Database Users

What will happen with a low battery?

Hi!
I was just wondering what happens if you ignore the 10%-warning from the battery. What will happen to the LEO? Will Windows shut down or the device simply run out of juice?

UncleManuel said:
Hi!
I was just wondering what happens if you ignore the 10%-warning from the battery. What will happen to the LEO? Will Windows shut down or the device simply run out of juice?
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Click to collapse
if similar to my old HP Mobile, it might just run out of juice or shutoff at 1 or 2% charge. My HD2 has never been lower than 3% (and didn't switch off) so far so i really cant tell - i simply don't have the time to wait till its totally empty

It will shut itself off and likely go into a reboot cycle until it is dead completely. Once this has happened you will most likely have to charge the battery with a wall charger to get it to take a charge. The USB one will have no effect at all even though it says its charging. This is what has happened to my TP2 and the Leo should not be any different.

It shuts down properly on 1%
Then if you reboot, it just shuts down again.

m0j0j0j0123 said:
It shuts down properly on 1%
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Sounds great. Ok, I´ll test this today...

InRBigness said:
It will shut itself off and likely go into a reboot cycle until it is dead completely. Once this has happened you will most likely have to charge the battery with a wall charger to get it to take a charge. The USB one will have no effect at all even though it says its charging. This is what has happened to my TP2 and the Leo should not be any different.
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This is correct, but, you shouldn't allow this to happen on a regular basis.

at 10 percent you will not be able to use flash of the camera ,all roming options will be closed only main functions will work

m0j0j0j0123 said:
It shuts down properly on 1%
Then if you reboot, it just shuts down again.
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Click to collapse
Exact. No problem unless you leave it for days without recharging.

Allright, here´s the news:
After the 10% marker I played several rounds Solitaire (and I´ve solved none of them btw... ). 5% marker doesn´t change anything, Edge-connection still working...
3%: Some bug I think. I went to the comm manager and put the phone into flight mode. At this moment the device froze completely. After softreset all normal...
1%: Lasted longer than I thought. No more Solitaire but display constant on (just tapped randomly through the menues). After 5 Minutes finally a high buzzing sound and Slide2Shutdown popped up (it´s a feature of EnergyROM 23544). So I shut down the device and plugged in the wall charger...
So in future I´m a bit calmer when the 10% warning pops up...

UncleManuel said:
Allright, here´s the news:
After the 10% marker I played several rounds Solitaire (and I´ve solved none of them btw... ). 5% marker doesn´t change anything, Edge-connection still working...
3%: Some bug I think. I went to the comm manager and put the phone into flight mode. At this moment the device froze completely. After softreset all normal...
1%: Lasted longer than I thought. No more Solitaire but display constant on (just tapped randomly through the menues). After 5 Minutes finally a high buzzing sound and Slide2Shutdown popped up (it´s a feature of EnergyROM 23544). So I shut down the device and plugged in the wall charger...
So in future I´m a bit calmer when the 10% warning pops up...
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i mean all automatic roaming will stop but games and other still works

hoss_n2 said:
i mean all automatic roaming will stop but games and other still works
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What do you mean by "automatic roaming"? Never heard of that.
For me all connections (Wifi, bluetooth, Edge/3G) work until the phone shuts down. There's just the camera flash that stops working at 20%.

kilrah said:
What do you mean by "automatic roaming"? Never heard of that.
For me all connections (Wifi, bluetooth, Edge/3G) work until the phone shuts down. There's just the camera flash that stops working at 20%.
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Click to collapse
there is some options in some programs sya sync while roaming ,this means it syncroize when connecting to internet which uses more battery

Shut Down after battery 20%

Hey,
I have just recently noticed a weird problem on my Arc..
When the battery goes below 20% it shuts down (similar to the way how it would shut down when the battery is out).
Then I need to connect the charger and switch it on, after which the battery will show at 1% and in 5 mins it will change to 21-22%...
so basically below 20% the phone thinks its actually ran out of battery even though it hasnt and hence shuts down..
any ideas about what could be causing this? is it a problem with my phone or the battery?
thanks

superutp said:
Hey,
I have just recently noticed a weird problem on my Arc..
When the battery goes below 20% it shuts down (similar to the way how it would shut down when the battery is out).
Then I need to connect the charger and switch it on, after which the battery will show at 1% and in 5 mins it will change to 21-22%...
so basically below 20% the phone thinks its actually ran out of battery even though it hasnt and hence shuts down..
any ideas about what could be causing this? is it a problem with my phone or the battery?
thanks
Click to expand...
Click to collapse
Have you try to clear the battery stats?
You need to be rooted to do that (I hope everyone knows that )

prathaban said:
Have you try to clear the battery stats?
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And how exactly do you clear battery stats ? dont you need to boot into recovery for that??

My battery has never gone under 20% :-/

Mano1982 said:
My battery has never gone under 20% :-/
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ha ha...very useful!!!...but seriously!!!

My phone comes up saying 9% left and shuts down its stupid think in going to get rid off the phone too much happening with it at the minute and not happy
Sent from my LT15i using XDA Premium App

superutp said:
And how exactly do you clear battery stats ? dont you need to boot into recovery for that??
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Click to collapse
First thing you need to have "root". If you don't haven't rooted, use GingerBreak to root. Search the forum for the thread.
Second install Battery Monitor Widget from Market. Open the application (This is a widget. So you may want to insert the widget in your home screen), press menu and click "Statistics" option and it will prompt you for confirmation. Once done reboot to make sure it's cleared properly (Not necessary, but recommended).
Hope this resolves your issue.

superutp said:
Hey,
I have just recently noticed a weird problem on my Arc..
When the battery goes below 20% it shuts down (similar to the way how it would shut down when the battery is out).
Then I need to connect the charger and switch it on, after which the battery will show at 1% and in 5 mins it will change to 21-22%...
so basically below 20% the phone thinks its actually ran out of battery even though it hasnt and hence shuts down..
any ideas about what could be causing this? is it a problem with my phone or the battery?
thanks
Click to expand...
Click to collapse
I had a similar problem with my arc after charging it for the first time (charged it till 100% with the phone turned on). Then, after I used the phone, when it reached 10%, it just shut down. Then I decided to charge it with the phone turned off and this really helped. After two full charging cycles, the battery is acting normal. Now my arc shuts down at 2% which I think is normal.

Clearing battery stats has worked so far...thanks a lot...
Sent from my Dell Streak using XDA App

superutp said:
Clearing battery stats has worked so far...thanks a lot...
Sent from my Dell Streak using XDA App
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Click to collapse
Great to know that. Thanks for the feedback.

Battery indicator questions

I just put wp7 mango 7740 on last night. I charged my phone overnight, when I woke up it was only at 60%, I rebooted the phone and then it said 100%. I assume its showing the correct percentage now, but if I were to start charging the phone, the percentage would be incorrect unless I reboot it after charging?
should I use this guide to fix the battery status?
http://forum.xda-developers.com/showthread.php?t=933751
if I dont fix it, how am I suppose to know when to charge the phone and adjust my usage so I get through the day?

Was the led indicator green when you wake up,and battery shows only 60%?

mare.djurdjev said:
Was the led indicator green when you wake up,and battery shows only 60%?
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yes. then I rebooted the phone and it showed 100%. I'm getting the percentage from the battery saver in the settings menu.

That happens to me,only i got like 80,85%.I unplug phone and plug it in again on charger,and it gets 100%.Try that,maybe it helps I got 1 day max battery life...

mare.djurdjev said:
That happens to me,only i got like 80,85%.I unplug phone and plug it in again on charger,and it gets 100%.Try that,maybe it helps I got 1 day max battery life...
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does it go to 100% instantly? or do you have to wait like 30 minutes or something?
I let mine run down to 93%, and plugged it in for about 30 minutes, and its at 100% now and green light is on. maybe I don't have any issue with the battery then, maybe the reboot fixed it? I thought I read that all the hd2 with mango read the battery percentage incorrectly though?

It doesnt go to 100% instantly,it takes some time.Yes Mango have some issues with battery,but i dont know exactly which.As i understand,it don't let battery to fully charge,but not sure...Maybe someone will be able to explain that

One I wish for battery fix. Its the biggest wp7 problem

Battery get flat after 8%

Hi there,
I'm using P6800 and started experience abnormal on the better.
The battery warning on 15% charge, it will get flat very fast. And when reached 8%, the phone just initiate a shutdown. Had you face this problem?
1 more thing is that when the phone say full charged, once the plug pull off, it show 99%.
Mind is till virgin and unroot...

ZhenMing said:
Hi there,
I'm using P6800 and started experience abnormal on the better.
The battery warning on 15% charge, it will get flat very fast. And when reached 8%, the phone just initiate a shutdown. Had you face this problem?
1 more thing is that when the phone say full charged, once the plug pull off, it show 99%.
Mind is till virgin and unroot...
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Click to collapse
This is normal, mine is showing the same, but still at 8% upon shut down you can still power it on several times until it reaches 0%.

lsherif said:
This is normal, mine is showing the same, but still at 8% upon shut down you can still power it on several times until it reaches 0%.
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Mine doesn't do that... If i take my tab off power i have 100% for around 5 to 10 minutes, depending on usage. Also it shuts itself off exactly on 0%. Most of the times I see 0% battery for quite a few minutes before it powers down.

what did you do to make it like that? Rooted?

I'm a rooted stock 3G
My battery stays at 100% for a bit unless i am running some heavy duty processes. However I do also experience the battery going flat very quickly after it goes below 10%. I also found that very odd, and I think it would be at 2% when it initiates the shutdown process.
I would like to hear any thoughts as well on why this might be happening

ZhenMing said:
what did you do to make it like that? Rooted?
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Click to collapse
I didn't do anything to it. Browsing the web on wifi, 3g disabled it goes down to 0% before shutting down. When I play angry birds I can see 0% battery quite a few minutes before it shuts down.
Yes, my device is rooted.

ZhenMing said:
Hi there,
I'm using P6800 and started experience abnormal on the better.
The battery warning on 15% charge, it will get flat very fast. And when reached 8%, the phone just initiate a shutdown. Had you face this problem?
1 more thing is that when the phone say full charged, once the plug pull off, it show 99%.
Mind is till virgin and unroot...
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Click to collapse
it's normal dude , sometime after 15% is shutting down very fast

s0r0sh said:
it's normal dude , sometime after 15% is shutting down very fast
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Click to collapse
Shutting down on 15% would be normal for a broken battery.
My htc desire shuts down on 2-5% and I thought about sending it for repair. Unfortunately I didn't but now seeing my 7.7 can go down to 0% I think I should have. It is totally not normal for an intact battery to behave like that.
Could you please post how long your battery is lasting on average?

New Galaxy Tab 7.7 Same Battery Issue
I have the same issue with the battery, i tried root and battery calibration; nothing happens. My tablet is brand new it has less than a month.
The battery life is not bad but like other said: Battery get flat after 8%. And its shutdown but you can turn it on several times until you get a complete discharge.
What can i try to solve the problem?. It looks like a bug or software related issue.
Someone has any idea how to fix it?. Thanks!

Phone stays awake after being taken off charge

Hi there
Topic says it all.. when I take the phone off the charger after it has got to 100%, it will stay awake until I start using the phone.
This might sound insignificant, but I normally charge my phone at night - and if I wake up at say 2am and it's charged I just unplug it. The next time I use the phone around 7am, the battery will be down to 93% or something. This is because the phone remains awake for this 5 hour period.
As soon as I start to actually use the phone, it will begin to sleep as normal. I know phones stay awake while on charge so it's almost like this continues when unplugged. Has anyone else noticed this or can someone test to see if theirs does the same? Basic test is:
1) Charge to 100%
2) Unplug ONLY - don't unlock the phone
3) Leave it idle for 30 mins
4) Check the battery stats
Phone is on stock NPN25.137-33
Thanks
James

I can confirm this.

When you check the battery stats, what thing consumes the battery there?

saqlainrattansi said:
When you check the battery stats, what thing consumes the battery there?
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It will just say "phone idle" which is absolutely useless. I'm not rooted so trying to find a wake lock is more difficult... my guess is it would just classed as a charge wake lock even though the phone is unplugged.

KapilFaujdar said:
I can confirm this.
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Click to collapse
Have you ever made any progress on working out what is causing it? I installed wakelock detector but nothing is jumping out at me.

surrealjam said:
Have you ever made any progress on working out what is causing it? I installed wakelock detector but nothing is jumping out at me.
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I am not rooted so it is impossible for me to find the reason.