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My tf700 sometimes drops to 97% while using it charged, is this normal?
I haven't had this happen, but I wouldn't say it's abnormal yet. Try letting the tablet die, then fully charge it with it off. Then letting it die again. Hopefully it should get your battery back to normal.
Sent from my SPH-D710 using xda app-developers app
nlunlun said:
My tf700 sometimes drops to 97% while using it charged, is this normal?
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Yes. Trying to keep a Li-ion battery at 100% charge all times is bad for the battery.
Yes that's normal. The charger only charges to 100% when sleeping. Every other time it goes to 97% to spare the battery, plus usage eats about 3% anyway.. (Lithium-Ion batteries live longest when kept between 60 and 90%. Fully draining and charging is actually rather bad for it. The only reason you do it once or twice is to recalibrate the battery-level indication.)
It is very difficult to fully drain a mobile devices battery. Notice if you attempt to power the device on it after it "dies", it will notify you the battery is too low, thus the battery is never "empty".
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thanks for answering!
ShadowLea said:
Yes that's normal. The charger only charges to 100% when sleeping. Every other time it goes to 97% to spare the battery, plus usage eats about 3% anyway.. (Lithium-Ion batteries live longest when kept between 60 and 90%. Fully draining and charging is actually rather bad for it. The only reason you do it once or twice is to recalibrate the battery-level indication.)
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It does go to 100% and sometimes drops to 97% though.
nlunlun said:
It does go to 100% and sometimes drops to 97% though.
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Do you have WiFi enabled when it drops?
ShadowLea said:
Do you have WiFi enabled when it drops?
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Yes, it's enabled and on performance mode. Is it just my tablet?
Ive seen that my TF700T does the same thing.
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
nlunlun said:
Yes, it's enabled and on performance mode. Is it just my tablet?
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Ah, there we have it. WiFi drains the power like a vampire. (The folklore kind, not the sparkly ones. ) That's what's causing the drops, with WiFi on the battery lasts about 3-4 hours as opposed to 9. Performance mode spikes the CPU from 1.5ghz to 1.8ghz, and that also drains more power.
There's nothing wrong with your tablet's battery.
Hi everyone I have a problem.
When I charge my battery it charges normally to 70 % after that it takes about 3 to 4 hours to charge till it reaches 100 % but if I reboot my device when it's charged to about 75% the Battery is suddenly fully charged.
I have tried to calibrated it but it didn't help.
I have this problem on every rom. What can the cause of the problem be.
It used to charge normally at first when I bought.
I have my desire s for one year now.
My device is rooted via revolutionary and s-off.
Thanks in advance.
look at this
also post your questions here. [url =http://forum.xda-developers.com/showthread.php?t=1460553] battery calibration is a myth[/url]
Sent from my supercharged :tank:
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badflife said:
Hi everyone I have a problem.
When I charge my battery it charges normally to 70 % after that it takes about 3 to 4 hours to charge till it reaches 100 % but if I reboot my device when it's charged to about 75% the Battery is suddenly fully charged.
I have tried to calibrated it but it didn't help.
I have this problem on every rom. What can the cause of the problem be.
It used to charge normally at first when I bought.
I have my desire s for one year now.
My device is rooted via revolutionary and s-off.
Thanks in advance.
Click to expand...
Click to collapse
Have a look at your battery for any swelling or signs of damage on the battery, it is possible that your battery is shot.
Re: battery...
Could it be that with the reboot,
device wipes its battery stats and looses the info?
(Or is it happening only during flash)
my phone has that same symptoms, but it happens mainly
, when i flash a rom, forgetting fully charge the battery before- after reboot it indicates full charge..
Edit: according to amidabuddha, htc has implemented safety switch in to charging procedure,
, when the load reaches certain level- it slows down
Then begins to indicate ' fully loaded' before
It realy gets to it- that is suposed to lengthen live of the battery,
but three to four hours sounds unusual...
Edit 2. When during charging battery gets to hot, charging stops as well...
Me too, charging from 0-70% needs 1,5-2 hours then 70-95% needs 4 hours, 95-100% just needs couple minutes, Idk why this happens, the battery stat says health...
When in the middle of charging I reboot the device, the level rises up anomaly, ex. The device is charging, and the level is 12 and I reboot, when I get back to homescreen it says 45%..
Also, the led changes from orange to yellow not when the level on fully charged, usually on the 90%.. my device is almost 2 year old
Sent from my HTC Desire S
Tapatalk 2
otterbvrn said:
Me too, charging from 0-70% needs 1,5-2 hours then 70-95% needs 4 hours, 95-100% just needs couple minutes, Idk why this happens, the battery stat says health...
When in the middle of charging I reboot the device, the level rises up anomaly, ex. The device is charging, and the level is 12 and I reboot, when I get back to homescreen it says 45%..
Also, the led changes from orange to yellow not when the level on fully charged, usually on the 90%.. my device is almost 2 year old
Sent from my HTC Desire S
Tapatalk 2
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Me too Sometimes when charging stop @82% but after reboot become full 100%
Sent from my droid hTC Saga
I also had this problem, but when I charge it offline phone charges fast.
mujeeb999 said:
I also had this problem, but when I charge it offline phone charges fast.
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duh, it's because nothing is draining the battery while phone is shut down.
Sent from my supercharged :tank:
hisname said:
duh, it's because nothing is draining the battery while phone is shut down.
Sent from my supercharged :tank:
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Click to collapse
no, there is much difference in time.
From my experience, this behaviour is due to battery age. It started happening after about a year for me. I bought a new battery and the problem went away.
But I never had any real problems as a result of the slow charging of the old battery. If you recharge overnight, then it will have sufficient time to fully charge.
Based on what I now know, I wouldn't replace the battery until it stops holding its charge.
Sent from my HTC Desire S
BillGoss said:
From my experience, this behaviour is due to battery age. It started happening after about a year for me. I bought a new battery and the problem went away.
But I never had any real problems as a result of the slow charging of the old battery. If you recharge overnight, then it will have sufficient time to fully charge.
Based on what I now know, I wouldn't replace the battery until it stops holding its charge.
Sent from my HTC Desire S
Click to expand...
Click to collapse
Have you seen this? http://forum.xda-developers.com/showthread.php?p=38053660
“A computer once beat me at chess, but it was no match for me at kick boxing.” - Emo Philips
Ok, here is the thing when i have 70% battery percentage and i reboot my phone when it boot up the battery drop to 1% sometimes to 14% someone knows how to fix this??
Bro your supposed to put this in the nexus 4 android development. Not in here
And not even in Development, but rather in Q&A, Help & Troubleshooting. Countdown to a moderator doing just that for him.
What if it has nothing to do with a nexus 4 my phone does that sometimes too, basically download battery calibration from market charge your phone to full hit calibrate then let the phone fully die then charge it to full uninterrupted.... It solves it most the time....I have to do it a lot I have 4 batteries and a extended battery so every time I switch I have to recalibrate
Sent from my SGH-I997 using Tapatalk 4 Beta
infamous916 said:
What if it has nothing to do with a nexus 4 my phone does that sometimes too, basically download battery calibration from market charge your phone to full hit calibrate then let the phone fully die then charge it to full uninterrupted.... It solves it most the time....I have to do it a lot I have 4 batteries and a extended battery so every time I switch I have to recalibrate
Sent from my SGH-I997 using Tapatalk 4 Beta
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Thanks dude but i alredy have the battery calibrator and i follow the steps to calibrate the battery. And always happend the same thing ....
alexischino said:
Ok, here is the thing when i have 70% battery percentage and i reboot my phone when it boot up the battery drop to 1% sometimes to 14% someone knows how to fix this??
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Click to collapse
dont reboot
alexischino said:
Ok, here is the thing when i have 70% battery percentage and i reboot my phone when it boot up the battery drop to 1% sometimes to 14% someone knows how to fix this??
Click to expand...
Click to collapse
Have it on the charger when you reboot... Works like a charm.
Moved here from Development Section.....Please read the Forum Rules on posting....Thanks.
Hey.
So yesterday at night I was chatting with my friend and suddenly my cell hanged, at that time my cell's battrey was 40%+. Then i removed battrey and restarted cell and at that time battrey dropped down to 5% :| After 1 more reboot battrey was 31%.
Please some one help! :\
virusshah1997 said:
Hey.
So yesterday at night I was chatting with my friend and suddenly my cell hanged, at that time my cell's battrey was 40%+. Then i removed battrey and restarted cell and at that time battrey dropped down to 5% :| After 1 more reboot battrey was 31%.
Please some one help! :\
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Click to collapse
Discharge your battery completely. Recharge it to 100% without breaks and without turning it on. Dont remove the charge, turn on the phone now. After you see lockscreen, diconnect the charger and you'll be fine
Junior Einstein said:
Discharge your battery completely. Recharge it to 100% without breaks and without turning it on. Dont remove the charge, turn on the phone now. After you see lockscreen, diconnect the charger and you'll be fine
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I don' have charger, I am using USB cable. :\
I tried that but it stucked at 60%, from 30minutes it was at 60%. Now i am flashing a new rom! :\
Use the app battery calibration or wipe battery stats, when your phone is completely charged
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Use zepelinrox's battery calibration script.
Sent from my LG-P500 using xda premium
Left4DeadMW said:
Use zepelinrox's battery calibration script.
Sent from my LG-P500 using xda premium
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Link?
On phone so can't.
Search xda or google for:
-v6 supercharger
-zepelinrox
In v6 supercharger thread, download section, you will find Battery Calibration.pdf file, yes says pdf but it's script file.
Sent from my LG-P690 using xda app-developers app
I have a strange battery issue in my phone. My phone switches off at 5% or sometimes even at 12%. When I restart, It shows 0%. Anyone else also facing similar problem?
Anyone with a solution?
Sent from my GT-I8262 using Tapatalk
Hell yea!! Even i have the same problem... It goes off at 5% and restarts with 0% battery remaining....
Maybe v should both try a battery calibrating app from play store..
It is completely normal to happen. Depending on the surrounding the phone is kept in it switches off automatically to conserve battery drain, so it can happen anytime when phone reaches low battery or critical state. It is the device's method to prevent battery drain as a draining battery can completely destroy the battery and the mobile, so dont worry make sure power saving is on and keep your phone charging
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thanks coreguy, bt this ws not happening b4... my phone used to go off at 1% bt nw as soon as it reaches 5% it goes off and if I restart it the battery % is 0%. This is kinda strange... Does this happend to ur phone too?
p.s: im on stock..
AnsleyC said:
thanks coreguy, bt this ws not happening b4... my phone used to go off at 1% bt nw as soon as it reaches 5% it goes off and if I restart it the battery % is 0%. This is kinda strange... Does this happend to ur phone too?
p.s: im on stock..
Click to expand...
Click to collapse
Yes!
The level at which the phone will get off depends on how you are using and your nearby surroundings, if its too hot or too cold it will go off soon, also if you are using net and gps or any other battery consuming operation it will be off sooner than you think, I am too on stock and sometimes it does happens and sometimes not....
PS when you switch on your phone, it consumes some % of battery just like it happens when you start a car so it will go down a little bit.
Oh! I see!! Thanks for d info....
Thanks mate. That was really informative.
Sent from my GT-I8262 using Tapatalk
i faced this issue after installing snapdragon battery guru..
phone switched off sometime even on 20% battery and restart with 0%
uninstall snapdragon battery guru if you had,.. it works for me..now in use on 1%too..
Hey even I faces this issue since I installed battery guru
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afaquekhaja said:
I have a strange battery issue in my phone. My phone switches off at 5% or sometimes even at 12%. When I restart, It shows 0%. Anyone else also facing similar problem?
Anyone with a solution?
Sent from my GT-I8262 using Tapatalk
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Click to collapse
even i face the same issue, my phone turns off even at 20%. will battery calliration be of any help?
I tried but didn't helped me. But somehow my issue got resolved automatically