available yet, will only using a compatible kernel be able to achieve this?
Click to expand...
Click to collapse
The y-cable exists, and works with every phone that supports OTG and has a custom kernel that supports charge+otg at the same time(as far as i know no one developed a similar kernel for moto g, but i think that nexus 5 has timur's kernel). Anyways you should know that your phone wouldn't charge like when you use a normal charger, it will be slower, like when you connect your phone to your PC. Here's one i found on amazon: http://www.amazon.com/Micro-Cable-Player-Samsung-Galaxy/dp/B00CXAC1ZW. If you somehow make it work with your phone, PLEASE LET US KNOW HOW!

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