Hi all,
This is my first post here so please excuse me if I break any rule.
I have recently installed Cleanrom on my SGT 10.1 Wifi only. It runs really smooth but now whenever I connect my tab to my computer, it automatically charges the battery. I don't like that because I like to do a full re-charge when battery level is very low.
When I connect to my comp, I just want to transfer files, not re-charge because I figure too many re-charge cycles is not good for the battery. I could be totally wrong though.
So the questions are : is USB charging good for the battery? Can I somehow stop USB charging?
Any help is much appreciated. Thank you.
Hi, just want to share my experience for your first question...
Many forums on the internet say that USB charging is fine for the Galaxy Tab 10.1, and some users even recommend it because it charges slower than charging through the wall adapter.
However, I've found that while I charge via USB, my tab gets noticeably hotter than via the wall adapter. The part that gets hot is just to the left of the front facing camera when looking at the tab upright in landscape. It doesn't get crazy hot or anything, but it's definitely hotter than via wall adapter.
I tested it by leaving it to charge while the tab is off for 1 hour before touching the area that gets hot.
Maybe someone can perform this test to confirm/deny. Is this extra heat bad for my tab?
The supplied charger is also USB style (without the data connection), but outside the specs, so the differences are minimal.
Related
Hello there,
I bought Samsung's MHL to HDMI Adapter (http://www.amazon.com/Samsung-MHL-HDMI-Adapter-Packaging/dp/B005LGUDKK/ref=pd_cp_cps_1) for my at&t SGS2, video and audio worked on my HDTV without hassle, but it did not actually charge phone's battery. when it was hooked up it kept 'rising bar' on battery icon in notification area and I was under impression it's truly charging as well playing the video on my TV, but it showed 30% batter warning that's when I realized it's not charging but faking to show charging!
Is is normal or abnormal, but I read in wiki or somewhere when it's hooked on MHL to HDMI Adapter/dongle SSGS2's designed to charge the battery as well, I need to your help to determine if I have a faulty one or I should turn on/off anything on phone!
Thanks in advance!
It will only charge your phone if the TV is a MHL compliant TV. I don't think any TVs on the market are compliant yet.
There should be a spot on the adapter to plug your charger into. That is the solution for non-compliant TVs. Did you plug your charger into the adapter?
Sent from my Galaxy S II (i777)
Thanks quarlow for quick reply. Yes I indeed plugged the charger into Adapter in order for it to work, that worked flawlessly, but the question is why the battery icon on my phone was showing 'charging bar' while it was not actually charging, that's mysterious.
My TV may be not MHL complaint as it's 2 yrs old already, but MHL complaint TV's don't need the MHL adapter be powered by external chargers, if I am right.
Thanks!
I too have an MHL adapter but it isn't the official "Samsung" one, but it will charge the phone overnight, but I've never left the device plugged into a tv and the adapter for an extended period of time.
I imagine that the adapter needs to draw power to send an image out to the TV, and the phone simply assumes that a charger is plugged in but rather than actually getting a charge the power is being diverted into the MHL adapter, and maybe a little bit is going to the phone but not enough to offset the drain of displaying an image on an HDTV.
I'll give it a test drive tonight and see if I get any different results, but I bet I have the same result.
TXFLGO05 said:
I too have an MHL adapter but it isn't the official "Samsung" one, but it will charge the phone overnight, but I've never left the device plugged into a tv and the adapter for an extended period of time.
I imagine that the adapter needs to draw power to send an image out to the TV, and the phone simply assumes that a charger is plugged in but rather than actually getting a charge the power is being diverted into the MHL adapter, and maybe a little bit is going to the phone but not enough to offset the drain of displaying an image on an HDTV.
I'll give it a test drive tonight and see if I get any different results, but I bet I have the same result.
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Click to collapse
Much appreciated !
From what I can tell the stock charger is only 700MA and will charge the phone slowly when not in use, however if it is inuse I am sure it will only be able to keep up with the power used.
I use an HTC charger most of the time it is a 1000MA charger and seems to be a bit faster. I have not tried this with the MHL connector tho.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
xisruno said:
From what I can tell the stock charger is only 700MA and will charge the phone slowly when not in use, however if it is inuse I am sure it will only be able to keep up with the power used.
I use an HTC charger most of the time it is a 1000MA charger and seems to be a bit faster. I have not tried this with the MHL connector tho.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
I believe this is your answer as well. I did not have the opportunity to test drive the MHL adapter last night, but what I would suggest is turning off whatever you aren't using while streaming. Check out the link below, and the last review for a similar problem from another MHL adapter, although MHL allows charging I imagine if you read the spec on it (the tech spec), it probably only supports 500 mAh max. Although it costs $100 to read the draft spec (which is stupid).
I will find out if I experience the same drain as well but I imagine what is happening is the Wifi/Data connection is draining faster than the charge is going into the battery, which is probably why standard use doesn't cause a problem. However streaming coupled with whatever else is going on is probably the culprit. So I'd suggest if you are going to stream anything while connected to disable non essential services (Sync, other data connections, bluetooth) and clear RAM so only what you want is actually running.
http://www.monoprice.com/products/p..._id=1083314&p_id=8675&seq=1&format=4#feedback
TXFLGO05 said:
I believe this is your answer as well. I did not have the opportunity to test drive the MHL adapter last night, but what I would suggest is turning off whatever you aren't using while streaming. Check out the link below, and the last review for a similar problem from another MHL adapter, although MHL allows charging I imagine if you read the spec on it (the tech spec), it probably only supports 500 mAh max. Although it costs $100 to read the draft spec (which is stupid).
I will find out if I experience the same drain as well but I imagine what is happening is the Wifi/Data connection is draining faster than the charge is going into the battery, which is probably why standard use doesn't cause a problem. However streaming coupled with whatever else is going on is probably the culprit. So I'd suggest if you are going to stream anything while connected to disable non essential services (Sync, other data connections, bluetooth) and clear RAM so only what you want is actually running.
http://www.monoprice.com/products/p..._id=1083314&p_id=8675&seq=1&format=4#feedback
Click to expand...
Click to collapse
So you mean if phone is hooked up with MHL adapter while it's not actually streaming , the battery percentage should go up (meaning charging) like 8% ->to 9% -> 10% ? I can try this.
I know the MHL adapter will charge your phone if you aren't streaming, I had mine plugged in sent text message, watched a video clip I shot, looked through pictures, and left it plugged in. I also used to charge my phone via the MHL adapter (charger into MHL into phone) regularly but the charger kept popping out of my adapter if I checked my phone.
I'll look into it more this weekend and get back with you about it.
Can confirm this is indeed a problem. Would recommend under clocking the processor
Until it's unbearable and try again.
My processor is oc'd on demand but it drained it really fast. Probably a glitch in their version of GB.
Sorry I don't have better news!
Sent from my SAMSUNG-SGH-I777 using XDA App
Thanks Guys!
I did kinda experiment, MHL adapter is indeed charging the battery while streaming, but battery drains faster than being charged, this is the outcome.
1. I plugged the phone while it's not streaming ..battery percentage increased from 78 ->79->80% and so on.
2. I took the phone off the MHL adapter and played the same video (flash based) it drained 10% of battery in 20 minutes.
3. I hooked the MHL adapter/charger and streamed the same video (flash based) it drained 5% of battery in 20 minutes.
I would like to conclude, MHL adapter charged the battery, but flash based video streaming drained the battery faster than the rate in which the battery was being charged.
So my DNA has a charging problem. Figured I'd get a pretty good solution to my problem by posting it here. I've owned my phone for a little over 2 months without any major issues until last week. My phone charges sooo slow via the original htc usb wall charger and various other chargers I have laying around the house! It's really getting annoying as I seriously need my phone 24/7. I installed a few apps that may have caused this. They are the moga universal driver, moga pivot, tango, Skype, and aDownloader. I have since unistalled these apps to no avail. I'm unrooted on stock rom. Phone charges at about %10 every hour and a half. I'm trying to find a solution without having to root or restore my phone. I have the nokia wireless charger but I still find it too slow to use on a regular basis. Use that at night or on days off from work.
I love this phone but if I can't find a good fix I'm thinking of replacing or selling it for the razr maxx hd. I know.. I know.. But I need a phone that charges properly/last long
Sent from my DNA
10% / hour is not an acceptable charge rate. Mine charges much faster than this.
If you are charging via the USB cable, make sure to use the wall adapter instead of plugging it into the PC and check the results. Charging via the wall is usually much faster than by using a PC's USB port.
You can do a nandroid backup of the entire ROM and then install stock to see if the ROM is the problem as well.
If you try those things and it still charges that slowly, then there is something wrong with your phone.
This is not the first thread where I heard about charging issues with people who use the nokia wireless charger. Did you have this problem when you first got the phone?
Wireless charging is the slowest method, so expect it to be slower than by PC or wall cable. The LG wireless pad says about 4~ hours for a full charge (which is still much faster than 10%/hour)...
Donno if its the regular case of 'bad usb port'. It's happening only when I'm charging with specific car charger (1A, output 5V) sometimes its charging fine, sometimes I notice its stop charge and the icon of battery is blinking/flashing...
I've tried to clean the usb cable and port from dust, maybe the cable got some dust into it?
Also I've notice that the temperature of device goes down to 22°C when its happening...
At any other chargers (include othe car chargers and other wall chargers) there is no problem at all...
What could be the reason of this specific car charger (it used to work without any problem the last few months ago)?
High/Low voltage? Dust?
maybe other problem with my device? (Battery/something else)
BTW - when I plug the charger out when its happening its stop blinking.
could you please give us a screenshot?
Do the blow thing
Sent from the little guy
From reading your post, it only happens with that one charger....any other charger works as expected?
That being the case.....it ain't your phone or the USB port/board in the phone.....
Chargers DO fail, and from my experience, dc to dc step down transformers and circuitry (the type in your car charger) have a higher failure rate than their ac to dc (mains) equivalents. ....
Time to buy a new car charger methinks
Sent from my Rooted, De bloated Stock JB powered S2 via PhilZ kernel and Tapatalk 2....
@wishmas7er - which screenshot mate? when its happens all I see is blinking/flashing battery icon, without any other message or something else about it.
@keithross39 - correctly mate, all other charger (any kind of them) works just fine.
Yeah seems like its the car charger problem, just first time i've notice it...
Thanks!
BTW - the reason of 'bad touch' while charging with some generic chargers is because higher amperage then should be to this device's battery? or other reason?
As long as the amperage is not ludicrously high or low, the only noticeable difference would be the charge time.....other than that there should be no noticable effect....
Sent from my Rooted, De bloated Stock JB powered S2 via PhilZ kernel and Tapatalk 2....
Battery Icon Flashing with Samsung Galaxy S4 Car Charger
I had the same problem charging my Galaxy S4 in the car. AC charging works fine but when plugged into the DC car charger the battery indicator icon flashed rather than showing the lightning bolt.
I purchased a higher voltage DC charger adapter, same symptom.
Finally I swapped out the USB-to-micro cable and now it works fine. I suspect that in the car the phone gets jarred over time and it wears down the micro-USB connector.
It's not just you fella........
The micro USB socket idea is (imo) a pathetically fragile arrangement for what the manufacturers intend it to do. I've repaired two phones with worn out sockets, and judging by what I am reading on XDA, it is an issue that is getting more and more common.........
Sent from my rooted debloated thingy
So I'm experiencing the same blinking problem with my note 4. Each time the lightning icon blinks the phone vibrates in sync with it. And ithe galena with all charges. I have to keep unplugging and replugging ...and OCCASIONALLY it charges. I don't know what's the problem
Kideinstein33 said:
So I'm experiencing the same blinking problem with my note 4. Each time the lightning icon blinks the phone vibrates in sync with it. And ithe galena with all charges. I have to keep unplugging and replugging ...and OCCASIONALLY it charges. I don't know what's the problem
Click to expand...
Click to collapse
I have same problem with my nexus 4.
After some googling I came across an app called Ampere.
This app tells you how much rate of current your battery is charging at.
So what i found is that when phone gets old the battery doesnt hold up charge as before. So the charge rate becomes slow. The nexus charger is rated at 1Amp and at the time of charging is able to provide low current than the rate at which the battery is draining. So the Android gets confused between charging and discharging.
For eg: if phone is charging at 300mA and draining at 350mA.
Also the battery draining rate is constantly changing. So when its greater than charging rate phone shows discharging and if less : charging...
Fix: There are three fixes which i can think ...
1) Get a higher Amp rated charger...
2) while charging close most of apps , dont play games , switch to a lower gen network like 2g , close wifi , close data which will reduce the discharge rate of the battery.
3) Get a new battery.
So I'm experiencing the almost the same blinking problem with my note 4. Each time the lightning icon blinks the phone vibrates in sync with it. It won't come on it won't reboot I've tried everything BUT replace the battery because if I plug it up it'll vibrate and blink but nothing else works. It's completely black when it's unplugged.
Hello XDA,
I'm not sure how this happened, but for the past couple of months I haven't been able to charge my phone while it is turned on. It shows the charging animation but the battery still drains, even with all radios off and screen off. I can leave it charging all night and end up with a nearly flat battery. Plugging it in to any wall socket seems to only slow the draining, and plugging it in to a fully powered USB socket (many tried) keeps it at the same battery level, or very slowly charges it if I don't use it. If I turn it off however, I can charge it until full in the normal time with the original AC charger.
Here's the really strange part: I've tried several new chargers of different brands including samsung and it makes no difference. Not only that, but they won't charge it when powered off either making them completely ineffective. It doesn't initialize the charge properly - the screen either shows a battery with a progress circle over and over again without getting to the charging animation, or displays the charging animation over and over and never charges at all, but nevertheless gets hot.
The chargers I've tried are:
Cygnet for samsung phones including SGS-II
Belkin for Samsung phones including SGS-II
Premium blackberry travel charger
Premium 10W 2A Samsung travel adaptor
One charger that did seem to work while plugged in was from a new Sony Xperia Windows phone charger I borrowed once.
I've exchanged at the store 3 times now with the same result! It must be something wrong with the hardware or software...
I've calibrated the battery, I've had a new battery for a couple of months and normally still lasts all day and more on a full charge. It is a 3rd party high quality Anker battery. The problem is the battery is getting a lot more taxed now that I'm using 3G over the portable hotspot, so its not quite lasting the day anymore.
I've had countless custom ROMs on there now, current ROM is CyanogenMod 10.1 stable. Would returning to stock then reinstalling help?
Something that shouldn't matter is I've moved from the UK to Australia. I'm still using the English charger as its the only one that works. And the Xperia charger that seemed to work was Australian too.
Before it got this bad I think it was getting slower and slower to charge. I had to replace the old USB cable that eventually got really loose, then broke and i've tried several new ones with no improvement in charging ability. Is it possible that the contacts inside the micro-USB socket might have been bent from the old cable moving around so much so that only minimal contact is achieved with any other cable? The new connectors do seem to fit perfectly.
In the attached screenshot, you will see on the left the AC charger is plugged in while battery level goes down, then on the far right its plugged in to a computer and is kept level.
Any suggestions would be greatly appreciated!!
sevenlions said:
Hello XDA,
I'm not sure how this happened, but for the past couple of months I haven't been able to charge my phone while it is turned on. It shows the charging animation but the battery still drains, even with all radios off and screen off. I can leave it charging all night and end up with a nearly flat battery. Plugging it in to any wall socket seems to only slow the draining, and plugging it in to a fully powered USB socket (many tried) keeps it at the same battery level, or very slowly charges it if I don't use it. If I turn it off however, I can charge it until full in the normal time with the original AC charger.
Here's the really strange part: I've tried several new chargers of different brands including samsung and it makes no difference. Not only that, but they won't charge it when powered off either making them completely ineffective. It doesn't initialize the charge properly - the screen either shows a battery with a progress circle over and over again without getting to the charging animation, or displays the charging animation over and over and never charges at all, but nevertheless gets hot.
The chargers I've tried are:
Cygnet for samsung phones including SGS-II
Belkin for Samsung phones including SGS-II
Premium blackberry travel charger
Premium 10W 2A Samsung travel adaptor
One charger that did seem to work while plugged in was from a new Sony Xperia Windows phone charger I borrowed once.
I've exchanged at the store 3 times now with the same result! It must be something wrong with the hardware or software...
I've calibrated the battery, I've had a new battery for a couple of months and normally still lasts all day and more on a full charge. It is a 3rd party high quality Anker battery. The problem is the battery is getting a lot more taxed now that I'm using 3G over the portable hotspot, so its not quite lasting the day anymore.
I've had countless custom ROMs on there now, current ROM is CyanogenMod 10.1 stable. Would returning to stock then reinstalling help?
Something that shouldn't matter is I've moved from the UK to Australia. I'm still using the English charger as its the only one that works. And the Xperia charger that seemed to work was Australian too.
Before it got this bad I think it was getting slower and slower to charge. I had to replace the old USB cable that eventually got really loose, then broke and i've tried several new ones with no improvement in charging ability. Is it possible that the contacts inside the micro-USB socket might have been bent from the old cable moving around so much so that only minimal contact is achieved with any other cable? The new connectors do seem to fit perfectly.
In the attached screenshot, you will see on the left the AC charger is plugged in while battery level goes down, then on the far right its plugged in to a computer and is kept level.
Any suggestions would be greatly appreciated!!
Click to expand...
Click to collapse
IMO, u should revert back to a stock samsung Firmware (pertained to ur region) and then see if the issue persists or not to rule out any possible 'Software issue' in the first place
Thank you, I will try that and report back the results.
You can try hawkerpauls nuke if flashing stock doesn't work: http://forum.xda-developers.com/showthread.php?t=2100558
Hello all, I have a galaxy s3 I9300, the problem is the charging takes forever to charge ... I tried AC and from laptop. I changed the battery to my other I9305 , and the charging went really fast so it's not a battery problem.
If it's the charging port , can it be fixed ?
Mabye the problem is the cable; try another USB cable to see if there are some difference.
If not mabye yeah, is the charging port.
Try to hard reset
I had the same problem and after multiple headaches, I finally found the answer.
Check all these things out:
- Some background application or service might be draining your battery and thus not letting it charge properly. Go into battery settings and check if everything is normal or there's something disturbing in there.
- Your micro-usb plug has dirt in it. If you can't see anything from the outside, and you're not going to mess anything up, I'd recommend to dissable the phone and have a closer look.
- The most common and most likely problem to be going around is that your cable or power adaptor isn't working as it should. If you are using the stock SIII charger, it has a well known problem and doesn't provide the 1000mAh it should - I have two and both of them give an output of ~100mAh. To check this out, download an app called "Galaxy charging current" (I think you must have root access on your phone for the app to access the charging data). If it's not getting 1000mAh, try changing the cable or the power adaptor.
I hope this helps!