Database Users

[Q] Battery status always showing 100%

OHi everyone,
I bought my nexus 7 on saturday, it was charge at 40%, I fully charged it and ever since my battery status is always at 100% so i waited until sunday afternoon and i turned off itself, when i plugged it in it showed again 100%, any idea of what's happening ?
I rooted it and tried to wipe battery stats but it didn't work, my nexus 7 is a C9O for what it worth.

Up, can it be a material problem knowing that while it first discharged the battery level seemed perfectly accurate?
Envoyé depuis mon Nexus 7 avec Tapatalk

Slow charging

For some reason my nexus is charging very slowly today. It has gone from 24% to 52% in a span of 3 hours, usually is fully charged by that time. Stock 4.2.1. Any ideas why?
Στάλθηκε από το Nexus 7 μου χρησιμοποιώντας Tapatalk 2

Did you use the charger that came with your N7?
Sent from my Nexus 7 using xda app-developers app

Experienced some horrible charging last night, went from 5% to 24% in a span of 5 hours charging with the stock USB.

Απ: Slow charging
Yeap im using the nexus charger.
Στάλθηκε από το Nexus 7 μου χρησιμοποιώντας Tapatalk 2

I have experience extremely slow charging with anything other than the stock charger with the stock cable. Not sure what that's about, but I hope I don't lose either of them...

The reason why other (phone) chargers won't work/ charge the device slower is because the Nexus charger (the big block) outputs 2A, many phone chargers only give 1A or 0,5A. (You can charge you phones with the N7 charger twice as fast, not recommended though.)
Sent from my Nexus 7 using xda app-developers app

I read somewhere that Jean Baptiste Queru commented on this on Google+, however I cant find this post.
Have a read here http://www.gottabemobile.com/2012/11/19/android-4-2-jelly-bean-bugs-plaguing-nexus-users/
Down near the end of the comments section, old timer Tony has posted an interesting theory. Whether its possible or not I don't know but its an interesting theory in so far as this issue doesn't affect everybody.

Just wondering what standard the cable and the charger is.
What can you use that is not the stock charger, And get the dame charging results.
DEVICES:
NEXUS 7 32GB STOCK
(NO ROOT)
T-MOBIL LG G2X (LG-P999)
STOCK (ROOTED)
Sent from my LG-P999 using xda premium

4.2.1 30 minutes charging the Nexus 7 and 4% charge increase
Sent from my Nexus 7 using xda premium

Mine too... slow as hell on 4.2.1

I searched for slow charging today, as I have found some nights that my Nexus 7, plugged in to the original Nexus 7 charger and using the Nexus 7 usb lead, and displaying Charging (AC), is not full by morning.
Other nights, it is full.
If it has not gone to 100%, then sometimes when I unplug the micro usb and plug it back in again, it charges up the final bit quite quickly.
Is there any way to measure from within the stock Nexus what charging rate it is getting?

Mine charges really quick. Turn off the WiFi while on charge. That should do the trick..(did for me)
Sent from my Nexus 7 using xda premium

Mine takes 5-6 hours to fully charge. I found, the charge increased when the device was off (i.e. less draw, more power for charging).

Download 'CPU monitor' from the play store and see if there is an app hogging your processor. This happened to me the other day. My n7 usually charges from empty in 3 hours, but it was charging much slower.
I felt my nexus was just getting slightly warm on the back, so fired up CPU monitor, and found an app that was keeping the CPU running. So I killed the process and everything went back to normal.
Sent from my Nexus 7 using Tapatalk 2

There's a thread on a battery pack over in the accessories subforum. It was a great deal so I got one and have been posting and following it. Related to this thread, why?
I found that the uber smart logic that was added as part of the 4.2 Android release can use a charger designed to the Apple power standard instead of the USB power standard. This means the Nexus tries to sense whether the data lines are connected for data or not. This in turn means that the Nexus can get confused by noise on the data lines and decide to slow charge at the 500 mah max rate because it thinks there's a computer on the other end of the cord instead of a charger. Simply disconnecting and reconnecting or changing cables should make the problem go away.
Sent from my Nexus 7 using Tapatalk 2

Install current widget which tells you the charge.
Sent via TCP/IP

give this a try?
My wife's N7 (I keep it within a week or two of CM nightlies) wouldn't charge at all - It would work, most of the time, if plugged in, but batt would never rise above zero, even if android was not booted up, screen was off, overnight, airplane mode, anything. Flashed different builds, no change.
Sometimes when turning it on, you couldn't get anything but the fuzz, like a bad GPU. Tried ADB, tried power+down trick (toggle to power off) but the bootloader screen never responded to any input.
What fixed it for me was removing the back case, unplugging the battery, and plugging it back in. Suddenly the battery noticed it had 46% capacity. Few days since, so far so good. Not hard to take apart n7's, might be worth a shot if you're having weird batt issues.
The batt cabled on this N7 felt looser than the plug on other n7's I've taken apart. If this issue reoccurs I'm going to stock some tape over the connector.

I tried current widget but it shows "no data" for current.
Battery diviner has graphs which show rate of charging. Last night it recharged from 82 to 100 in 3 hours. This looks interesting.
Sent from my Nexus 7 using Tapatalk HD

Charging a 4325mAh battery isn´t exactly 5 minutes and its done. mine takes up to 3 to 4 hours sometimes..

Streykatorato said:
Charging a 4325mAh battery isn´t exactly 5 minutes and its done. mine takes up to 3 to 4 hours sometimes..
Click to expand...
Click to collapse
Well, my Nexus 7 takes up to 12h to charge completly (currently 6%/h). Using the std. AC, but not the original cable... I have doubts that it should take that long, even if I do not use the original cable.
Anyone a clue or similar experiences?

[Q] Charging precentage problem Note 3 LTE

first i have note 3 LTE N9005
My battery will show 100% after charging. When I take it off the charger, the battery level drops to 99% after 2 or 3 minutes
is it a problem in the rom or the charger or the usb cable or this is the normal ???
thnx

cocoooo said:
first i have note 3 LTE N9005
My battery will show 100% after charging. When I take it off the charger, the battery level drops to 99% after 2 or 3 minutes
is it a problem in the rom or the charger or the usb cable or this is the normal ???
thnx
Click to expand...
Click to collapse
battery takes a little more time after 100% make sure to charge it till its full.
But if it gets to 99% when your phone is in use then its normal.
Sent from Galaxy Note 3 SM-N9005

cocoooo said:
first i have note 3 LTE N9005
My battery will show 100% after charging. When I take it off the charger, the battery level drops to 99% after 2 or 3 minutes
is it a problem in the rom or the charger or the usb cable or this is the normal ???
thnx
Click to expand...
Click to collapse
Try to recharge it till 100% unplug the usb charger then plug it again do it 3 to 5 times you should be fine after that.
Sent from my SM-N9005 using Tapatalk

It seems to be normal. If have 2 x Note 3 a have same. I talked to Samsung and get a new Battery, but the same.
This will work :
Try to recharge it till 100% unplug the usb charger then plug it again do it 3 to 5 times you should be fine
Gesendet von meinem SM-N9005 mit Tapatalk

Amar.B said:
Try to recharge it till 100% unplug the usb charger then plug it again do it 3 to 5 times you should be fine after that.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
plug it again when the presentage come 99 or after i unplugged it directly ??
thnx 4 ur reply

thahim said:
battery takes a little more time after 100% make sure to charge it till its full.
But if it gets to 99% when your phone is in use then its normal.
Sent from Galaxy Note 3 SM-N9005
Click to expand...
Click to collapse
i usually leave it in charge for 5 or 10 minutes after recharging & the prob. still

buell47 said:
It seems to be normal. If have 2 x Note 3 a have same. I talked to Samsung and get a new Battery, but the same.
This will work :
Try to recharge it till 100% unplug the usb charger then plug it again do it 3 to 5 times you should be fine
Gesendet von meinem SM-N9005 mit Tapatalk
Click to expand...
Click to collapse
plug it again when the presentage come 99 or after i unplugged it directly ??
thnx 4 ur reply

Directly after unplugged (after Message BATTERY FULLY CHARGED) Then unplug and directly plug in again, wait for Message BATTERY FULLY CHARGED.... and again and again
But....if it works....one or few days later you will have the same issue again [emoji16]
I ignore it after Samsung changed my Battery

cocoooo said:
plug it again when the presentage come 99 or after i unplugged it directly ??
thnx 4 ur reply
Click to expand...
Click to collapse
unplug it when it reaches full charge then plug it again 3 to 5 times .. if it's not working try to do factory reset
Sent from my SM-N9005 using Tapatalk

Amar.B said:
unplug it when it reaches full charge then plug it again 3 to 5 times .. if it's not working try to do factory reset
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
it works really thnQ

Don't do the boring job (factory reset)
It won't help in that case. Trust me!
Gesendet von meinem SM-N9005 mit Tapatalk

buell47 said:
Directly after unplugged (after Message BATTERY FULLY CHARGED) Then unplug and directly plug in again, wait for Message BATTERY FULLY CHARGED.... and again and again
But....if it works....one or few days later you will have the same issue again [emoji16]
I ignore it after Samsung changed my Battery
Click to expand...
Click to collapse
but i bought the phone only a month ago
from your words can i say it's a battery problem ??

No, I don't think that is a battery problem. Maybe a Software Problem in the Charging electronic or just a wrong information.
Sorry, bad English, maybe can't explain correctly what I mean [emoji16]
Gesendet von meinem SM-N9005 mit Tapatalk

buell47 said:
No, I don't think that is a battery problem. Maybe a Software Problem in the Charging electronic or just a wrong information.
Sorry, bad English, maybe can't explain correctly what I mean [emoji16]
Gesendet von meinem SM-N9005 mit Tapatalk
Click to expand...
Click to collapse
no problem thnQ in all cases

cocoooo said:
it works really thnQ
Click to expand...
Click to collapse
Anytime mate
Sent from my SM-N9005 using Tapatalk

charge until 100%, unplug your phone, switch it off, plug the charger and charge for 5 to 10 minutes. Unplug the charger, turn the phone on, plug the charger back for another 5 to 10 minutes.

Actually, guys, the reason for this is completely different.
Modern smartphone charging works like this - the battery is charged at high rate until 80-90%. At that point, the charging rate (how much current is directed to battery) is decreased to avoid overcharging. When battery is fully charged, the charging process is stopped until the battery level drops to about 95%. Then charging process is restarted.
The lowered percentage happens if you unplug during the so-called pause in charging. Android itself may still show 100% in the first place, but then shortly after decreases to the real amount. It is just the way modern batteries are built and there is no way to fix it.
Besides, does the 2-3% of battery really matter that much?

Someguyfromhell said:
Actually, guys, the reason for this is completely different.
Modern smartphone charging works like this - the battery is charged at high rate until 80-90%. At that point, the charging rate (how much current is directed to battery) is decreased to avoid overcharging. When battery is fully charged, the charging process is stopped until the battery level drops to about 95%. Then charging process is restarted.
The lowered percentage happens if you unplug during the so-called pause in charging. Android itself may still show 100% in the first place, but then shortly after decreases to the real amount. It is just the way modern batteries are built and there is no way to fix it.
Besides, does the 2-3% of battery really matter that much?
Click to expand...
Click to collapse
after the battery decreases to 98% it works fine & stable , i just want to know if there is a proplem or it's the normal for the phone
thnQ 4 this information

Lost Battery capacity after opening cover?

I replaced the usb connector board on my Nexus4. Before I did it, the battery was at 49%. After I put everything back together. The phone won't start. I charge it with a USB cable, it shows charging at 0% and with the USB plug in, it boots fine. However, I almost get half the battery life now. It usually can last through the day but now has to be charged in the afternoon. I was on stock 4.4.3 and since then, I did full wipe and switch to latest omni rom nightly 2 days ago.I have tried draining the battery complete and charge it to 100%. Everything works fine but battery life still sucks.
Any idea?
Andy

How much was it before and how much is it now? Care to show screenshots?

I had same prob after a screen replace. During removal I must of damaged the battery, they bend far too easy. I ordered a new one problem solved. If you read about a lot of people bust the battery. Its a right of passage, welcome to the club
Sent from my Nexus 4 using XDA Free mobile app

battery and charge

Hello.
I have a little question:
The battery of my note 3 is subjected to gymnastics whose effects I do not know the long term.
It is charged at 100% normally then after 30 min it is disconnected for 20 seconds but sometimes longer for 10 minutes then it recharges and starts again every 30 minutes.
Do you think that these micro charge and discharge damages my battery or that it is minimal and therefore negligible?

How old is the battery?

a month
If the battery is doing this it is because I am using an inductive charger which disconnects the battery before overcharging.
Envoyé de mon SM-N930F en utilisant Tapatalk

Do you have original battery of 3200 mah or you buy something higher and stronger than original?
I buy battery but with larger capacity about 4200 mAh and I have similar problem and I risk my phone with no name battery.
I have similar problem like you,but I fix it when I change battery and bring back my original from 3200 mAh

Original battery thanks
Envoyé de mon SM-N930F en utilisant Tapatalk