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Charged for 8 hours, battery only at 96%

I got a Nexus S the other day and so far impressed apart from one thing. I left the phone on charge overnight and in the morning it said it was only 96% charged. This was with it plugged into the mains charger for almost 8 hours with the phone on stand-by.
So I read on a thread somewhere you need to discharge the battery fully, then charge the phone with it turned off to correct this. So I did that last night and again this morning it says it's only 96% charged.
I'm also disappointed at how slowly it charges via the USB cable. Had it plugged in for a couple hours at work on my computer and it only went up by around 3%, this is shocking. I'm trying it again now on a different computer and so far it's only gone up 1% in an hour.
What is going on?

It's meant to stop at 95% - 96%
Leaving your battery at high voltage (100%) will cost the battery lifespan to shorten in the long run. So usually chargers do not charge it to 100% at all but slightly below it to lengthen battery life.

OK thanks for your quick response.
Regarding it being slow to charge connected to a computer, is that normal?

Are you leaving your screen on while charging? Because the screen eat alot of power, so that might be the case.

navlem said:
Are you leaving your screen on while charging? Because the screen eat alot of power, so that might be the case.
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Nope, it turns off after 30 seconds. Wifi was also turned off.

Maybe try using SetCPU to alter your processor speed during charging and screen off to the lowest. It will significantly increase your charging speed.

navlem said:
Maybe try using SetCPU to alter your processor speed during charging and screen off to the lowest. It will significantly increase your charging speed.
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I will give that a go. But really should this be something that I have to do, shouldn't the phone charge on it's default settings via USB at a decent rate?

It might be due to programs running at the background. I'm not sure. But my Nexus S charges fast enough though. Not as slow as you mention. Maybe try doing a charge after a reboot of your phone? If it charges faster after the reboot, it is most likely the background processes you had.

Red Arrow said:
OK thanks for your quick response.
Regarding it being slow to charge connected to a computer, is that normal?
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Yes it is. USB only supplies 500mA. Plugging into the wall is usually 700mA or 1A. Have you ever seen how long it takes to charge an iPad on USB? Its wall charger is 2A.
Sent from my Nexus S using Tapatalk

Red Arrow said:
I will give that a go. But really should this be something that I have to do, shouldn't the phone charge on it's default settings via USB at a decent rate?
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No because usb is only half power of regular wall charger, so it takes much longer to charge on usb. It's possible when using the phone during usb charging to pull more power than usb can provide, stopping the charge completely.

Red Arrow said:
I got a Nexus S the other day and so far impressed apart from one thing. I left the phone on charge overnight and in the morning it said it was only 96% charged. This was with it plugged into the mains charger for almost 8 hours with the phone on stand-by.
So I read on a thread somewhere you need to discharge the battery fully, then charge the phone with it turned off to correct this. So I did that last night and again this morning it says it's only 96% charged.
I'm also disappointed at how slowly it charges via the USB cable. Had it plugged in for a couple hours at work on my computer and it only went up by around 3%, this is shocking. I'm trying it again now on a different computer and so far it's only gone up 1% in an hour.
What is going on?
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Click to collapse
I also have this problems, but if don't use the computer usb to charge, it seems no problem.

Slow Charge rate

Is it me or is anyone else getting a slow recharge of their battery. I turned the phone off for an hour and the charge only went up a couple percent

agentscuba314 said:
Is it me or is anyone else getting a slow recharge of their battery. I turned the phone off for an hour and the charge only went up a couple percent
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What did you have it plugged into? If it was a computer or charger meant for a lower powered device (like a Bluetooth) that might explain it.
My G2x charges faster than any phone I can remember.

I went from ~20% to 100% in 1.5 hours yesterday, phone on but idle and with the charger it came with. I would try the software reset (settings>privacy>factory data reset) or hardware reset (power off, then hold home and volume down as you power on) and see if those help.

agentscuba314 said:
Is it me or is anyone else getting a slow recharge of their battery. I turned the phone off for an hour and the charge only went up a couple percent
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I had it plugged into a wall outlet with a strictly wall charger. I know the chargers that sub as a usb and charger, recharge the phone at a slower rate

Mine recharges from sub - 20% to 100% in about two hours on stock charger in a wall outlet.
Sent from my LG-P999 using XDA App

UCFJake said:
Mine recharges from sub - 20% to 100% in about two hours on stock charger in a wall outlet.
Sent from my LG-P999 using XDA App
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That's about what I get, but that still feels long to me. I could charge my N1 in an 70 minutes.

UCFJake said:
Mine recharges from sub - 20% to 100% in about two hours on stock charger in a wall outlet.
Sent from my LG-P999 using XDA App
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Click to collapse
Same results here.

If you can disconnect the data connection of the microUSB cable, do it. This will help to speed up the charging.

OK, so I went ahead and did a factory reset and I will let you know what I get.

I'm getting a slow charge rate to..when i put cm7 on it it wouldn't charge at all for some reason, then after that w/ other roms it would overheat and charge crazy slow, like 1 percent every 5 min, idk maybe i'm inpatience or don't remember how fast it's suppose to be, i need to use juiceplotter and see how fast or slow it charges....i might do a warranty replacement......idk yet......

I am getting a fast charge rate. The fastest I've ever got with a stock charger. Now when I charge it with a Logitech charger for my wireless mouse it is insanely fast. I'm talking going from 15% to 100% in a matter of 30 minutes. Anyone know if this is bad for the battery?

[Q] Wireless charging stops at 100%?

I just bought a wireless charger, and it works great...except it seems to stop at 100%. Rather than keeping it topped off, it will start draining after it completes it's charge (i.e. if i wirelessly charge overnight, it will have 85% battery in the morning)
Thoughts? Is this the way the MAXX works, or is my charger defective?

I believe, and dont quote me but, thats the smart battery in the phone that keeps the phone from overcharging.
abcrndm said:
I just bought a wireless charger, and it works great...except it seems to stop at 100%. Rather than keeping it topped off, it will start draining after it completes it's charge (i.e. if i wirelessly charge overnight, it will have 85% battery in the morning)
Thoughts? Is this the way the MAXX works, or is my charger defective?
Click to expand...
Click to collapse

If you lose 15% of battery overnight while the phone just sits there, you might have bigger problems than just the charger. But to answer your question, I have the oval shaped Nokia charger pad from AT&T. It will get the battery to 100% and maintain it. If I pick my phone up off the charger after 2 days, it will still be at 100%
Sent from my XT1080 using Tapatalk

tCizler said:
If you lose 15% of battery overnight while the phone just sits there, you might have bigger problems than just the charger. But to answer your question, I have the oval shaped Nokia charger pad from AT&T. It will get the battery to 100% and maintain it. If I pick my phone up off the charger after 2 days, it will still be at 100%
Sent from my XT1080 using Tapatalk
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That's very helpful...my charger must be defective (or just cheap...)

abcrndm said:
That's very helpful...my charger must be defective (or just cheap...)
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The phone when charged to 100%, it will stop charging until the phone reaches arnd 97% then charge back up. And it repeats until u unplug it. It prevents over charging. Also, he is right. If it is at 85%, its either ur charger cannot charge as fast. Or ur phone.
Sent from my SM-N9005.
Give a thank if I helped you

[Q] Keeps charging at 100%

Hello,
When I charge my Nexus 5, the battery icon keeps on showing it is charging even so the battery is at 100%. Also my USB charger (not the one LG one) indicates that the device is still charging. Is this normal ? Would this damage the battery ?
Thanks

It's normal.

spitefulcheerio said:
It's normal.
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Thanks ! (But i just find this weird as I expected a device to stop at 100%)

I understand what you're saying but it's not a charging icon, it's a connected to power icon. If you were to use something like the dashclock extension it would show that it actually stopped charging once it reached 100%

Thanks for the reply.
The thing is that I have this charger http://www.portablepowersupplies.co.uk/portapow-quad-usb-mains-charger/) and the LED indicates charging (albeit I did not measure the current ).

Nice unit!
Are you connected to WiFi while charging? I had the really bad battery drain issue while connected to WiFi after the 4.4.2 update. I lost about 30% of charge after 4ish hours while connected. Currently I'm at 92% after 3 hours.
The WiFi battery drain could be causing your phone to not fully charge or at the very least make your charger THINK it's not fully charged. No harm should come of it either way but it's always best to pull your phone off the charger once it gets to 99-100%

Thanks for the reply. I had Wifi activated; it might be the reason.

My wireless charger LED didn't shut off when my N5 was charged in a powered off state. Usually it does once the battery is full.
That said, I don't think it's over-charging the battery, as that would be really bad
Sent from my Nexus 5 using Tapatalk

Don't worry about it. This isn't the 2000s where constant charging is an issue.

Just tried with the Wifi Off. My USB charger then indicates that the unit is not charging.
Thanks for the replies and great help.

Don't worry about it. The charger isn't the thing that determines how charging is handled, it's all done on the phone side. The phone knows how to take and stop taking power.
In the case of the Nexus 5, it most-likely stops charging the battery but continues using the power from the charger to actually power the unit (thereby no-longer using the battery to run the device, but not charging it any longer).

Charging very very slowly

Hello,
I have had this tabled for a while and it was always charging extremely slowly but I never took it out of the house so it wasn't a bid deal for me. However I have given it to my mother and she uses it in other ways. Anyways, the note 10.1 is the slowest charging device I have ever seen. It takes probably 48h-72h to charge it completely. I am using the original cable and power brick, I have tried ALL the outlets in my house, I have tried using the computer, I have tried using another cable (probably like 5 different ones) and other bricks (from iPads, my note 5, etc) and nothing is working. I have seen other posts regarding slow charging but none of them solve my problem.
Thank you

Thats is not normal .
I would factory reset and flash a stock rom .
Swap battery or take to a service centre .

aleks945 said:
It takes probably 48h-72h ...
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"probably"?
You can't troubleshoot perceptions and guesses. How long does it actually take--repeatably--to charge from what percentage to what percentage? (i.e. "Went to bed, battery was at 40%, charged overnight for 7 hours and battery was at 60%.")
There are apps to check charging current (Ampere being one of them).
The fastest charge you can get is with the OEM charger in an outlet, not a PC.
Understand that this is a 7,000mAh battery without any quick charging applied to it.
Additionally, if you are using the device whilst charging it, you aren't really charging it since the drain is about the same as the charge; you'll effectively neither charge nor discharge.
Finally, check for battery-draining apps; you might not have a charging problem but an app-drain problem.

Rolo42 said:
"probably"?
You can't troubleshoot perceptions and guesses. How long does it actually take--repeatably--to charge from what percentage to what percentage? (i.e. "Went to bed, battery was at 40%, charged overnight for 7 hours and battery was at 60%.")
There are apps to check charging current (Ampere being one of them).
The fastest charge you can get is with the OEM charger in an outlet, not a PC.
Understand that this is a 7,000mAh battery without any quick charging applied to it.
Additionally, if you are using the device whilst charging it, you aren't really charging it since the drain is about the same as the charge; you'll effectively neither charge nor discharge.
Finally, check for battery-draining apps; you might not have a charging problem but an app-drain problem.
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The time varies, but it is between 2 and 3 days to charge from 0, never less.
I do use the OEM charger and cable and an outlet.
I do understand that but 2 days seems a bit of a stretch, don't you think?
I am definitely not using it while charging, because it's impossible. It just doesn't charge fast enough to be able to use it. It drains quicker than it charges.
I highly doubt that, I only have YouTube and Chrome installed on it.

Above 6 hours with stock rom and charger is abnormal .
Usual replies .
One cable
Two charger
Three battery or connections .
Four USB port
Five motherboard .

aleks945 said:
I do understand that but 2 days seems a bit of a stretch, don't you think?
I am definitely not using it while charging, because it's impossible. It just doesn't charge fast enough to be able to use it. It drains quicker than it charges.
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Yeah, 2 days isn't right. It also shouldn't be discharging faster than charging, especially with the OEM charger.
I leave mine plugged into my PC (only 500mA max current) with the screen on (about medium brightness, mostly black screen, which is most power-friendly for OLED) using LectureNotes all day and it will neither charge nor discharge (technically, it's charging at the same rate it is discharging); the percentage doesn't move.
What does Ampere report?
Do you have another charger you could try? any 5V and at least 2A would work.
Also, ensure your cable isn't intermittently open (a break in the cable, temporarily disconnecting the charger).
If the cable and charger are good, then the battery would be the next likely culprit, followed by the charging circuit.
Finally, ensure heat isn't an issue (is it in a case? remove it).

Mine was messed up but I concluded it was the port and cable. I got a new cable and then replaced the charging port and viola. Charge time went from 8 hours back to the usual 3-4