Develop Bugs

really slow battery charging (via USB and wall...)

Obviously worse with the USB charging. Barely charging at all that way, in fact. But even with the wall charging, it is very very slow -- anyone else having this problem? Any known fixes?

Yes I agree it is slow... Very slow.
My Photon was very fast charging up, it was incredible.
.: sent from my Samsung Galaxy S II Epic 4G Touch :.

Guys... The original epic charges super slow. The epic touch 4g charges way faster than the original epic even with a bigger battery.

puff601 said:
Guys... The original epic charges super slow. The epic touch 4g charges way faster than the original epic even with a bigger battery.
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Click to collapse
That's how it is for me as well. Its much faster than the Epic. I don't know how it compares to the Photon.
Sent from my SPH-D710 using xda premium

Samsung smartphones are generally slow charging. My Nexus S 4g takes 4 to 6 hours to charge. Head on over to Samsung Galaxy S2 forum and you will hear the same complaints. Previous models, and I think Epic Touch are too, built to limit charge rate to 650 ma max. It may limit the charge rate even further if the phone is being used while charging.
This was the info I was able to dig up while researching the cause of my slow charging Nexus S.

Photon charged about 5x faster than my epic... So gs2 should be slower than photon..
Sent from my SPH-D700

whatsitsnamenow said:
Samsung smartphones are generally slow charging. My Nexus S 4g takes 4 to 6 hours to charge. Head on over to Samsung Galaxy S2 forum and you will hear the same complaints. Previous models, and I think Epic Touch are too, built to limit charge rate to 650 ma max. It may limit the charge rate even further if the phone is being used while charging.
This was the info I was able to dig up while researching the cause of my slow charging Nexus S.
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Click to collapse
Isn't the charging rate partially a function of the kernel? I could swear that one of the devs at SDX tweaked a kernel for the Moment, and one of his tweaks was "Increased power draw from USB for quicker charging."

Best way is chrage at nite time
Sent from my SPH-D710 using XDA App

Dalmus said:
Isn't the charging rate partially a function of the kernel? I could swear that one of the devs at SDX tweaked a kernel for the Moment, and one of his tweaks was "Increased power draw from USB for quicker charging."
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Click to collapse
Yes, but IIRC no one was successful at manipulating for the OG epic, not sure if it was galaxy related or not. Hopefully we'll have a dev who can make it happen on this device.
Sent from my SPH-D710 using XDA Premium

leatherneck6017 said:
Yes, but IIRC no one was successful at manipulating for the OG epic, not sure if it was galaxy related or not. Hopefully we'll have a dev who can make it happen on this device.
Sent from my SPH-D710 using XDA Premium
Click to expand...
Click to collapse
Thatll be sweet...
Sent from my SPH-D710 using XDA App

Takes longer to fill a bigger tank.

Scaplet said:
Takes longer to fill a bigger tank.
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Click to collapse
What bigger tank? The Evo 3d is about the same capacity battery and recharges about twice as fast. Same goes for the Motorola Atrix.

whatsitsnamenow said:
What bigger tank? The Evo 3d is about the same capacity battery and recharges about twice as fast. Same goes for the Motorola Atrix.
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I thought that the 3D had a 1730 mAh battery?
Not that its a huge difference, of course...

Wouldn't charging it slower allow the battery to last longer? I don't mean like longer as in on one charge, I mean like as in years. Batteries have a tendency to go bad after a few years of use and can't be charged the same way after a while. But afaik with smaller Ma being used, its supposed to delay the aging effect of the batteries.

My Epic 4G and now the Touch always have charged slowly. To combat this, I use my old Palm Pre charger dongle (the part the plugs into the wall) and connect the Epic's USB cord to it and things speed up a bunch. I'm not sure if I'm damaging my batteries, but I have done that for a year on my OG Epic and haven't noticed any battery deterioration. I also purchased a fast charger for the car and it does the same thing--very speedy. So I don't think that it's the phone or the cable or the OS, but rather the actual plug. So you might go and look for a replacement plug from another phone or a a generic one and use that to charge. It has worked well for me.

That's rediculous it shouldn't take more than 3 hours for a complete charge and 6 hours for a partial charge makes the device useless this isn't the 70'a

If you let the battery drain all the way, I'll get a full charge in about 2.5 hours. If you keep plugging in during the day, charging will then be very very slow.
My experience anyway.

charging time on Gnex

I upgraded to Jelly Bean the day before yesterday. But upgrading I've found that my charging time gone up quiet a bit. Its taking almost 30-40% more time to charge than it used to do earlier on ICS (stock). I'm running stock Jelly Bean on my Gnex. Is someone else also having this issue?

For me, approximatively 2-3 hours for full charging.
I think its more faster than ICS

I think I'll try different chargers to check the issue..

My GN is full in just 1 hour.

PouleY said:
My GN is full in just 1 hour.
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Click to collapse
That is what I also used to get before moving to 4.1.1

Earlier my phone used to get warmer while charging and now is completely cold.
Is there any solution or reason for the slow charging?
Sent from my Galaxy Nexus using xda app-developers app

vins18 said:
For me, approximatively 2-3 hours for full charging.
I think its more faster than ICS
Click to expand...
Click to collapse
I am in this time frame

Hm... I'm no expert at this, but maybe JB slowed down the charging amount so GNex doesn't get hot when charging. I found my GNex to charge a bit longer after the update too. But now when I'm using my GNex, it doesn't get as hot as 4.0.x

Takes a couple hours. But completely dependent on the charger and cable. Long cables have more line-loss, and chargers vary from 500mA to 2.1A in output.

martonikaj said:
Takes a couple hours. But completely dependent on the charger and cable. Long cables have more line-loss, and chargers vary from 500mA to 2.1A in output.
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Click to collapse
I use the stock Samsung charger so
Sent from my Galaxy Nexus using xda app-developers app

3 hours using fast charge and 4 hours without fast charge.

kyokeun1234 said:
I use the stock Samsung charger so
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Stock charger runs at 1 amp. If you are using a custom kernel it may or may not support the full charging current that the phone supports.
Sent from my Sony Tablet S using xda premium

martonikaj said:
Takes a couple hours. But completely dependent on the charger and cable. Long cables have more line-loss, and chargers vary from 500mA to 2.1A in output.
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Click to collapse
LOL what? Longer cables in NO WAY effect charging time.
LOL... that's a good one. Also, the Galaxy Nexus charger is rated at 1 amp. You should not use a charger OVER 1 amp or you will damage the phone's charging circuit.

And I used to thought the higher Amperage doesn't affect the battery at all. Even if the 'amp' is high,the device will pull only that much of 'amp' that it needs. Rather we should ensure that voltage should not be higher than the rated one for the device.

kyokeun1234 said:
Hm... I'm no expert at this, but maybe JB slowed down the charging amount so GNex doesn't get hot when charging. I found my GNex to charge a bit longer after the update too. But now when I'm using my GNex, it doesn't get as hot as 4.0.x
Click to expand...
Click to collapse
That is quiet possible.

Mine takes like 1hour and a half from nothing to a 100%
Sent from my Galaxy Nexus using xda premium

GldRush98 said:
LOL what? Longer cables in NO WAY effect charging time.
LOL... that's a good one. Also, the Galaxy Nexus charger is rated at 1 amp. You should not use a charger OVER 1 amp or you will damage the phone's charging circuit.
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Click to collapse
A longer and/or thinner cable does have more resistance and so loses a bit of its power (V*A) over the run as waste heat. If it is already at capacity, that loss would slow charging a little bit compared to a shorter cable. If not, then its just wasted energy for heating the cable.
To your second point, any 5volt charger capable of delivering over 1 amp at 5V ( clean DC ) will safely charge a GNexus. Any unnecessary amperage capacity will just not be used. Charger will run cooler.
You could use a 6V auto battery charger with LOTS of amp capacity if it were 5V instead of 6V, and if it were clean DC, but it is not.

Been having bad battery life? It might be your charger and not your phone

This isn't my app, but I wanted to give fellow T989 users a heads-up on it:
http://forum.xda-developers.com/showthread.php?t=1801608
Apparently, our phones don't get along well with certain 3rd party chargers, and if you use one, it'll wakelock your phone until you reboot. For those of you who don't know what a wakelock is, the short version is it prevents your phone from deep sleeping, screwing your battery life.
I'd been using an old Blackberry charger with my phone, and using the linked app, tested it and discovered it was causing this problem. After switching to a different charger, I get much better battery life now.
I highly recommend anyone not using the original charger to test their charger and make sure it's not ruining your battery life.

manekineko said:
This isn't my app, but I wanted to give fellow T989 users a heads-up on it:
http://forum.xda-developers.com/showthread.php?t=1801608
Apparently, our phones don't get along well with certain 3rd party chargers, and if you use one, it'll wakelock your phone until you reboot. For those of you who don't know what a wakelock is, the short version is it prevents your phone from deep sleeping, screwing your battery life.
I'd been using an old Blackberry charger with my phone, and using the linked app, tested it and discovered it was causing this problem. After switching to a different charger, I get much better battery life now.
I highly recommend anyone not using the original charger to test their charger and make sure it's not ruining your battery life.
Click to expand...
Click to collapse
Thanks for the heads up. This makes perfect sense.
Sent from my SGH-T989 using xda app-developers app

manekineko said:
This isn't my app, but I wanted to give fellow T989 users a heads-up on it:
http://forum.xda-developers.com/showthread.php?t=1801608
Apparently, our phones don't get along well with certain 3rd party chargers, and if you use one, it'll wakelock your phone until you reboot. For those of you who don't know what a wakelock is, the short version is it prevents your phone from deep sleeping, screwing your battery life.
I'd been using an old Blackberry charger with my phone, and using the linked app, tested it and discovered it was causing this problem. After switching to a different charger, I get much better battery life now.
I highly recommend anyone not using the original charger to test their charger and make sure it's not ruining your battery life.
Click to expand...
Click to collapse
The phone can detect when you're using ANY charger but the original Sammy charger. There are 2 switched pins on the charger that detect this. When the phone detects an incompatible charger it only chargers at 350mah. When using the normal charger it charges at a full 700mah or whatever the charger pushes to the phone.
Sent from my SGH-T989 using xda premium

RushAOZ said:
The phone can detect when you're using ANY charger but the original Sammy charger. There are 2 switched pins on the charger that detect this. When the phone detects an incompatible charger it only chargers at 350mah. When using the normal charger it charges at a full 700mah or whatever the charger pushes to the phone.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
If i was to replace just the USB cord that came with the phone with a generic one, would this cause the charger to only charge at 350mah?

RushAOZ said:
The phone can detect when you're using ANY charger but the original Sammy charger. There are 2 switched pins on the charger that detect this. When the phone detects an incompatible charger it only chargers at 350mah. When using the normal charger it charges at a full 700mah or whatever the charger pushes to the phone.
Sent from my SGH-T989 using xda premium
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Click to collapse
When I plugged it in to the Sammy charger it said fast charge, at 905mah
Sent from my SGH-T989 using xda premium

rahilkalim said:
If i was to replace just the USB cord that came with the phone with a generic one, would this cause the charger to only charge at 350mah?
Click to expand...
Click to collapse
Nah the cable doesn't matter. Just the charger. And loopdogg I bet! My phone goes from dead to a full charge while on in about 3 hours. Love it!
Sent from my SGH-T989 using xda premium

RushAOZ said:
Nah the cable doesn't matter. Just the charger. And loopdogg I bet! My phone goes from dead to a full charge while on in about 3 hours. Love it!
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Makes sense. Thanks for the update.

RushAOZ said:
The phone can detect when you're using ANY charger but the original Sammy charger. There are 2 switched pins on the charger that detect this. When the phone detects an incompatible charger it only chargers at 350mah. When using the normal charger it charges at a full 700mah or whatever the charger pushes to the phone.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Actually, I have a number of chargers that work to fast charge and work properly. Tested them with the app I linked and they come out without issue.
These include the charger that came with my Pantech Element tablet, charger from a Palm Pre, and charger from my old HTC Touch Pro 2.
They all charge at 900ma+ and don't cause wakelocks.

manekineko said:
Actually, I have a number of chargers that work to fast charge and work properly. Tested them with the app I linked and they come out without issue.
These include the charger that came with my Pantech Element tablet, charger from a Palm Pre, and charger from my old HTC Touch Pro 2.
They all charge at 900ma+ and don't cause wakelocks.
Click to expand...
Click to collapse
Sorry, but that's a flat out fib. This subject has already been fully established and spoken about. Look it up. Even TheDerekJay himself has spoken and elaborated on this with his development findings on this phone.
I also have numerous chargers. 2 700mah Sammy chargers, an HTC my touch 4g charger, iPhone 1000mah charger, and Evo 3d charger.. safe to say none of them charge nearly as fast as the Sammy chargers. Approximately 3 hours from 0% to a full charge. Around 5-6 hours with the others.
Sent from my SAMSUNG-SGH-T989 using xda premium

I was testing with differents chargers and cables and there is a lot of changes about both. The cable make a big job. Using the same charger and two diferent cables with one i get wakelocks 301mA and with the other one I get fast charging at 895 mA.
Sent from my SGH-T989 using xda premium

I'm using the Samsung charger that came with and the app says charger wake lock charging at 506 ma
Sent from my SGH-T989D using xda app-developers app

Battery charging awfully slow

How long is it taking fr you guys to get a full charge? I'm getting about 12% an hour....no idea why, this is my first tablet.
Sent from my SM-P600 using xda app-developers app

People have said their charge times were around 8hrs so it sounds about right. I have always charged mine when I'm either sleeping or when I'm busy with something else but the only time I kinda paid attention to it, I think it charged from 10 - 100% in about 6hrs but I could be wrong.

Mine seemed to charge in about 4 or 5 hrs from 0% to 100%. I had the tablet turned off.
sent from my p600 note tablet

ditto
I was surprised too with the slow charging
as the new phones like my LG G2 is extremely fast
I just put up with it.......
definitely be staying with tablets
I would like a SD800 chip in a 8" with spen.....

I found mine got to 70 percent in a couple hours, make sure you use supplied charger lead
Sent from my SM-P600 using XDA Premium 4 mobile app

Included charger
I think the charger that Samsung includes with the note is underpowered. I was quite surprised to see it is exactly the same as the one for my Galaxy S4.
Hackhound

With screen off and stock charger, my charging rate is 24%/hour for the first 85%. After that the charging rate is drop down 12% or low.

hackhound said:
I think the charger that Samsung includes with the note is underpowered. I was quite surprised to see it is exactly the same as the one for my Galaxy S4.
Hackhound
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Click to collapse
the 10.1-2014 is little more powerful than the s4 charger. i believe it's 2A 5.3V where the s4 is just 5V.

Ok cool no complaints because the battery LIFE is great. Just wanted to be sure of the norm. I'm sure if I power down I'd charge much quicker. Also, I am using the provided Samsung charger just btw. Thanks!
Sent from my SM-P600 using xda app-developers app

This is the only thing I don't like about this tablet. Luckily it lasts me 4 days before I have to charge it.
Sent from my SM-P600 using Tapatalk 4

Like others I charge mine when I sleep. I need to see how long it takes to charge though. I just don't want to be without my tablet when I need it so I take precautions

madsquabbles said:
the 10.1-2014 is little more powerful than the s4 charger. i believe it's 2A 5.3V where the s4 is just 5V.
Click to expand...
Click to collapse
I just took another look, just to be sure. BOTH chargers are 5.3V, 2A.
hackhound

hackhound said:
I just took another look, just to be sure. BOTH chargers are 5.3V, 2A.
hackhound
Click to expand...
Click to collapse
well ain't that something. mine is just 5V. i've got a verizon version bought on the day it came out. maybe they're swapping them out to 5.3V now.

madsquabbles said:
well ain't that something. mine is just 5V. i've got a verizon version bought on the day it came out. maybe they're swapping them out to 5.3V now.
Click to expand...
Click to collapse
I'm not sure 0.3v is going to make much difference.
Sent from my SM-N900T using Tapatalk

If I were to buy a charger with more Volt output (if they exist), would it speed up charging? Or would the tablet cap the power it receives so that the charger basically acts no differently from the stock one?
Sent from my LG-E980 using Tapatalk

aznmode said:
I'm not sure 0.3v is going to make much difference.
Sent from my SM-N900T using Tapatalk
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Click to collapse
on my s4 charger i get about 20-21% per hour. the gn10.1 (5.3v) charger i get about 24-25% per hour using the same cable - i tested that a while back.
---------- Post added at 03:20 PM ---------- Previous post was at 03:20 PM ----------
spexwood said:
If I were to buy a charger with more Volt output (if they exist), would it speed up charging? Or would the tablet cap the power it receives so that the charger basically acts no differently from the stock one?
Sent from my LG-E980 using Tapatalk
Click to expand...
Click to collapse
be careful about getting one who's voltage is too high. you can burn up your electronics easily.

This is the only tablet that while playing an high intensive game like Modern Combat 4 where it did not lose charge. It actually was still charging and gaining steadily. This means that I am able to play for as long as I choose without worry of not having enough juice. I have owned many tablet over the years the latest one before the Note was the Nexus 10 and that drained battery while charging while in use. Very happy.
Sent from my SPH-L710 using xda app-developers app

madsquabbles said:
on my s4 charger i get about 20-21% per hour. the gn10.1 (5.3v) charger i get about 24-25% per hour using the same cable - i tested that a while back.
---------- Post added at 03:20 PM ---------- Previous post was at 03:20 PM ----------
be careful about getting one who's voltage is too high. you can burn up your electronics easily.
Click to expand...
Click to collapse
In that case I'm not even going to try a charge worth more voltage (can't find any above 5V anyways)
Thanks
Sent from my SM-P600 using Tapatalk

Cable impedance can make quite a difference. So use short, thick usb cables. In a test from german mag c't an S4 charged fastest with a certain Huawei ps. If the S4 is also charging at 2A, this power supply could also be used here. Sadly, that issue of the mag went to the bin.

lecorbusier said:
Cable impedance can make quite a difference. So use short, thick usb cables. In a test from german mag c't an S4 charged fastest with a certain Huawei ps. If the S4 is also charging at 2A, this power supply could also be used here. Sadly, that issue of the mag went to the bin.
Click to expand...
Click to collapse
Yup this is true. Some cables restrict the current so even if you use a 2.0amp adapter it will still charge slow because of the cable. The micro USB cable that comes with the s4, s3, and some Motorola are the good ones. Generally they're thicker than most. Ive bought extra from Amazon. You can use an app called "galaxy charging current" to check charging in mah. There may be other apps out there. But it's good for knowing your tablet is charging at its optimum or if you're using a good cable.
Sent from my SM-N900T using Tapatalk

[Q] Chargine speed?

Just got my G3 last night.
Loving it so far, but i noticed that the charging speed is very slow..
Also, the charger and cable that came with the phone gives me "weak power" notification even when I plug it into the wall.
So I have to use my old charger and cable...
any thoughts ?

Coming from a Note 3, this does feel slower.
Nexus ONE

I'm still using my galaxy s4 charger since its a larger cord. Charges about the same speed as my g2.

Yep coming from the note 3 I notice a difference too. It's gotta be the fact the note had usb 3.0
Sent from my LG-D851 using XDA Free mobile app

Yes, coming from the Note 3, the G3 is slow as hell. Actually, very disappointed on it but it is what it is.

I haven't even used the one that came with the phone. Use the blackberry blade chargers, they'll charge at about 1% a minute or so. Best 5 bucks I ever spent.
Sent from my LG-D851 using XDA Free mobile app

The charger that comes with the phone is 1.8 amps, the Note 3 comes with a 2 amp charger. Not sure how much current the G3 can pull vs the Note 3, but you could try using a Note 3 charger and see if it's any faster.
I had an old charger by my nightstand and when I plugged it in at around 20% it said it would take it 6 hours to charge haha. The included charger quoted 2 hours.
It's possible that your cable (or the charger) is damaged OP

I plugged my 2 day old G3 in yesterday at 18% and it calculated charge to 100% to only take 1hr46min. Your charger must be phuked if it is showing slow charging. All chargers I have that are over 1.5mAh charge at the faster rate.

OhioDroid80 said:
I plugged my 2 day old G3 in yesterday at 18% and it calculated charge to 100% to only take 1hr46min. Your charger must be phuked if it is showing slow charging. All chargers I have that are over 1.5mAh charge at the faster rate.
Click to expand...
Click to collapse
Mine charges no slower than any other phone I've owned. I don't do Samsung, so I can't say anything about them. Charges every bit as fast as my wife's M8.

T-Fanatic said:
I haven't even used the one that came with the phone. Use the blackberry blade chargers, they'll charge at about 1% a minute or so. Best 5 bucks I ever spent.
Sent from my LG-D851 using XDA Free mobile app
Click to expand...
Click to collapse
This ^^^. $5 on eBay for TWO of them. They're 6 feet long, and charge at 1.8A - fast as hell on my N5. I'll see how it is on the G3 when I get it. But they're honestly so good I bought 6 of them total. For $15, and how good they are, why not?

Did u try them? Do u have link from ebay?