Won't Charge - Nexus 9 Q&A, Help & Troubleshooting

Is anyone else having charging issues? I'm having legitimate charging issues to the point where I've only been able to get a full charge once. The full charge may have been prior to root (I'll have to experiment more) but let's face it... This is a nexus. The majority of users are rooters and I haven't seen anyone else with this issue.
To preemptively answer a couple of questions; yes I am charging with the stock cable (and actually also a nexus charge cable from the play store which has slightly better amperage) and yes I am charging via an outlet (ac) as opposed to USB charging.
Also of significance, I am even powering the tablet down as to eliminate the possibility of a rogue process or wake lock consuming more battery than I'm providing. I'll literally plug the tab in at bedtime and wake up to see it at 27% where it was when I plugged it in.
I always confirm that it's charging either via the charge animation while powered off or the battery stats screen while powered on..
Somehow while I was using it, I managed to get it charged to about 57% and powered down and plugged in for the night. It was sadly in the same place in the am. We're talking 8-12 hours of confirmed charging and no gain.
So did I just get a faulty device? I'd blame it on the charger but I've tried two with the same results. I'm considering getting a replacement to see if I have different results. I worry I'll see the same thing.

Sounds like you may have a defective device. You've tried everything I'd recommend. I have the device and don't have your problem. So I don't think you'd have the same problem with a need device. There is a thread here were others have had charging difficulties
http://forum.xda-developers.com/showthread.php?p=56807546
Sent from my Nexus 9 using XDA Free mobile app

Related

Something draining my battery already.

unplugged my phone at 8 read xda forum for 5 mins got to work right now 943 already at 89 percent. Does this seem normal? I been checking better battery stats but don't really understand it. I feel like something is trying to sync. i have fetch off for email and Facebook. anyway to diagnose this on saurom rc4 clean boot.
Sent from my oversized communication device.
Are you overclocked? If you are, which governor are you using? I've posted in the OC kernel thread about an issue where the CPU is running at max frequency the entire time causing a huge battery drain.
I am right now but its showing me deep sleep and 192mhz on demond has a big percentage. Its not running max clocked i know that.
Sent from my oversized communication device.
This is my shots I'm at 78 percent now been on xda for maybe teen more mins. My brightness is one step above min level. Its like 1 percent every 3 mins when screen is on even if I'm idle.
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h3r3tic said:
This is my shots I'm at 78 percent now been on xda for maybe teen more mins. My brightness is one step above min level. Its like 1 percent every 3 mins when screen is on even if I'm idle.
Sent from my oversized communication device.
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Click to collapse
I think I know what the problem is: Your phone is trying to kill itself and save humanity from that terrible font
seems like a bit much but it could be normal.
Once your phone's charge reaches 100% it stops charging to prevent damage to the Lithium-ion battery. I am not sure however when it starts charging again.
Mine charge % dips even when I am using plugged in! Horrible consumption with screen on.
installed only few apps.
Sent from my SAMSUNG-SGH-I717 using XDA
mdamathew said:
Mine charge % dips even when I am using plugged in! Horrible consumption with screen on.
installed only few apps.
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Click to collapse
Are you using the Samsung OEM home charger? It shouldn't be dipping when using that one. Mine will charge AND increase while using it in the car with GPS running (huge battery drainer) and a driving DVR program (DailyRoads Voyager) and the screen on. All with a car charger and cheater plug that shorts Pin 2&3. That's the secret to getting rapid charge to work. The OEM home charger has those pins shorted internally. If you are trying to charge over USB on your computer then again you need that cheater plug and ensure the USB port can support more than 700 mA. If it's a USB 3.0 port then it should handle that current.
No problems for me on the stock or aftermarket chargers with the screen on.
I have the same problem with my brand new I717 GN. Battery level slowly drops when on charge, even if it's the OEM wall adapter. I've tried my Kindle USB cables as well with about the same results. I noticed the charge is a bit stronger from the wall source, but still can't keep up with even simple web browsing via WiFi. I've installed JuiceDefender as well, and it's helped reduce depletion a bit, but not really enough. This phone would never last me a full day of intermittent use without a power source.
I've read several of these threads and there doesn't really seem to be a solid solution to this other than some GN owners saying they have the problem and some don't...
Someone mentioned a crosswired 'Smart Adapter Compatible with Samsung Galaxy S' on Amazon (I'm too new and can't post the link)... I might try that but maybe I'll return for a new one if some people don't have this battery problem, unless it turns out to be a latest firmware problem..?
billzilla2000 said:
I have the same problem with my brand new I717 GN. Battery level slowly drops when on charge, even if it's the OEM wall adapter. I've tried my Kindle USB cables as well with about the same results. I noticed the charge is a bit stronger from the wall source, but still can't keep up with even simple web browsing via WiFi. I've installed JuiceDefender as well, and it's helped reduce depletion a bit, but not really enough. This phone would never last me a full day of intermittent use without a power source.
I've read several of these threads and there doesn't really seem to be a solid solution to this other than some GN owners saying they have the problem and some don't...
Someone mentioned a crosswired 'Smart Adapter Compatible with Samsung Galaxy S' on Amazon (I'm too new and can't post the link)... I might try that but maybe I'll return for a new one if some people don't have this battery problem, unless it turns out to be a latest firmware problem..?
Click to expand...
Click to collapse
he mentioned it and linked it 2 posts above you
ive thanked him, and guess about to buy
just that shipping cost more than the item itself, sheesh
I read an article in a journal recently about how smartphones charge their batteries. The article claimed that once the charge has reached 100%, it will stop providing current to the device until it reaches 90%, after which it will then trickle charge to maintain it at about 90%. All the while the battery meter will still show 100% (at least in the case of iPhones), but after you unplug the phone the first 10% will go rather quickly as it approaches the real charge level.
True for our notes? No idea. But with how Lithium batteries work, I wouldn't be surprised.
I haven't gotten my Note to discharge while plugged in with the OEM AC charger. In the car however, running Waze will suck the life out of it even while charging. (My car charger puts out about 150mA less than the OEM AC charger). Oddly enough, running Navigon on battery alone has less discharge than running Waze while plugged in...Which sucks, because while Waze has crappy directions, it has saved me many hours by routing around traffic. But at least the phone still charges while using Navigon and streaming some Pandora.

[Q] Charging taking too long

Hi as stated my question is NOT to know how many of you experience charging that takes too long, but is there a SOLUTION for it?
I am using a desire s, it used to take 2hours 30min(from 15%-100%) but now a days it takes close to 5 hours to fully charge.
I've read many thread with similar problem but non seem to be able to find the solution.
I doubt it is battery related issue as i got this phone together with my friends and theirs has no issue like this.
I've tried :
1)full wipe
2)different rom(s)
3)different kernel
4)battery stat wipe
5)different charger(both are htc)
ps : I've post this in DesireS Q&A but did not get any solution.
How are you charging your phone: USB to PC it via wall charger? If it's taking longer than usual turn off the phone. I've found that this sped up the charge dramatically! By doing so, you can also see a battery simulation on the screen showing the charging process.
Also, if you're charging vis USB, the requirements are 5 volts from a USB connector. But the problem is amperage. Wall chargers can supply up to 1 amp (some will supply more, but you don't want more for a phone), while many computers will only supply 500 milliamps out of a USB connector. Thus the phone (battery) will charge faster with a higher amperage. If that doesn't do any good, you may have a bunk battery or some kind of hardware issue...
Sent from my MB865 using xda's premium carrier pigeon service
I am using wall charger. It seems consistent to charge slower at around 70% then speed back up at 90%. Are u sure that this is a symptoms of a spoiled battery?
To me(an accountant not a technicians) it seems like the "smart" phone is tell it to charge slower at 70%.
Sent from my Desire S using xda premium(nah dun have the money to buy premium)
Same problem
I have the same problem, first when I bought my SE x10 mini pro. It charged in 1.5 hours but nw it takes about 3 hours. I don't know the reason but I'm trying to find out how to solve this problem.
I'm not entirely certain its a case of bad battery, but it does sound a bit suspicious. If you're feeling up to it, you can try this: (it's worth a shot.)
If, after rooting or more likely that case after flashing a new rom, you often have battery reporting errors and re-calibrating the battery along with some steps I will outline for you below will ensure that your battery is getting a full charge, and the battery reporting accuracy is right on.
1. Take the case off your phone (one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market
3. Plug in your phone to charge while it's on, wait till it gets to a 100%
4. When the charge is 100%, open the BatteryCalibration app and lookup what the charge is in MV while at 100%. Write it down.
My Atrix 2 was showing ~3400MV while at 100%, which is definitely not the maximum capacity.
5. Discharge your phone completely until it shuts off.
A good way of doing this quickly is by turning on wifi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100%
7. When it's at 100%, without unplugging it from the wall charger, take off the battery cover, and take the battery out.
Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%.
Mine showed only 5%.
10. Let it sit there charging for 2-3 hours (or more).
My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours (or more), turn the phone on while holding the volume down button and get into CWM.
Do not disconnect it from the charger still!
12. Wipe battery stats and reboot.
Do not disconnect it from the charger still!
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers -if you were like me, they should be significantly higher than before. After this whole process I had 4351MV at 100%, comparing to 3400MV before calibration.
Do not disconnect it from the charger still!
14. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger.
Go to bed, let your phone sleep too.
The next morning, use your phone as normal throughout the day. Then when it comes time to charge again, see if that does anything for your battery life and/or charging times...
Sent from my MB865 using xda's premium carrier pigeon service
I liked your current charge curve..
bump
ps : i did try out #5 but no success
best way is shut down device when charging
Sent from my GT-I9300 using xda app-developers app
Yes is charges quickly when the phone is off, but what if i am expecting a call or some sort. Could it be a script some where to tell the phone when should it start slow charge or something similar?

Phone doesn't hold a proper charge.

I've been having issues with my phone charging. Took it to Telus and I got a new one. Problem kept occurring so I got the battery replaced as well. Despite basically getting a new phone I'm still having issues. Basically say I'll have 14% battery, I plug it in overnight and come back and it's 34%. So it charges 20% in 7 or 8 hours in the wall charger. I'll then turn it off and pop out the battery, put it back in, turn it on and I'll have 60%. Within a few minutes I'll have 50%. After an hour of use or so it'll beep saying I have 15% battery. I once again pop out the battery and then it'll say I have 40%. I don't even remember the last time I've ever got over an 80% charge or even a 100% charge. I'm lost for ideas at how to fix this.
I'm running ICS S-On, but rooted.
Thanks.
PS The picture I've attached shows what I was talking about. When it was at the bottom red when my phone died saying it had over 20% battery I plugged it in and left it charging for about 14 hours to find it at under 30%.
Sell it and get a better phone
You probably are flashing something wrong or have a rogue app... but there are better phones and its the "black friday" time of year. Just get a better phone.
Sent from my SGH-T999 using Tapatalk 2
Have you tried using a different USB cable and/or adapter? Either or both could be faulty.
Give Better Battery Stats a try, and see if it can point out some apps that are running that you were unaware of.
Free app provided here:
http://forum.xda-developers.com/showthread.php?t=1179809
Alternatively, based on what you're saying, you might need to re-train your battery stats. Since you used a new phone with a possible bad battery, when your phone depleted itself on that bad battery, that might have trained the battery stats improperly. Retrain your battery stats and see if that will help you out.
Instructions on that are provided here:
http://forum.xda-developers.com/showthread.php?t=1517044
—Edit—
I just re-read OP and noticed you advised it NEVER hits 100% charge - Few more things to try:
Firstly, try shutting phone off and charging it OFF overnight, as that might charge it faster.
Secondly, if that fixed the issue, try a different phone charger. Either your USB cord or the USB adaptor (or both) might be bad and not supplying sufficient power.
Thirdly, if that didn’t work, try a different wall outlet – I have run into a few wall outlets that don’t supply sufficient enough power to charge a device.
Finally, if everything I advised fails …… get a new phone. LOL I’d suggest a new battery, but you already did that. If you still have your old one, try the steps I suggested with that battery as well.
Yeah, you could try a different battery or charger. Make the the battery is genuine OEM and new just to be sure, and/or try getting that T-Mobile branded micro-usb charger that outputs 1,000 mAh.

The Mega charging/discharging issues..

I love my Mega. It is by far the best phone Ive ever had. But, the problems I have with the power usage and management on the device are a total nightmare.
1) The discharging nightmare:
The battery lasts NOTHING. Basically I get about 5 hours of use.. maximum.. no matter what I do.. and I have slimmed down to the ROM to having that NOTHING active.. I literally am left with active 6 services and I monitor CPU usage that is always near zero with NO apps hogging resources. From what I monitor on the device's battery usage, it's clearly always about 90% from the display! And yes, I dim the screen as much as I can of course, but usually not below 1/2way.. I hate screens too dim. However even just on standby with the screen off I still lose about 5% to 8% of battery an hour. Worse, even with the device Powered OFF, I still lose about 20% of battery a day. The ONLY way I have found out to control battery drain completely, is to take the battery out. That's it. Anyone else with similar symptoms and a fix or, is just that the stock battery totally sucks??? Also, any other off brand batteries are any better?.. (not the fat ones rated at much higher amps but that have an extra bulge.. that I don’t want)..
2) The charging nightmare:
This to me is the worse problem. It is bad enough how quickly this device issues battery, bit not nearly as bad as trying to charge efficiently again. I now have tried 3 different chargers/brands (and cables) to try fix the charging problem that is, it takes HOURS and HOURS to charge the battery. I am talking 5 to 6 hours to get it charged and if the screen is on and Im using the device it actually charges NOTHING at all and still keeps discharging (albeit much slower of course)... the fact is that the charging process is so pathetically slow that is less than real-time which means, with the device connected to power supply, the battery STILL drains if I try use it. This is absurd. However, mysteriously enough I have found ONE way that charges the phone super fast.. using a SONY External Power Pack (model CP-F1L) rated at 2200mAh. This is seems crazy because the power output of an external power pack should be much lower than the stock (and other Samsung) USB chargers.. but, it's what works.. the ONLY thing that works. And I have noticed that when connected to a USB Power charger, the Mega's Red LED light turn on faded.. however, when connected to the SONY External Power Pack, is bright red. Clearly more juice going in.. or something like that. Again, anyone else with similar symptoms and a fix the charging time, or, any good recommendation on a extra strong USB power adapter/charger that will make this thing at least charge faster?
Thanks in advance for the input and advice:silly:
Sounds like something is not letting your phone sleep or the battery is defective. Try putting CPU spy on it and let it set for a while. Then check to see if it is getting into deep sleep or if it is even stuck at a certain frequency.
There is an app on the playstore called Galaxy charging. Try it to see what rate it is charging. Though with the rate your phone discharges, the charger may only being supplying an amount just over the drain rate which is why it takes so long to charge.
Sent from my SAMSUNG-SM-N900A using XDA Premium 4 mobile app
Yes this is not normal, I get five hours screen time on fifteen hours usage.
Sent from my GT-I9205 using Tapatalk 2
Yep, something wrong there. I'm stock and this thing won't quit :good:
I would flash the stock rom back into your phone and see how the battery works then as this not normal as mentioned by other members as I am still on the stock rom but rooted only and I have great battery life.
That is were to start by flashing the stock rom and if no change then battery or maybe a hardware problem.
Did you have good battery life before you starting flashing with the phone or did this occur after the stock rom was removed and custom rom with stuff removed to gain performance?
Sent from my SGH-I527M using xda app-developers app
Sometime i got 96% bug
Battry is fully charged = 100%
remove charger
Reboot device
Suddenly Battery become = 96%
ps000000 said:
Sometime i got 96% bug
Battry is fully charged = 100%
remove charger
Reboot device
Suddenly Battery become = 96%
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Click to collapse
You could try to remove the battery from the phone for about 5 secs and re-install and see it that helps as sometimes if you take the charger off as soon as it is done charging it might not show 100% at times when booting as I leave mine on for a bit longer and it seems to help..even though charge light is green..I leave it longer on.
If your phone is rooted get a app called battery calibrator from the google store as it is free and install it and just before you shut down the phone to charge wipe the battery stats with this app and then shutdown phone and fully charge and then see how the battery works after the battery stats wipe as that can usually help.
Sent from my SGH-I527M using xda app-developers app
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Mad383Max said:
Sounds like something is not letting your phone sleep or the battery is defective. Try putting CPU spy on it and let it set for a while. Then check to see if it is getting into deep sleep or if it is even stuck at a certain frequency.
There is an app on the playstore called Galaxy charging. Try it to see what rate it is charging. Though with the rate your phone discharges, the charger may only being supplying an amount just over the drain rate which is why it takes so long to charge.
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Click to collapse
Thanks for the tip. Installed the app you recommend, now I understand better. With the stock Samsung USB charger I get 420 readings. With the other 2 chargers I get 500 and 540. However, with the Sony External Power Pack I get 1900!..no wonder it charges super fast with it! My question now is what's up with all the USB chargers I have? I even tried my old Galaxy Tab 7 charger (strongest rated charger I have) and still only feeds 480. This is all so bizarre. So, where to get a super strong charger for the Mega?
(sorry.. by whatever reason my reply got posted 4 times.. so strange. I try delete the first three but cant)..
VeEuzUKY said:
Thanks for the tip. Installed the app you recommend, now I understand better. With the stock Samsung USB charger I get 420 readings. With the other 2 chargers I get 500 and 540. However, with the Sony External Power Pack I get 1900!..no wonder it charges super fast with it! My question now is what's up with all the USB chargers I have? I even tried my old Galaxy Tab 7 charger (strongest rated charger I have) and still only feeds 480. This is all so bizarre. So, where to get a super strong charger for the Mega?
(sorry.. by whatever reason my reply got posted 4 times.. so strange. I try delete the first three but cant)..
Click to expand...
Click to collapse
Usually when this happens there is something wrong with the USB cable not necessarily the charger. Is the sony cable a USB type cable or a hard wired one? If it is USB type try using it with the other chargers and see what your results are.
Sent from my SAMSUNG-SM-N900A using XDA Premium 4 mobile app
Mad383Max said:
Usually when this happens there is something wrong with the USB cable not necessarily the charger. Is the sony cable a USB type cable or a hard wired one? If it is USB type try using it with the other chargers and see what your results are.
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Click to collapse
Yes indeed I notice the Sony Power Pack cable is short and thick. The Samsung cable is long and thin. I get much higher charging power using the thick short cable. Maybe I need go shop for a proper longer/thicker cable.
VeEuzUKY said:
Yes indeed I notice the Sony Power Pack cable is short and thick. The Samsung cable is long and thin. I get much higher charging power using the thick short cable. Maybe I need go shop for a proper longer/thicker cable.
Click to expand...
Click to collapse
I've certainly found the USB cable makes a big difference to the charging speed. I got a couple of 2m cables off Ebay and they're hopelessly slow, but the stock Samsung cable is fast. I just wish it was a bit longer!
I have the same issue
I have the Sprint Mega. Not refurbished and original factory state but I have horrific charge/discharge issues. Right now, my phone just got to 100% charge which I then unplugged the charge cable. Within 5 mins, I went from 100% to 96% and it is losing battery even quicker.
VeEuzUKY: It's been a while but do you still have this phone? Any updates? I should prob invest in a thicker USB cable like you've describe. It has the most charge rate.
I got my mega 6.3 last week. Since then it has said 100% charged... even when charging or dead. So I got a new battery thinking it was the battery but its obviously not and im not sure what it is that could be the problem. Im not sure if its crucial for my phone, if it can be fixed easily and cheaply, or if I need to return my phone to the place I bought it from.

Battery issues.

Ok, I know my phone has battery-releated issues though im trying to figure what is the source and replacing it immediately.
I'll list couple of my chekcs around it:
Having it on charging barely gives the charger the "current heat" its supposed to have with it charging, therefore - resulting in a slow paced charging.
Disconnecting it from the charging port drops the battery down to 10-50% in some times, 60-80% the other times, but there are times that it's going down just to 99% or even keeping it at 100% like it should be.
Ive checked with the charging current app and I've seen it around 200-300, and after disconnecting and reconnecting it couple of times went to around 700-800, probably the reason for the slow charge.
Now my main problem is actually the 2nd one, I dont mind if my charging speed is slow, but I want it to deliver. are those battery drops related to the charging current? my main suspictions are the trickle charge cycle, that if the charger gets 200-300 mah charge, and it calls for a trickle charge, the amounts for it arent enough to keep the phone up even at minimal use, and report a fake 100%.
I havn't tried a different cable yet since I dont own any (same for charger) but if I will get any new cable, is there any rule I should follow to know the quality of it? like slimmer/fatter ones as an example?
And how do I know its not the battery that reached its cycle cap?
Thanks in regard for anyone who contributes to this post.
Ron
Search and read, same question asked a thousand times. Replace charger, lead and battery -done.
I have already searched for it for couple of threads. I have seen that it's a procedural solution but the main thing I'm trying to eliminate from the checklist is a bad charging port and board. Since my cousin already had that problem and he sold his phone it gave me that sort of red light and I haven't come across of a way of diagnosing it "without a cost" for the parts, I'd buy the pays only if there's no possible solution to diagnose it because those parts are quite expensive here unfortunately :/
how about battery calibration?
try that, and maybe your problem because u playing with tweaks or kernel maybe?
also try, install new custom roms. and format your system data
maybe it'll works
poemsme said:
how about battery calibration?
No that is only done by the battery read faqs and guides please .
Click to expand...
Click to collapse
I think its battery issue, cant say for sure, but it also dies up on around 30% now (changed to 4.3)
I own the phone since april this year, and a friend of mine told me she had similar issues and after replacing the battery, it worked out flawlessly.
Also note that my phone is plugged in the charger for a lot of time and I barely plug it off (might be an issue as well)
Okay so I've switched the cable and the app shows flawless 1amp charge.
question regarding it:
if the phone is charging flawlessly like this. Could it eliminate my flickering screen and phone hang issue? (Due to "bad charging quality" if that lesser cable? )

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