Related
[Q] Wifi Tether: Subject to $15 T-Mobile Charge?
Curious about this. Currently I'm connected to my laptop for the past 15 min just fine; no alert came up that said I had to get the $15 fee that T-Mobile charges for the "privilege" of tethering on my current plan. Does that mean that an unlocked phone isn't subject to T-Mobile's tampering?
If so, is this the only value for rooting right now? I don't see any other need for root with this phone except if it fools T-Mobile.
Thanks in advance for your answers.
I know there are numerous threads about battery life, but this one isn't about the life itself really.
I can charge my phone to 100%, but when I unplug it, the battery indicator shows 97% right away. I plug it back in, rinse and repeat, and get the same issue. I even tried charging with the phone off.
Ha anyone had luck with using a full 100%?
allen099 said:
I know there are numerous threads about battery life, but this one isn't about the life itself really.
I can charge my phone to 100%, but when I unplug it, the battery indicator shows 97% right away. I plug it back in, rinse and repeat, and get the same issue. I even tried charging with the phone off.
Ha anyone had luck with using a full 100%?
Click to expand...
Click to collapse
This is normal, search some threads
slowz3r said:
This is normal, search some threads
Click to expand...
Click to collapse
I see that some people don't get to 100% during the actual charge process, but haven't seen my issue yet. I'll keep looking. So many of these threads...thanks.
Just trying to figure out whether it's worth going back for another phone or battery. What would you do?
Id keep it, there was an article posted in one of the threads stating why phones do this...the N1 did a similar thing where after it charged going from 100-96 percent went really quickly
i would equate it when you buy a 16 gig SD card and it shows as 15.6 gigs
Same thing here... pretty sure it's happening to most people.
Read this: http://byrong.com/PowerTesting/
allen099 said:
I know there are numerous threads about battery life, but this one isn't about the life itself really.
I can charge my phone to 100%, but when I unplug it, the battery indicator shows 97% right away. I plug it back in, rinse and repeat, and get the same issue. I even tried charging with the phone off.
Ha anyone had luck with using a full 100%?
Click to expand...
Click to collapse
Mine did this until I calibrated the battery. Charged it to 100%, then drained it all the way. Charged it back up to 100%, and now not only does the battery last longer, but the percentage seems to go down in a more linear fashion.
Read on...
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
Sent from my GT-I9000 using XDA App
brianbrain said:
Mine did this until I calibrated the battery. Charged it to 100%, then drained it all the way. Charged it back up to 100%, and now not only does the battery last longer, but the percentage seems to go down in a more linear fashion.
Click to expand...
Click to collapse
Same here, I've done this two nights in a row, but no change.
Thank you for the links, guys. Pretty insightful actually. I've got it charging right now at 99%. As soon as it hits 100%, I'll take it off and see if it drops instantly. I'm guessing it shouldn't as it JUST hit 100%. But we shall see..
Thanks again!
Same issue here afetr the caliberation and all
I really wouldnt worry about it guys, not like magical unicorns are eating your percentages
Well...I mean, it's not something anybody is "worried" about, but it does suck because I use my phone heavily as I'm in the IT field ... so every percentage counts. After I just unplugged, it went to 99% which my N1 did as well. I'm fine with 99%, but 97% seemed a bit low.
Full charge oddity
When the phone has been switched off and charging the phone shows the fully charged icon on screen when charging appears to be done. Battery Indicator Pro displays only a 95% charge when the phone is switched on. The same happens when the phone is on and being usb charged. When 100% charge is shown and the usb cable is removed the charge is then shown as 95%. This does not happen on my other devices running 2.2. They will show 100% or 99%. A device design or 2.3 bug?
Read this whole post:
http://forum.xda-developers.com/showthread.php?t=871051
The epic 4g has this problem. I think its something with samsung. You have to unplug it, plug it back in, let it charge to full again and rinse repeat until its really at 100%
Then reset your battery stats in cwm
Sent from my SPH-D700 using XDA App
As noted in the stickied FAQ and further discussed in the link provided by nxt (Beat me to it!), this is by design folks.
unremarked said:
Q: I unplugged my phone, and my battery dropped from 100% to 95% immediately, or it won't/takes along time to charge past 99%, what gives?
This is by design. Your phone will slow down and eventually stop pulling charge at or slightly greater than ~95% regardless of what your battery indicator says. This is to extend the overall life of the battery, as constant 100% to 0% charge/discharge cycles will cause it to fail prematurely. If you're interested in really pushing it to 100%, you can use a technique that is called "bump charging" and is better detailed here: http://www.androidpolice.com/2010/12...battery-drain/
Click to expand...
Click to collapse
<- Link has more or less the same info as nxt's.
maybe we need multiple FAQ stickies in this board..
Weird battery reading
My Nexus S was at about 16% when I put it on the charger then I did a quick reboot and it said it was at 52%. I unplugged it, powered off, pulled the battery, then rebooted and it read 28%. Even that is hard to believe after less then 5 minutes of charging. Has this happened to anyone else?
Stock 2.3.1 unrooted
Sent from my Nexus S using XDA App
deyna said:
Has this happened to anyone else?
Click to expand...
Click to collapse
Yes, that has been reported by a number of people. It has happened to me as well when rebooting while charging. Nothing is wrong with your battery though, it just must be a battery stats bug.
Good to know. Thank you for the prompt reply
Sent from my Nexus S using XDA App
Hi, I got my Defy today. I put the mobile for charging 2 hours ago. I'd like to know for what period should I put it for charging as it is the first time for optimum performance of the battery..
I tried searching the forum for a similar question but didn't find any. Please delete this post if it is a an already answered question.
Doesn't matter. May be charge it for some 2 hours more. You can't overcharge the battery - it has protection. For optimum performance, just don't drain the battery to 0%, although it has protection for this too.
Ok, thanks, its already been 2 hours since the battery reached 100% mark. Will stop charging now.
venkatp said:
Hi, I got my Defy today. I put the mobile for charging 2 hours ago. I'd like to know for what period should I put it for charging as it is the first time for optimum performance of the battery..
I tried searching the forum for a similar question but didn't find any. Please delete this post if it is a an already answered question.
Click to expand...
Click to collapse
Although it is generally said that a new battery should be charged for at least 8 hours before use, it may not be necessary. Just fully charge it. However, the capacity may be lower and unstable at first. If charged too quickly, just take it out and reinsert it, and connect the charger, again.
What I normally do is charge it till 100% and disconnect.
Then every month, I'll use up the battery till it shuts itself down, turn phone off, charge it till full.
Any other time, will plug into mobile charger whenever I'm in the office till it's 100% and use it thereon.
Both answeres after mine, are for the old nicd batteries. For liion batteries it is bad to overcharge and discharge to min. Anyway, as i said, there is soft and hard protection for this, so n.p.
Sent from my MB526 using Tapatalk
Under NO CIRCUMSTANCE!!! I MEAN NONE! that you allow ur batt to goto 0% or you will be effed royally by Defy. I and many others faced this. If your battery is like 15% you either charge it instantly by USB or if you have no means then just turn it off and charge in wall charger when you go home. Just don't ever let your defy goto 0% battery because if it does, you like me and many others will be stuck to M logo or white LED ****.
woundedtiger said:
Under NO CIRCUMSTANCE!!! I MEAN NONE! that you allow ur batt to goto 0% or you will be effed royally by Defy. I and many others faced this. If your battery is like 15% you either charge it instantly by USB or if you have no means then just turn it off and charge in wall charger when you go home. Just don't ever let your defy goto 0% battery because if it does, you like me and many others will be stuck to M logo or white LED ****.
Click to expand...
Click to collapse
eh and what exactly happened? i was reading this post last night on my defy and it turned off because of 0% battery lol, and its all fine! :S
sUpErwHoO said:
eh and what exactly happened? i was reading this post last night on my defy and it turned off because of 0% battery lol, and its all fine! :S
Click to expand...
Click to collapse
your lucky bro! don't do that, i was like you all naive and my defy was fine until one day, that happened to me. It didn't turn back on when i tried to recharge it only White LED or M logo.
I didn't even do any flashing or rooting of any kind on my defy then, heck i was on 2.1 eclair. So, be careful and heed my advice or one day you will regret it like I am now.
venkatp said:
Hi, I got my Defy today. I put the mobile for charging 2 hours ago. I'd like to know for what period should I put it for charging as it is the first time for optimum performance of the battery..
I tried searching the forum for a similar question but didn't find any. Please delete this post if it is a an already answered question.
Click to expand...
Click to collapse
Use juice defender for added improvements from first day.. i get 2x boost , to save those extra bits when most nedded .. as for ur question , you need to calibrate your battery in order for it last longer
I advice u to charge 100% + 2hrs , and then discharge it to 10% or lower Without charging it in between !,
Is it possible to ruin my phone's battery due to overcharging? I charge my phone overnight no matter what percentage it is on, I still charge it I know this is bad, but can this ruin the battery? thanks
You should be able to charge as long as you want w no problems as long as you're doing this in a cool or room-temp environment (rather than say leaving it alone in a car charging at high noon w AC off, windows down & no sun shades on the windshield). If you have your phone charging in hi-temp conditions too long\often your battery swells & you get gradual irreparable damage.
HeyyMyNameIs said:
Is it possible to ruin my phone's battery due to overcharging? I charge my phone overnight no matter what percentage it is on, I still charge it I know this is bad, but can this ruin the battery? thanks
Click to expand...
Click to collapse
If u make a correct use of your battery it won't get damaged. Extreme overclock, overvolt, etc can ruin your battery, but if u charge it every day because ur battery is empty it's ok, and u won't have any problem.
luiseteyo said:
If u make a correct use of your battery it won't get damaged. Extreme overclock, overvolt, etc can ruin your battery, but if u charge it every day because ur battery is empty it's ok, and u won't have any problem.
Click to expand...
Click to collapse
what if I charge it eventhough the battery isnt empty?
HeyyMyNameIs said:
what if I charge it eventhough the battery isnt empty?
Click to expand...
Click to collapse
You should be fine. Just look out for power surges!
sspyed said:
You should be fine. Just look out for power surges!
Click to expand...
Click to collapse
thanks man =) thanks to the both of you who replied
Normally, when your phone reaches 100 % full battery level, it stops charging and starts discharging. At around 95 % level, it starts charging again. This all takes a toll on the battery, especially over a long period.
If your phone's battery is at or above 50%, leave it alone or turn it off for the night.
I have an external battery pack for use during the day time, just for situations like this.
Sent from my Nexus 4 using xda premium
Been thinking of asking this for some time. Thanks OP for posting and big thanks to those who replied.
jamesc760 said:
Normally, when your phone reaches 100 % full battery level, it stops charging and starts discharging. At around 95 % level, it starts charging again. This all takes a toll on the battery, especially over a long period.
Click to expand...
Click to collapse
I don't think that's correct. It should switch to a trickle charge, which won't harm the battery, not stop charging completely.
Sent from my Nexus 4
What I spend a lot of time charging the phone through USB? I leave it on charge at work plugged into the computer through USB as there are no free plug sockets. My battery just seems to be getting worse and worse over the last couple of months... Could this be the problem?
Sent from my Nexus 4 using xda app-developers app
HeyyMyNameIs said:
Is it possible to ruin my phone's battery due to overcharging? I charge my phone overnight no matter what percentage it is on, I still charge it I know this is bad, but can this ruin the battery? thanks
Click to expand...
Click to collapse
It'll automatically stop charging itself when it's full, it's impossible to overcharge a modern cell phone battery these days. They are a bit more computerized than the old nicad batteries from back in the day. It's actually healthier to give lithium batteries partial charges at a time instead of draining to zero percent and charging to 100 percent.
phil35 said:
What I spend a lot of time charging the phone through USB? I leave it on charge at work plugged into the computer through USB as there are no free plug sockets. My battery just seems to be getting worse and worse over the last couple of months... Could this be the problem?
Click to expand...
Click to collapse
I doubt it. Could be a faulty battery, but more likely to be apps draining it in the background. Install BetterBatteryStats and see what is using the battery.
Sent from my Nexus 4
i'm using app called full battery & theft alarm. i always charge my phone during sleep, and this app will wake me up to disconnect the charger if the battery is full.
i hope this will prolong the battery life
How do you know your battery is getting worse if it's always charging?
My personal experience is the less you charge it, the better it will perform. However, when you DO charge it, make sure you are less than 30% battery and charge it to 100% before removing it.
For me it's easy, I basically charge my phone at night when I go to bed and that's it. I easily get through an entire day on this phone, though I admit I usually only have about 2-1/2 hours screen on time (I mostly use my tablet when I am at home)
So I thought this was a fluke the first time then I was just able to reproduce the issue again. Once the battery level reaches 20%, the tablet will either shut itself down using the built in shutdown command or will just simply power off as if it doesn't have any power left at all.
I've charged it thoroughly and have even drained the battery down to 1% in the past but this keeps happening now. Any ideas?
Stock ROM/Rooted/TWRP
Tony_YYZ said:
So I thought this was a fluke the first time then I was just able to reproduce the issue again. Once the battery level reaches 20%, the tablet will either shut itself down using the built in shutdown command or will just simply power off as if it doesn't have any power left at all.
I've charged it thoroughly and have even drained the battery down to 1% in the past but this keeps happening now. Any ideas?
Stock ROM/Rooted/TWRP
Click to expand...
Click to collapse
this hasn't happend on my nexus yet but something similar happened to my LG Nitro HD. I basically rooted it and tried some battery calibrating apps on the Play store. In custom recoveries there's also this option to wipe batter status which i think might fix it but i've never tried it.
The battery gauge can be quite inaccurate. From what I have seen, I think Asus cut some corners in calibrating it for the specific battery chemistry - which makes things even worse.
Tony_YYZ said:
will just simply power off as if it doesn't have any power left at all.
Click to expand...
Click to collapse
It's not as if, there is no power left. The battery gauge simply had a wrong estimate of the remaining charge and suddenly the battery voltage collapses (happens very quickly towards the end of the discharge curve) and the N7 shuts down.
Messing with the battery stats doesn't do anything useful.
If you do a full charge / discharge cycle that may help a little with battery gauge accuracy. The battery gauge does some recalibration when doing that.
After a forced shutdown, fully charge and make sure the tablet sits around fully charged for at least 1h (e.g. just plugging it in over night will do fine). Then do a full discharge cycle with the N7 not plugged in at any time (normal usage will do just fine).
Those battery calibration apps don't anything useful, beyond getting you to run a full charge / discharge cycle.
Never happened on my Nexus 7, which have been taken down to 14% more than 10 times in the last 2 month. If what are suggested above don't work then use this tool to restore stock then Warranty return it or return it to store if you still have time,
Wonder if this is what happened to me last night. Was watching a video and it just shut off like the battery was dead. I wasn't paying attention to the battery but was almost positive it wasn't anywhere near zero yet. Never had the low battery pop up on me either. Hopefully it was a fluke...
there are many battery calibration issues/posts in old N7 forums. it also happened to me once in first couple weeks. what helped, I think, was shutting down the device completely with a little bit of battery left and just keep it unplugged for a few hours. Some say to preventively repeat this exercise every now and then..
Sent from my HTC One using Tapatalk
tni.andro said:
The battery gauge can be quite inaccurate. From what I have seen, I think Asus cut some corners in calibrating it for the specific battery chemistry - which makes things even worse.
It's not as if, there is no power left. The battery gauge simply had a wrong estimate of the remaining charge and suddenly the battery voltage collapses (happens very quickly towards the end of the discharge curve) and the N7 shuts down.
Messing with the battery stats doesn't do anything useful.
If you do a full charge / discharge cycle that may help a little with battery gauge accuracy. The battery gauge does some recalibration when doing that.
After a forced shutdown, fully charge and make sure the tablet sits around fully charged for at least 1h (e.g. just plugging it in over night will do fine). Then do a full discharge cycle with the N7 not plugged in at any time (normal usage will do just fine).
Those battery calibration apps don't anything useful, beyond getting you to run a full charge / discharge cycle.
Click to expand...
Click to collapse
NovaSense said:
Never happened on my Nexus 7, which have been taken down to 14% more than 10 times in the last 2 month. If what are suggested above don't work then use this tool to restore stock then Warranty return it or return it to store if you still have time,
Click to expand...
Click to collapse
Kohawk09 said:
Wonder if this is what happened to me last night. Was watching a video and it just shut off like the battery was dead. I wasn't paying attention to the battery but was almost positive it wasn't anywhere near zero yet. Never had the low battery pop up on me either. Hopefully it was a fluke...
Click to expand...
Click to collapse
millicent said:
there are many battery calibration issues/posts in old N7 forums. it also happened to me once in first couple weeks. what helped, I think, was shutting down the device completely with a little bit of battery left and just keep it unplugged for a few hours. Some say to preventively repeat this exercise every now and then..
Sent from my HTC One using Tapatalk
Click to expand...
Click to collapse
I had tried completely discharging it and then leaving it to charge overnight a handful of times without any luck. I ended up just restoring it to factory state and getting a replacement via Google Play Warranty Support. The new unit works just fine. It's an 07/2013 build unit just like the first one if anyone was interested.
by any chance do you use a qi wireless charger?
I have encountered a weird bug where if I charge my nexus 7 with a qi charger to 100% and leave it on the charger itll screw up the percentage/battery stats. with my situation, itll lock my battery % to 100% and wont go down until i go into twrp. If i just go into twrp and not recalibrate the battery stats, the percentage would be off and my nexus wont show the right %, so my nexus would shut off at random % instead of the normal 1% or 0.
millicent said:
there are many battery calibration issues/posts in old N7 forums. it also happened to me once in first couple weeks. what helped, I think, was shutting down the device completely with a little bit of battery left and just keep it unplugged for a few hours. Some say to preventively repeat this exercise every now and then..
Sent from my HTC One using Tapatalk
Click to expand...
Click to collapse
I can confirm this!
Did help on many devices for me with battery calibration erros...
Last one was a Galaxy S2 last weekend - turned of immediately, showed 0% upon start.
Took battery out for 4 hours, put it back in then and voila... 92% and everythings fine again.
junkinmytrunk426 said:
by any chance do you use a qi wireless charger?
I have encountered a weird bug where if I charge my nexus 7 with a qi charger to 100% and leave it on the charger itll screw up the percentage/battery stats. with my situation, itll lock my battery % to 100% and wont go down until i go into twrp. If i just go into twrp and not recalibrate the battery stats, the percentage would be off and my nexus wont show the right %, so my nexus would shut off at random % instead of the normal 1% or 0.
Click to expand...
Click to collapse
No, I do not have a QI charger. I was always using a USB wall charger.
Hi guys, I've got this phone passed down by my mum. It's an old Samsung Note 4 but it's still working fine except the battery readings are totally out.
When I mean totally out, it's like switching off when it hits 30%. Sometimes it keeps going on after it hits 0%. I tried keeping a battery pack on it but it'll just do the same thing.
Just like to know if it helps getting a new battery or is there anything I can do to 'reset' the battery?
Thanks folks!
When a Note 4 shuts off at 30% that usually means that the battery is toast. Get yourself a new Anker battery for $16.99.
https://www.amazon.com/Anker-Replac...01204841&sr=1-1&keywords=anker+battery+note+4
windwaver said:
Hi guys, I've got this phone passed down by my mum. It's an old Samsung Note 4 but it's still working fine except the battery readings are totally out.
When I mean totally out, it's like switching off when it hits 30%. Sometimes it keeps going on after it hits 0%. I tried keeping a battery pack on it but it'll just do the same thing.
Just like to know if it helps getting a new battery or is there anything I can do to 'reset' the battery?
Thanks folks!
Click to expand...
Click to collapse
Like previous stated, battery is most likely going bad. But I figured I give you an alternative to try first. It won't hurt.
Power off your phone and charge it to 100%
Turn it on.
In play store search for "Nema battery". The first result should be it. It's called "Battery Calibrater" and is by Nema.
Install it. And follow directions.
Most all battery apps are crap. But a few people told me this really does calibrate the phone.
Also take note of what amps capacity it says your battery has.
It maybe worth the try.
Thanks buddy, I'll give it a shot.
aaron74 said:
Also take note of what amps capacity it says your battery has.
Click to expand...
Click to collapse
Just fired up the app and it says 4300mV max .
The specs of Note 4 states that the battery is Li-Ion 3220 mAh; Is that 4300mV?
windwaver said:
Just fired up the app and it says 4300mV max .
The specs of Note 4 states that the battery is Li-Ion 3220 mAh; Is that 4300mV?
Click to expand...
Click to collapse
That's the voltage. When it's plugged in, it'll be close to 5v. Unplugged it'll be lower.
That app might not have the reading I'm thinking of. No matter, you can try it.
Just for comparative proposes, I just installed it. And yes mine also shows 4300mv max.
But unplugged it's showing 3995mv, I'm at 75%.
aaron74 said:
That's the voltage. When it's plugged in, it'll be close to 5v. Unplugged it'll be lower.
That app might not have the reading I'm thinking of. No matter, you can try it.
Just for comparative proposes, I just installed it. And yes mine also shows 4300mv max.
But unplugged it's showing 3995mv, I'm at 75%.
Click to expand...
Click to collapse
I see.
I think a different figure shows up when I charge it turned on or off. If I hit 100% charge, it'll show up with less than that when I try charging it turned off.
I'll try the app once I get to 100%. Is that 100% referring to the phone being turned on or off while charging?
windwaver said:
I see.
I think a different figure shows up when I charge it turned on or off. If I hit 100% charge, it'll show up with less than that when I try charging it turned off.
I'll try the app once I get to 100%. Is that 100% referring to the phone being turned on or off while charging?
Click to expand...
Click to collapse
They mean with it on.
I only suggested charging it off. Cause it's suppose to charge fully better that way I guess. You'll be able to tell when it's fully charged that way. Either way probably won't matter for your case. Cause it's either gonna help or nothing much, then you'll know if you should move on and try new battery.
aaron74 said:
They mean with it on.
I only suggested charging it off. Cause it's suppose to charge fully better that way I guess. You'll be able to tell when it's fully charged that way. Either way probably won't matter for your case. Cause it's either gonna help or nothing much, then you'll know if you should move on and try new battery.
Click to expand...
Click to collapse
Yeah, you're right, last ditch effort to see if the battery works.
Another strange behavior is the speed of charging. I use the same charger with the same cable for this test. Funny thing is sometimes the battery takes ages to get to 50% from 0% but on good days, it gets from 0% to 50% in a snap.
Is this behavior of a faulty battery? Or am I dealing with a faulty circuit board? I'm on stock ROM so it's easier to troubleshoot.
windwaver said:
Yeah, you're right, last ditch effort to see if the battery works.
Another strange behavior is the speed of charging. I use the same charger with the same cable for this test. Funny thing is sometimes the battery takes ages to get to 50% from 0% but on good days, it gets from 0% to 50% in a snap.
Is this behavior of a faulty battery? Or am I dealing with a faulty circuit board? I'm on stock ROM so it's easier to troubleshoot.
Click to expand...
Click to collapse
I couldn't say. But it sounds like fast charge is working on and off. Probably bad aging battery.
poit said:
When a Note 4 shuts off at 30% that usually means that the battery is toast. Get yourself a new Anker battery for $16.99.
https://www.amazon.com/Anker-Replac...01204841&sr=1-1&keywords=anker+battery+note+4
Click to expand...
Click to collapse
How is the Anker battery?