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Recently I traded my galaxy nexus for a galaxy tab 10.1. But whenever I plug it into a computer or an outlet there's a red x on the battery... it charges reallllly slow. I left it to charge for nine hours from an outlet while turned off, and it went from 5% to 55%. WOW. That's really slow. So I thought that the problem is the cable so I bought a new cable that came with a car adapter. And it worked like a charm in the car. However when I traded I kept the 3 pronged galaxy nexus charger. So anyways I arrived home happy, but I wanted to test it in the computer... Red x again. I tried the wall outlet, again with the x. I tried the wall outlet with 110v and 220v still red x. Then I looked at both outputs on the wall charger and car charger both had the same output which is 5volts and 1A. Then I looked at the input and the car charger was 12-24VDC and the wall outlet was 100-240v and 50Hz and 0.15A. I need help please.
I have 3.2 honeycomb and P7500.
I think that this is an internal issue software wise.
If you need anymore information don't hesitate to ask.
Thanks in advance
Sent from my GT-P7500 using xda app-developers app
On stock settings u wont be able to charge the device connected to ur computer and u will get the Red X on the battery icon! Therez a small tweak to activate that feature to activate charge on pc connect but u will loose the mtp connection. As far as this issue... Seems to be a battery proble. Still try to flash and get to stock to confirm.
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What do you mean by loosing mtp? Also I'm a bit noobish at this because I just switched from ios. So can you dumb Down what you said a little. And what do you mean by "still try to flash and to get stock to confirm."
Also my problem is wall charging.
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I get that if I try use galaxy nexus charger, however if I charge my galaxy nexus with the tab 10.1 charger I have no problems, make sure your using the correct charger, and for the slow charging I have a USB extension cable if I use that it can take up to 12 hours for a full charge
By charger do you mean cable or outlet?
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simplest answer is that the red X means that you're not supplying enough voltage to your tablet. You need 2A (A = Amps), computer USB ports generally do 500mA (1/4 of what you need). Phones usually need less. So the reason your tablet won't charge off the phone charger is because it doesn't supply enough voltage; the phone does fine on the tablet charger because it's just oversupplied (don't worry, your phone won't be damaged by this!)
So what you need is:
1) an original charger for this particular tablet (the cable probably isn't the issue, but I've seen cables that can't transmit the full voltage. The nook color is a good example of this)
2) a 2A charger - can't promise any particular ones work though...
3) (and this is the one you should do): You're on XDA. This is a place for folks who root and install custom ROMs on their devices. Most of the ROMs have USB charging built-in (in the Kernel; don't worry about what that means). Install a custom ROM (I'd suggest AOKP). Problem solved, plus you've increased both performance and functionality of your device exponentially. If you're not willing to do this, XDA probably isn't the place for you anyways.
Ayouby said:
By charger do you mean cable or outlet?
Sent from my GT-P7500 using xda app-developers app
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The outlet , the one for my tab is twice as big as my Gnex one, I guessing they both give out different power, get the official charger!! like I said I can replicate that any time I want by using the tab cable with my Gnex outlet,
Thank you soooo much
Sent from my GT-P7500 using xda app-developers app
I found a solution to a problem that was really vexxxxing me. One of my chargers was working and the other (longer lead) all of a sudden started showing the red cross. Ahhh. The solution (http://www.androidtablets.net/forum...galaxy-tab-10-1-not-charging-brand-new-3.html) was to blow very hard on the 30 pins of the charger and hey presto - started charging again without the red cross.
There are solutions to this problem with quite a few custom ROMs. Task's ICS for example has this patched. I am quite certain there are others.
Hi all!
I charged my Xperia Neo with another cable (the one from Kindle reader) and it actually charged it up much faster than with the stock one. I used the official transformer only with a different cable.
I've noticed that with the official set my phone charges aproximately at half the current than with others. So, I get it to charge at around 500mA with original and around 900mA with others (max. current as it depends on SOC - State Of Charge).
Is it any bad for the battery? How bad?
Actually, other devices such as Nexus7 charge at this current. And I believe they all have similar battery technologies.
It is safe, its like using a slow charger and a fast charger concept. The downside is the battery will reach its wear and tear and lessen its life.
Sent from my MT25i using xda premium
popoykevin said:
It is safe, its like using a slow charger and a fast charger concept. The downside is the battery will reach its wear and tear and lessen its life.
Sent from my MT25i using xda premium
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It would lessen its life anyways since the battery needs to be charged, wouldn't it? Does it really matter to charge it at a higher current (around 1A)?
I'm no expert on this issue so I think that if Sony designed the transformer and the cable in that way there must be a reason.
Also I noticed that the heat from the battery produced during charging is higher.
- With original transformer/cable: 28ºC peak.
- With original transformer and a different cable: 38ºC peak.
Actually, I think that even wtih 3D games it doesn't reach that temperature.
Last time my phone was charging at higher current and i was doing a phone call it restarted after a while. Not sure if it was due to temperature though, but it might not have been the reason since my phone reached 41ºC before and no reboots have happened.
Somebody knows what range of temperature should this phone work with? I mean, not to provoke a reboot nor to damage the hardware.
I usually use and HTC one that is 1A at 5v and my neo is perfect... for example Samsung give you also a 1A at 5v Charger
That's what I wonder.
If all phone batteries are similar in the technology they use, why Sony provided a cable that reduces the charging current?
Sent from my MT15i
Did anyone try to use HOX+ in car as navigation? I have quite strong charger in car made for iPad (2.1A rated USB) and it is not able to charge phone when it is running navigation (Sygic, but it doesnt matter). It seems to me, that charging current is too low to charge battery and also power phone, which is actively used. Tried to repeat at home, again big Apple USB charger from iPad rated 2.1A and while I was actively using phone (browsing etc), charger was able to get 1% of battery charged per 15-20 minutes. Which is too long.
Phone is getting warm or even hot while using CPU actively (Chrome is able to run all 4 cores while rendering page) and maybe there is some protection to avoid HOX+ getting too hot while charging? Or maybe internal logic just doesnt take more juice from charger when phone is charging and being actively used (to power CPU/GPU and also charge battery)? Anyway result is that with intensive CPU/GPU apps like navigation, I cant charge phone fast enough and it is actually discharging! No matter how strong or good your charger is, phone takes constant current and sometimes its just not enoug...
Anyone got similar problems?
The problem is that you shouldn't use chargers meant for other electronic devices.
How is it with the charger supplied with the X+?
Bbattery Monitor Widget is good to track charge/discharge value.
I have not noticed anything out of the ordinary, even using the phone while it is charging.
hardstuffmuc said:
The problem is that you shouldn't use chargers meant for other electronic devices.
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And what is the difference between chargers with USB ports? I could understand that using cheap noname charger from China could be problem, but I'm using branded from Apple, which is known to be really well made. And it is providing 5V and up to 2.1A of current.
Anyway cant use original because I bought phone in UK and they have some ugly shaped power plugs unlike rest of Europe
...but it ain't working, obviously. A power adapter is like a couple of €s, and @amazon original charger are around 7 €
Sent from my HTC One X+ using xda premium
I've used both an OEM US charger and the UK charger with an adapter with the OEM cable and both have done fine. It does take longer to charge while using it, but that's no surprise.
The Apple charger should do better.
Simply put, the device reduces charge rate if the device gets too warm. I don't know if this is happening but it's something to keep in mind.
I had this issue also when i was using the device. Charging was stuck at 99% and did not change anymore.
Sent from my HTC One X+ using xda app-developers app
Well, you probably can't top the battery while charging because the phone is drawing more current than what the charging circuit (internal to the phone) is able to deliver to the battery (while charging).
Been digging in this problem a little bit more and found strange pattern. Since I cant use original charger (UK version doesnt fit my outlet), I have to charge with Apple ones. I have one big for iPad3 (strong marked as 2.1A), one small one with 1A and one small one chinese copy from DX (also 1A). When I try to charge phone with first two, it just charge like USB (settings>power and there you can see type of chargin on the top of screen). When I use chinese copy, it charges like proper AC adapter, quite fast. But after while, touch screen is messed up and it is almost impossible to control my phone. It seems like some static electricity build up or something like this messing with toucscreen mechanism. It gets fine few seconds after removing phone from charger.
Tried different cables, have 3 types at home. Original cca 1m long, only chinese charger woks in AC mode. Then I have extra short for drive, same behavior like original and two long ones (2m), chinese from DX but well made with quite thick cable and with this even chinese sometimes charge like USB, but sometimes it connects like AC.
Always thought that Apple chargers are good and used them to charge other gadgets, never had any similar problems. Seems that One X+ is quite picky with chargers, anyone can verify if it is just my piece?
Coming from the s3 which I thought charged really fast. This phone seems to crawl. anyone else think the same?
Sent from my SCH-I545 using Tapatalk 2
It's the opposite if you use the supplied charger.
Sent from my SCH-I545 using xda premium
^^ what he said. 5v and 2.0amps is like double the normal chargers... 2.0amp is crazy fast... from 32% to full in just under an hour
Yup I bought an extra one on Amazon because of how slow my old charger charges it. It's like trying to charge a laptop with a phone charger haha you need the more powerful charger. My car charger claims its 1amp too but I feel like it charges super fast too.
sent from my galaxy s4
Thank you all and good to know. That's one thing I never read about. Gonna have to buy a few spares
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travishamockery said:
Coming from the s3 which I thought charged really fast. This phone seems to crawl. anyone else think the same?
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I have the same prob. Charged about 7% in 30 mins (using the supplied charger). Charges fine when I use my N7 charger though. I'm gonna have to check the charger when I get home.
Just for the hell of it, here is my how my charge is going right now:
7% - plugged in at 3:22
21% - 3:31
33% - 3:42
44% - 3:52
57% - 4:04
83% - 4:28
For what its worth I don't have this issue with charging - s4 charges comparable to s3 HOWEVER i am not using stock charging that came with the box, I am using cables i have had from before and sometimes even use the USB to wall plugs from Apple and/or BB or whatever I have had lying around - seems to work well.
With a 5V 2 amp charger it goes like a bat out of he'll, using my thunderbolt's 5V 1 amp charger it's quite slow.
Sent from my SCH-I545 using xda premium
i have noticed that having it plugged into either a car charger or a computer, it does NOT charge very quickly... not to the point where it is annoying but, slow enough to notice a difference...
If i take the cable from the box and plug it into my USB hub (it has it's own power source also) if im using it for much other then file transfers i can still lose power off battery. It just seems to slow the battery drain instead of just charging slower then plugged into the wall with the 5V 2amp plug. Now obviously if I'm not doing much with the phone while on the USB it will charge but much slower then the wall charging
Eric214 said:
If i take the cable from the box and plug it into my USB hub (it has it's own power source also) if im using it for much other then file transfers i can still lose power off battery. It just seems to slow the battery drain instead of just charging slower then plugged into the wall with the 5V 2amp plug. Now obviously if I'm not doing much with the phone while on the USB it will charge but much slower then the wall charging
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That's to be expected when plugged into a source that's limited to 500 mA.
Sent from my SCH-I545 using Tapatalk 4 Beta
---------- Post added at 07:52 PM ---------- Previous post was at 07:49 PM ----------
vue said:
For what its worth I don't have this issue with charging - s4 charges comparable to s3 HOWEVER i am not using stock charging that came with the box, I am using cables i have had from before and sometimes even use the USB to wall plugs from Apple and/or BB or whatever I have had lying around - seems to work well.
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Bear in mind that the phone will charge faster using the stock cable than it will with other cables.
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My s4 flies on the charger.
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Same here...on stock charger my phone charges v3ry quickly. Are you rooted with special ROM? Are you using non samsung charger?
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Ok, there's something else going on here. Maybe its software related.
My S4 will only charge fast on the supplied charger. The cable doesn't seem to matter; I tested a bunch of them. I have an assortment of other 2A chargers and none do better then barely keeping up with power useage; hardly any charging at all. Again, the usb cord doesn't seem to make any difference.
Now, I've read mention of a "fast charge" feature that the kernel developers are "turning on". I haven't found a good explanation of what exactly that means but it appears to me that Samsung tried to make the device only charge at the full rate using their chargers and at a minimal trickle charge rate for all others even if they are capable of the full 2A output.
Then there is the problem of buying extra Samsung chargers since there appear to be a lot of knock-offs that will not get the phone to charge at full rate.
What a stupid thing to be such a PITA.
Anyone have any solid info on this?
just about every samsumg device either needs a kernel hack or an adapter to get fast charge off of a non-samsung charger. you can grab a few of these:
http://dx.com/p/usb-data-charging-extension-cable-for-samsung-p1000-black-91141
and use them with just about any 2amp charger with no problems on my old galaxy tablets or my galaxy note and nexus getting fast charge(nexus even charges faster on the 2amp - hope i don't blow it up!).
Fast charge from my understanding is just turning off the data connection when plugged into a computer. This allows for higher usb charge rates, it also helps certain wireless charging setups. I am coming from a gnex where this was the terminology, I assume it's similar. Fast charge shouldn't do much for you if you are having trouble with 2amp chargers, but maybe in this case Samsung limits through put when it doesn't recognize the charging unit? If fast charge tweaks somehow disable this, then I guess it's possible you would enjoy increase in charge rate though I have no verification on that.
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Well, I have to discount my own theory. I have some off-brand adapter and cable to charge in my car that works great.
I sure would like to know what's going on with the chargers in my house.
kdo23 said:
Fast charge from my understanding is just turning off the data connection when plugged into a computer. This allows for higher usb charge rates, it also helps certain wireless charging setups. I am coming from a gnex where this was the terminology, I assume it's similar. Fast charge shouldn't do much for you if you are having trouble with 2amp chargers, but maybe in this case Samsung limits through put when it doesn't recognize the charging unit? If fast charge tweaks somehow disable this, then I guess it's possible you would enjoy increase in charge rate though I have no verification on that.
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There's a problem with semantics going on. Fast charge is exactly what you're used to it being on the GN. What's being referenced here is quick charge, a feature of later Snapdragon SoC's.
Sent from my Nexus 7 using Tapatalk HD
fast charging is rapid charge where near full power is transferred. in the gn2, gnote 10.1, gnex, and gtab10.1 the max i got was ~1600mA with all my 2.1A chargers including the samsung charger. the rapid charge continues to 90% and then switches to trickle - anywhere from 400-900mA til 100%. without the adapter you're stuck at trickle, even at under 90%. some chargers seem to have it built in to rapid charge,but most don't.
i've never gotten a full 2100mA from any charger yet.
you can find schematics on how to build your own adapter in one of these samsung boards. i think there was a very detailed one in the gnote10.1 forum.
Hello,
Lately I've been having a weird issue with charging my I9300 device:
When I charge the device using the charger (which is original, by Samsung) , sometimes it takes a huge amount of time to charge, and if I also use the device (even for simple things) it actually drains the battery instead of charging it.
I've installed "Galaxy charging current" app, which also shows weird results:
When I have this issue, the average/maximum value is about 400mA or even 100mA , but when I disconnect the USB from the device and reconnect it, the values can change to 900 or 999 or even a bit higher.
My device is running on CM rom version "11-20140612-NIGHTLY-i9300" .
I'm not sure if it's related to the rom , the kernel or something about the hardware.
I've checked the battery status by going to a hidden (?) setting (using my app btw) of "Testing"->"Battery information", and saw that for "battery health", it says "Good". Attached a screenshot of what I see.
Can anyone please help?
Also, is there maybe an app that can warn me when the device is being charged yet it has the battery being drained? Or maybe give me an estimated time till the battery will finish being charged? I also hope that such an app won't drain the battery by itself...
This behaviour is caused due to the inbuilt charging protection mechanisms.
Its usually the cable. Samsung one is known to be crappy. Get a proper one and try.
If you are still experiencing issues plug it in to a different port. Front panel USB ports are sometimes too weak to supply high currents
Sent from my GT-I9300 using XDA Free mobile app
nkirk said:
This behaviour is caused due to the inbuilt charging protection mechanisms.
Its usually the cable. Samsung one is known to be crappy. Get a proper one and try.
If you are still experiencing issues plug it in to a different port. Front panel USB ports are sometimes too weak to supply high currents
Sent from my GT-I9300 using XDA Free mobile app
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Is it possible it's just the cable and not the charger?
I thought that cables are "stupid" .
EDIT: that's weird.
I tried 2 other cables: an old one of LG, and a new one of Chromecast. Both showed about 460mA in the app, no matter how many times I re-connected the device to them.
I've also tried to connect the Samsung's USB to the computer's front USB, and it gave me 400mA, but I think this is more expected.
Do you think that using a different new USB cable will solve it? or maybe it's the charger?
EDIT: just tried a new Samsung USB, and it seems to work just fine.
I didn't know USB cables are so different.
i olso had problem with charging..stock charger ...slow charging and battery drain on charge ....it was a problem with wall charge unit ...i used other phone's charger but max on that was 700 mAh and phone charged normaly.(but slowly)..now again my stock charger is working again plus i have 2m cable aftermarket ....can that be a softvare issue...if unit isn't good than it souldn't charge now normaly