Device won't change while being used? - Nexus 7 Q&A, Help & Troubleshooting

Is anyone having issues with the device charging while it's being used?
When I turn the screen off it charges 10 percent in 20 minutes, but while I'm using the device with the charger plugged in it never seems to charge and the battery slowly decreases.
Can anyone replicate this issue?

if you are not using the AC charger, the charge you are getting is not keeping up with the device. If you are using the AC charger, make sure you are using the cable it came with.
Sent from my Nexus 7

Heh, looks like its finally charging now. I was using an extension cable so it was probably adding resistance. Never had a device so picky before. The cable that came with it is too short to do any good. Hopefully there'll be a kernel out soon that allows the device to use the full 2 amps like on siyah kernel on my s3.

Related

[Q] USB plugged in all day

Is it alright to have the SGT plugged into a USB port all day (approx 9hrs) ? I'd like to have it keep its charge (maybe even gain a little) while I'm at work so I can have a decent amount of juice for the trip home and until i go to bed. Or is this a good way of burning out my battery real quick? Thoughts?
Oh and as a side note on USB charging, I was able to get from 15% to 99% in 7hrs with the screen off the whole time.
Is it a slow-charging USB port? Or is it a powered hub? If I'm not mistaken, slow-charging a lithium-ion based battery pack is actually better for its life as opposed to rapid charging.
Its the regular port on the PC not even high speed usb so i guess it isn't powered.hmm guess the charging part is OK..but what about leaving it plugged all day even if the battery is at 100%?
Sent from my GT-P1000 using XDA App
All usb ports are powered by definition. They can supply up to 500ma (half an amp). Dont worry about leaving your tab plugged in, devices are smart enough these days not to overcharge the battery.
Sent from my GT-P1000 using XDA App
TheCoda said:
All usb ports are powered by definition. They can supply up to 500ma (half an amp). Dont worry about leaving your tab plugged in, devices are smart enough these days not to overcharge the battery.
Sent from my GT-P1000 using XDA App
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Coda is right, technically they all have power . If not, how would any device charge? I guess I really meant to say USB ports charge at a higher MA or something for rapid charging (wall-socket USB adapters?).
Also, Coda is right again. Devices these days are fairly smart. I typically leave my HD2 plugged in all the time with no problems.
itll be just fine plugged in!
ive been part-charging mine at random intervals (sometimes for 20 mins at a time a few times a day) and leaving it charging over a day from both powered hub and charger over about five months... though i have had two or three near total discharges
the battery has got better, which is what you would expect from the tech - sammy even provides a nice notification telling you the device is fully chraged
i wonder if they put that in there to account for unexpected battery problems down the line? in any case, ive read that low-powered charging, even unregistered by the battery, will increase the lifetime of the battery and also charge at approximately the same rate... ive seen this with my phones charging over pc usb
Great! Nothing to worry about then. The tab would look really cool on my office desk sporting the same screensaver as my PC ..'the Matrix' scrolling code.
I think it is OK. I bought a 2d adapter, one for the office. Since Sammy is selling docks, it also means that it can be powered all times. On the other hand I remember my Archos which I used to leave it on its dock all times... battery was killed in a short time. When you sell multimedia charging docks it means that you can leave it there, no? Not in the case of Archos.

Charging while in use

If I have the screen on while plugged in, my battery % continues to drop and the device itself feels kind of hot. Could I have a problem or is this normal?
My battery life has also not been so great.
perigee said:
If I have the screen on while plugged in, my battery % continues to drop and the device itself feels kind of hot. Could I have a problem or is this normal?
My battery life has also not been so great.
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Click to collapse
Are you using the OEM charger?
perigee said:
If I have the screen on while plugged in, my battery % continues to drop and the device itself feels kind of hot. Could I have a problem or is this normal?
My battery life has also not been so great.
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Click to collapse
Mine doesn't it keeps going up, though I haven't tried playing games. It does depend on what you are doing with the device, if you are running applications that max out the processor it will possibly drop.
The GSII would drain while plugged in if the screen was on. You would see a noticeable drain while using GPS and Music and driving. The only way to make it work was to turn the screen off on the device, the GSIII has a better charging chip in it, and it isn't limited to 650maH (from what I can tell since it is charging when using GPS)
I noticed it while using a usb car cigarette adapter as well as a usb port on my laptop. the car adapter is a 2 amp charger capable of charging a tablet. I will see how it performs with the oem wall charger.
Sent from my SAMSUNG-SGH-I747 using XDA
Yeah I was charging my phone earlier using a car was adapter with the oem micro usb cable and they phone got very hot.
What do you guys think? Is this a cause for concern? Do I need to buy a manufacturer approved adapter?
Is it safe to leave the phone plugged in overnight? I usually charge the phone when I go to bed, but I've the this might damage some batteries.
hyped89 said:
Is it safe to leave the phone plugged in overnight? I usually charge the phone when I go to bed, but I've the this might damage some batteries.
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I'm curious about this myself....I'm leaning towards not leaving mine plugged all night. I 2 have done this in the past with other phones and can't be certain but maybe this is a rEason I had horrible batt life despite efforts to Better it. So I'm gonna stick with charging/topping off when I can. Gonna start just charging when I wake up while I'm getting ready for work. I did notice that when battery is completely charged a message comes up telling u so and to unplug. So I'm gonna follow directions haha.
Sent from my SAMSUNG-SGH-I747 using XDA
All modern smartphones have chips that control power, and cycle charging appropriately to not abuse the battery. Many phones monitor the temp of the battery and such to ensure a good and safe charge. You can leave it plugged in overnight just fine..
It definitely doesn't like 3rd party adapters. I'm hoping it will at least accept the tab adapter with samsung's cable so that I can charge it at work without buying a dozen chargers, but...
(One charger I used is understandable - turns out its only 300ma. Whoops! But using full 1A chargers wasn't helping either, it went up maybe 1% every 15 mins. The stock charger ran it up fast enough that it was charged from 70% in under an hour.)
I use SetCPU and have a setting to reduce the clock when it exceeds a temperate parameter. You could also set a max clock for when it is plugged into a USB (Computer/Car charger). That could help it stay cooler and charge faster while not plugged into the wall.
I charged from empty to full this morning when plugged into the wall in about 3 hours. I haven't tested on my computer yet.
I went through this when I first got my Evo 4G. I did not realize at the time that the 500mA charger I was using with my Blackberry Storm (horrible device) would not charge my Evo while doing anything power intensive (like using GPS) and I quickly drained it on a car trip.
I went on Amazon and bought a $20 Schosche iPad charger that claimed to provide 2.1A which should be plenty. On that charger the phone would charge while using GPS but very, very slowly.
After some more research I found that some chargers caused the phone to switch into "USB" charging mode and others would switch it to "AC" mode which would draw much more power and charge faster.
This is the charger I ended up with and it works great:
http://www.monoprice.com/products/p...=10826&cs_id=1082602&p_id=6766&seq=1&format=2
My Evo charges just as fast as it does on the OEM wall charger. I don't have my SIII yet (thanks Verizon for being the LAST in the US to ship them out...) so I can't yet say if this holds true for the SIII but I assume it will. At $1.22 it's not much of a gamble.

My Nexus 7 literally takes hours to charge

My Nexus 7 battery takes forever to charge. And this is even when I use my stock cable to the wall charger. I know it takes around 3-4 hours to charge it from dead to full but for some reason mine is only HALFWAY full at the 4 hour mark and I usually have to leave it on the charger the whole night/day for it to be fully charged.
I have no other defects on this product except for this one. And I never dropped it or anything and I'm currently running 4.1.2.
Please help. I know I can't be the only one with this problem.
Definitely use the oem charger (2 Amp compared to 500-850 ma for most) and the supplied USB-3 cable. It will charge faster. After the long initial charge up to 100% mine has been charging pretty well. If I'm down around 10% it can take up to 4 hrs to charge, but the battery is huge compared to most phones. It sounds like something isn't working normally for you. Have you tried turning it off, then charging?
Yes sorry I was unclear in the original post. I'm using everything stock when I charge my Nexus 7. I don't use any other cable. And yes I completely turn it off when I'm charging but yet it still charges horribly slow.
I would test another comparable charger just to make sure it's not the charger or cable itself.
There is a lot of threads that talk about the charger and the possible ones you can & can't use (Nexus 7 is picky). I use a HP Touchpad USB plug and a cable. It does the job well :good:
Saturny said:
There is a lot of threads that talk about the charger and the possible ones you can & can't use (Nexus 7 is picky). I use a HP Touchpad USB plug and a cable. It does the job well :good:
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+1
I use the HP touchpad charger, Playbook charger and KFHD charger. All three of those get the job done fast.
With those three, I don't even need to use the N7 charger lol
Sent from my Nexus 7 using xda app-developers app
Do you keep it on while you're charging it? If so that will definitely make it take longer to charge since it's using power.
Nope.
brando56894 said:
Do you keep it on while you're charging it? If so that will definitely make it take longer to charge since it's using power.
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Click to collapse
I keep mine on, so I can check the % on screen. And long as you don't use it while it's charging, it won't take longer.
Trust me I keep everything that I charge off so that it can charge faster and not be using any power while charging. It seems no one else has gone through this from this thread though. It sucks that I have to get a new charger when the stock charger should be still working fine and perfectly.
As far as i have read the informations on / in box. It said to use the OEM charger only. I didn't really measure time when charging, but it always took maybe 2-3 hours max to charge the device completely.
Try blowing out your micro port with compressed air, had this on my galaxy2
Sent from my Nexus 7 using xda premium
I use a Samsung charger with the usb cord, i for a USA charger.. Mine also uses hours... Good to know IT Will charge netter with others
Thnx
Sent from my Nexus 7 using xda app-developers app

[Q] Pogo Cable Issue

Hello there developers,not sure if I'm posting on the right place but I have a really big problem. My new Pogo Cable arrived and I was so excited to use it,but my happiness didn't lasted fort too long. The problem is that the Tablet while charging with the Pogo cable is either charging slow ,or neither at all. This issue is available for both Lollipop and Kit-Kat,have upgraded an then downgraded with the hope that the issue will be solved. The original Micro -Usb cable works good but with the Pogo Cable in the Battery Monitor Widget it appears "Discharging" and "AC Plugged",and the charging rate is booring slow. Had the idea to measure the Voltage and the current Flow with a multimeter and got the surprise that while the voltage is 5.12 V the amperage is 0.12 A ,while the original charger pumps up to 2 Amps. Could this be the issue? Is there some electrical switch that should open and release all those 2 Amps or is this Cable a Hoax or something that is not fully functional? Thanks in advance,hope that you guys will enlight me somehow!
I've no idea if this is related but be aware that having your pogo plug connected while also having anything connected to the microUSB will stop charging. The charging icon (lightning bolt) will still appear but that I'd a false indicator. This limitation is due to the Android kernel and is present in all versions of Android.
I exclusively use a pogo plug to charge my Nexus 10 and it has always worked on all versions of Android including 5.0.2 which I'm on today. For me pogo plug charging has always been about 25 percent faster then USB charging.
Sent from my Nexus 10 using XDA Premium HD app
My experience is exactly the same as 3DSammy reports.
well my warranty is expired so i Decided to "surgically" dissmantle my Nexus 10 in a heroic attempt to find the cause and I have made a breakthrough (or at least I tought so). I got another Pogo cable ,and this one was good,the voltage was exactly 5 Volts measured and the Amperage that I got was 2.21 Amps measured with a 6 Ohm fuse,all these values where from the original Samsung charger. All things good,but the Tablet is still not charging at all,the same Lightning animations and even after 3~4 hours still no charge at all,and this is Lame in my opinion. So after opening the tablet,I got the idea to short the 3 and 4 pogo pins together,and assumed that this will draw all the power that the battery needs to charge,the idea was working i got 20% more power draw than the usb cable BUT for only let's say Half of hour ,and then the same old story,battery was discharging but the lightning animation was on. This is not so good and my suppose is that the Power Management iC from the motherboard is some how not managing the Pogo charge at all :laugh: so my next idea is to wire the charging Pogo pins directly to the battery and hope for the best. Regards! :good:
moky900 said:
well my warranty is expired so i Decided to "surgically" dissmantle my Nexus 10 in a heroic attempt to find the cause and I have made a breakthrough (or at least I tought so). I got another Pogo cable ,and this one was good,the voltage was exactly 5 Volts measured and the Amperage that I got was 2.21 Amps measured with a 6 Ohm fuse,all these values where from the original Samsung charger. All things good,but the Tablet is still not charging at all,the same Lightning animations and even after 3~4 hours still no charge at all,and this is Lame in my opinion
Click to expand...
Click to collapse
I've got one of the original n10 from first day of issue. My battery is going to hell after being used and charged every day for the past couple years. It's been on/run everyday since Dec. 2012. I have always had a problem charging while using it. My display is always set at about 1/3 bright. When my battery drops to critical, I plug in the pogo and usually put it in sleep mode to charge. It will quick charge that way.
If I still need to use it at critical battery level, plugged into the pogo plug, it maintains power and possibly gives it a very slow increase in charge. Almost none noticeable, but will maintain power level (unless tons of graphic, camera or movies along with full bright screen).
I've just taken it for granted that this is how it works. Pogo plug will maintain battery while using and will switch to quick charge once put into sleep mode or powered off. It's always acted that way, so I have never known anything different.
Ed
metaled222 said:
I've got one of the original n10 from first day of issue. My battery is going to hell after being used and charged every day for the past couple years. It's been on/run everyday since Dec. 2012. I have always had a problem charging while using it. My display is always set at about 1/3 bright. When my battery drops to critical, I plug in the pogo and usually put it in sleep mode to charge. It will quick charge that way.
If I still need to use it at critical battery level, plugged into the pogo plug, it maintains power and possibly gives it a very slow increase in charge. Almost none noticeable, but will maintain power level (unless tons of graphic, camera or movies along with full bright screen).
I've just taken it for granted that this is how it works. Pogo plug will maintain battery while using and will switch to quick charge once put into sleep mode or powered off. It's always acted that way, so I have never known anything different.
Ed
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Click to collapse
Well I'm sure about what did you said,but in my opinion this is a marketing bulls$h*t. Why would I use that Pogo cable if it's role is to charge only on sleep mode and powered off?I ordered because I thought that like the instructions of the pogo says:" it will charge the battery even when you are using it for movies and browsing,being more handy ,because you have the micro USB port free." I play games ,I surf the web,so my tablet is hooked up to a USB hub so I have connected a mouse,a keyboard and a game controller,so my USB port is full,and I hoped the pogo will help. Charging only on sleep is equal to zero for me,I need live charging,in the same time as the tablet runs games and other stuff. In my opinion this "glitch" should have been told on the pogo site,so I could full understand this cable and it's role. Shame on Samsung,30$ .for nothing! Thanks for the help!

Charging Stops Overnight

Like a lot of people I charge my phone over night, but with the 6p I wake up in the morning (after a good 8hrs) and its sat on 96-98%. Even though it still says charging.
It's no big deal but when I unplug and plug back in it charges to 100% relatively quickly.
Anyone else see this? I'm using an older charger (from my nexus 4) so may try the proper one tonight.
Sent from my Nexus 6P using XDA Free mobile app
Isn't this normal behaviour? Most phones stop topping up the battery even when connected on the charger to avoid wearing off the battery.
I used to have my HTC m7 connected overnight to the charger and even though it showed 100℅ in the morning, as soon as I disconnected it from the main the indictor would drop rapidly to ~95℅ which indicated the above behaviour.
Sent from my Nexus 6P using Tapatalk
I've not seen it before. My galaxy s6 always came off charge at 100% as did my nexus4 and the 5x I owned briefly.
If this is normal and happens to other 6p owners I'm happy with that
Sent from my Nexus 6P using XDA Free mobile app
Mine is doing this as well. It seems to charge to 100%, stop charging, and not run off power at all. Since I use sleep tracking, in my case, I usually wake up to about a 90% charge. This is the first phone I have seen do this -- they usually charge to 100% and keep running off the charger. I haven't tried the stock 3A charger yet, as there really is no need for a quick charge overnight.
pahardie said:
I've not seen it before. My galaxy s6 always came off charge at 100% as did my nexus4 and the 5x I owned briefly.
If this is normal and happens to other 6p owners I'm happy with that
Sent from my Nexus 6P using XDA Free mobile app
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Click to collapse
How in the world are you using an old charger on a Type-C Connection? (or are you using a converter?... if so, that may be the reason)
Just using a USB A to USB C cable into the power brick from my old phone.
Pretty straightforward really.
I'll try with the proper charger at some point. It's not a big deal.
Mine hasn't done that. Got it Thursday and it's had a full charge each morning. Using the supplied charger
normal behavior. it does that to protect the battery.
Every phone I've ever had charges to 100% and stays running off the charger to stay at 100%. Last night (my first night with the phone) I plugged it in with 31% and woke up with it at 81%. It clearly charged....and then stopped charging only to run off the battery while still plugged in. Not normal for any other device I've owned. I would prefer it to stay at 100% until I'm ready to unplug it. Maybe using the supplied charger will do this. I used a USB A to C cable plugged into USB wall port. I have replaced several outlets in my house to ones with built in 2.1A USB chargers.
318sugarhill said:
Every phone I've ever had charges to 100% and stays running off the charger to stay at 100%. Last night (my first night with the phone) I plugged it in with 31% and woke up with it at 81%. It clearly charged....and then stopped charging only to run off the battery while still plugged in. Not normal for any other device I've owned. I would prefer it to stay at 100% until I'm ready to unplug it. Maybe using the supplied charger will do this. I used a USB A to C cable plugged into USB wall port. I have replaced several outlets in my house to ones with built in 2.1A USB chargers.
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I'm not understanding why anyone would not use the supplied charger and cable.
bobby janow said:
I'm not understanding why anyone would not use the supplied charger and cable.
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Click to collapse
Why should it matter? wattage is wattage. Does the phone charge differently with the stock charger? Do you always carry it in your back pocket? Do you ever use a car charger?
318sugarhill said:
Why should it matter? wattage is wattage. Does the phone charge differently with the stock charger? Do you always carry it in your back pocket? Do you ever use a car charger?
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Carry the phone in my back pocket? No, I don't but what does that have to do with the price of tea in China? I do not use a car charger either. As for wattage, I believe that the type C 3.1 chargers output at 100W and possibly 200W whereas the one you are using might deliver 18W. There might also be damage due to wiring with some of the 2.0 - 3.1 adapters but I'm still researching that.
So why wouldn't you use the type C charger? Besides, you can't plug it in backwards or upside down. And once you get a computer that supports type C the data transfer rates will be astonishing from what I've read.
bobby janow said:
Carry the phone in my back pocket? No, I don't but what does that have to do with the price of tea in China? I do not use a car charger either. As for wattage, I believe that the type C 3.1 chargers output at 100W and possibly 200W whereas the one you are using might deliver 18W. There might also be damage due to wiring with some of the 2.0 - 3.1 adapters but I'm still researching that.
So why wouldn't you use the type C charger? Besides, you can't plug it in backwards or upside down. And once you get a computer that supports type C the data transfer rates will be astonishing from what I've read.
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Do you carry STOCK charger in your back pocket.
Point is, sometimes I need to charge it at work, or elsewhere as I may use it heavily. That's why I would use another charger. Point is, why does it stop charging on the charger and not draw from the charger once it's full. Like I said, mine charged fully then stopped using the charger drawing from the battery. Kind of pointless if I leave it on the charger to be full when I leave in the morning if it's not going to be full.
I'm glad its not just me who finds this a bit odd.
I used the same charger with my nexus 5x, galaxy s6 and nexus 4 and always found the phone at 100% in the morning.
The 6p obviously works differently.
318sugarhill said:
Do you carry STOCK charger in your back pocket.
Point is, sometimes I need to charge it at work, or elsewhere as I may use it heavily. That's why I would use another charger. Point is, why does it stop charging on the charger and not draw from the charger once it's full. Like I said, mine charged fully then stopped using the charger drawing from the battery. Kind of pointless if I leave it on the charger to be full when I leave in the morning if it's not going to be full.
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I see what you mean. For a quick boost charge I can see you carrying a cord in your back pocket. I'm really trying to get a full 14-18 hours with this device no matter my usage. If I can't I really cannot justify this expense. I have 4 phones on my plan, a Samsung 5S, two iPhones 6s, and up until yesterday my N5. All other 3 got a full day plus even watching video and listening to music constantly. So no, I'm not carrying a charger, a cord or buying a car charger.
As for your problem of charging, have you tried the stock charger to see if you can get to 100%. I have already twice with no problem. Last night I wanted to unplug it once charged to see how much it drained overnight but I fell asleep at 93% and unplugged a few hours later. 6 hours off the charger it was still at 99% so I'm assuming it charged to 100 or close to it. Perhaps you can do a full charge overnight and then a spot charge during the day if you need. I'm thinking you might not.
I am also having this problem. I am using the included c to a cable to charge with. The phone stops charging around 95% and doesn't charge ever again until I unplug it and plug it back in.
These are the problems with this:
1. Cases where i do not have the included charger with me.
2. On long trips where my phone is plugged in all the time to prevent it from dying. (Streaming music, navigating, etc)
3. Sleep tracking
I'm using the Anker 5 port charging hub at 2A each port.
once your battery gets fully charged 100% - the charging stops to prevent your battery from overcharging. since your battery is not charging - your battery will drop down. once it gets down to 95% - charging resumes until it gets back to 100%.
in other words - that is normal.
Gekko2 said:
once your battery gets fully charged 100% - the charging stops to prevent your battery from overcharging. since your battery is not charging - your battery will drop down. once it gets down to 95% - charging resumes until it gets back to 100%.
in other words - that is normal.
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Click to collapse
Every other phone I have ever had did not do this and instead trickle charged at 100% and ran everything off of the charging port, never had a phone that constantly drops to 95% then back to 100%, that would be a roller coaster during car trips. The problem I'm experiencing is not that situation either; the phone will stop charging and never get charged again, so it could drop to 80% while connected to the charger. It knows it's connected to a charger, but doesn't draw current from it. Doesn't show the charging icon or charging AC, but the lock screen shows the percentage of battery.
I do have possibly some positive observations however. Last night I decided to try it without my USB 3.0 extension cable, and only the measly 1 foot c to a cable Google provided. Without the extension cable my phone charged as it should, went to 100% and stayed there with the charging symbol still on the battery icon. Upon removal of the charger, the battery stats showed only 3 seconds of use, whereas before it would just show everything since last 100% (which was sometimes 50 hours even though i charge my phone every night). I'd have to keep observing this to see if it was indeed the extension cable.
That's interesting wrt the extension cable. I have a extension as well. Will get rid and see what happens. I keep meaning to try stock charger and stock cable but can't be bothered.
It's not normal behaviour or else it'd happen on other phones. I've had nexus 4 iPhone 4s htc one m8 Samsung galaxy s6 iPhone 5s and nexus 5x all using the same charger / extension all have charged to 100% and stayed there.. Except the 6p.
It's not a massive deal, typically it'll loose 1 or 2 percent over night once it's been to 100.
Just an update, it was the extension cable. Phone charges to 100 at stays there until unplugged as is expected behavior. Just don't use USB extension cables to charge devices

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