Charging Issues - Eee Pad Transformer General

So I'm having some issues charging my tablet. I plugged it in to the charger last night and I noticed this morning that it actually had less battery than last night. So I ran some "tests" and this is what I have concluded. The part of the charger that I actually plug in to the wall doesn't work for some reason. I get no indication from the dock, the battery icon, or the battery widget that I have up. Other plugs seem to work but they don't actually charge the tablet. As in, the battery indicator in the status bar shows a charging icon but the widget still shows that it's not actually charging and its still losing battery. Plugging the charger directly into the tablet instead of my dock does nothing.
If if I have to get to get my tablet sent in, should I just sell my dock and get a Nexus 7? The touchscreen to my tablet doesn't work anyways.
Sent from my Transformer TF101 using Tapatalk 2

dredhead4
You may have tripped the heat sensor inside the wall wart. Put the wall charger in a plastic sandwich bag, push the air out and seal the bag. Put the bag and wall charger in the freezer for about 30 to 45 min. Remove and leave in plastic bag until charger is back to room temp. Now try it. If you have tripped the heat sensor this action will reset it. There are several threads that discuss this. The wall chargers for the TF101 are heat sensitive.
Hope this helps.
hshoem1

I have tried other wall chargers and they didn't work either so I think the problem is in the tablet, not the charger.
Sent from my Galaxy Nexus using Tapatalk 2

When you plug the tablet into your computer what does the tablet say it is doing? It would take forever to charge but it might show it is charging.
Remember the 101 can charge off of 5volts or 11-15volts. It is the time it takes to recharge that makes a big difference.
hshoem1

Related

Samsung Epic battery won't charge!!

When I got my Epic the battery was at 50% like expected. I immediately plugged it in when I got home and it seemed like it was charging because the charging light was on and the battery indicator was showing charge.
About 1 hour later I had to leave for class and I unplugged my epic. It stated it was 15% battery left and gave me the sad low battery notification.
I plugged my epic into the wall at school and let it charge a good 2 hours. Throughout the charge the battery would NOT GO ABOVE 15%. I finally unplugged it a few minutes ago, and STILL the battery is at 15%.
Is there any way to reset the battery stats or is this a faulty unit?? I called my radioshack nd they stated they can do a phone swap for me BUT THEY DON'T KNOW WHEN THEY WILL GET MORE EPICS IN. WTF. I obviously can't use a phone that won't charge..... I saw a similar problem on androidcentral forums, where someones epic wouldn't charge over 80%.
My radioshack lady said to take out the battery and reset the phone. I've done this 3 or 4 times and still the battery registers 15%.
Sent from my SPH-D700 using XDA App
I'm having the exact same problem except my phone always thinks the battery is at 0%. Even when plugged in to charge, the phone will still occasionally die. It's very likely that I'm just making some silly mistake though, as the Epic is my first Android phone.
I had on USB debugging but I don't think that should affect charging through usb. I don know what's wrong with the charging port or the battery. But its definately going DOWN. Now its blinking at 0% with no way to charge it.
I'm wondering if I let the battery die and try to charge it to see if it will fix the battery.....
Sent from my SPH-D700 using XDA App
Same issues until i plugged it into a wallcharger.. now im good
meaning a non usb charger
I have tried the usb wall charger that came with the phone, and also a generic microusb charger. Both light up the notification charging light, and then the battery shows the charging..... still won't go above 15%.
Argh!
Sent from my SPH-D700 using XDA App
easy fix guys....
be sure to use the original charger and usb cable.
plug in the charger to the wall, then plug the usb into the charger, then plug the phone into the usb....
follow these steps exactly and it should start charging......
(in the future, dont let your phone completely die)
PS: this issue affects ALL epics when they die completely so dont bother taking your phone into sprint. they will not replace it because the replacement would do the same. (2.2 should fix this..... its only a couple weeks away)
hope that helps!! ENJOY YOUR EPIC!!!
jbarajasp said:
easy fix guys....
be sure to use the original charger and usb cable.
plug in the charger to the wall, then plug the usb into the charger, then plug the phone into the usb....
follow these steps exactly and it should start charging......
(in the future, dont let your phone completely die)
PS: this issue affects ALL epics when they die completely so dont bother taking your phone into sprint. they will not replace it because the replacement would do the same. (2.2 should fix this..... its only a couple weeks away)
hope that helps!! ENJOY YOUR EPIC!!!
Click to expand...
Click to collapse
I have tried this, charger into wall, then cable into charger, then usb into phone.
Still phone will not charge.
If I unplugg the charger, it says the battery is empty.
Sent from my SPH-D700 using XDA App
aww man that sucks, maybe the battery is defective? u should try going to the sprint corporate store that does repairs. they should be able to test the battery and if its defective give u a new one.Its still under warranty, and if u have TEP it definitely is covered.
My Epic was experiencing the same issue. When I first got it today, it was gradually charging fine via my new Thinkpad's USB port. But then for some reason, "Battery Indicator" showed the charge going down, even though the red LED and the battery icon indicated that the phone was being charged. So did my lock-pattern screen. I called my local store for a replacement.
The phone wouldn't charge while I had the rubberized phone cover on, bought from the Sprint store. Also, the phone felt very warm, so I took the cover off, opened the battery cover to see how hot the battery was. It didn't feel too hot to the touch. I removed the battery, put it back in, powered the phone back on, and saw a huge green battery charge icon, but alternating with an icon with what I think was a yellow warning sign, and a thermometer on it. So I left the Sprint rubberized phone cover off, and recycled the power on the phone.
After the phone fully loaded up, I tried USB-charging the phone. Now, it's gradually charging up (was down to 14%, now back up to 19%). The phone feels cooler, too.
I'm leaving the replacement option on the table in case my phone turns for the worst. I rely on the phone for work and business so can't be without a phone. Maybe I should reconsider getting a land-line or VOIP service again. But maybe, this being a brand-new phone, the battery needs to be cycled a few times before it stops acting unusually. I'll try the wall charger before I head to bed tonight, and see what happens tomorrow.
Here is my findings after putzing with it all day. I was using two chargers. Both griffin's. One was cigarette plug to usb with an output capacity of 1 amp. I also have a wall one that has a usb port and is meant for an ipad. They need lots of current to charge them and this one is capable of 3 amps.
Using the evo, both could charge it and run the phone at the same time. The battery percentage would always increase. With both of these chargers on the epic, even though the charge light would be red, if I was using the phone, it was not charging and it was pulling off the battery to run the phone.
This should not act like this. I have read that these screens are supposed to be more power efficient, but I don't notice that. I do not know if the power regulator in the phone is wimpy or not but I noticed that when I played something loud through the speaker, the screen backlighting would dim when the sounds peaked. Come on! An amp and a half battery in this phone should be able to handle that.
Here are some more observations. About three hours before I was to go home, I would either put the phone on the griffin wall charger when I was inside or I would put it on the griffin 12v adapter when I was in the car. Finally around 45 minutes before quitting time, the charging led went blue. I was mostly charging the last hour with the phone off. I turned it on but kept it plugged in. By the time the home screen came up and everything settled down, the battery would be at 95%. I was like wtf. I left it on until it charged up and the light went blue. The battery was at 96% at full charge.
I kept hitting it with the charger. Unplug it for a few seconds then plug it back in. I repeated this many times. I would also charge until blue then turn off and let charge until blue. I would follow that cycle for awhile.
Lastly, I left it turned on and charging but would unplug it for a few seconds then plug back in. The maximum % would inch higher and higher. I got it up to 98%. Then I noticed that when the screen came on to tell me it was fully charged, it was at 100 for maybe a second or two then it would drop to 98. I suspect the screen was causing the drop. All the time I have been typing this, I have gone from 98 to 90 while on wifi, screen minimum brightness and using hardware keyboard.
This was my battery and charging findings for today. Add this to the theories out there flying around.
I find that completely unacceptable if the phone can't charge if being in use....
I plugged it in the way mentioned earlier for about 30 minutes while I was waiting on a friend. The charge went up to 15% but 15% isn't gonna last me longer than a hour of use which isn't usable.
It stil won't go above 15%.... I'm gonna leave it alone for a hour and see if it will charge, but a phone that can't charge isn't of use to me.
And judging from what everyone says its not even a hardware error, if there are many people with the problem.....
Sent from my SPH-D700 using XDA App
is this a defect, or is this only isolated to some phones?
herbthehammer said:
Using the evo, both could charge it and run the phone at the same time. The battery percentage would always increase. With both of these chargers on the epic, even though the charge light would be red, if I was using the phone, it was not charging and it was pulling off the battery to run the phone.
Click to expand...
Click to collapse
Ive been testing finding battery charge of 2% every 10 min while connected to desktop charger Telanav enabled so somethings definitely wrong with your device.
I would take back asap swap for new
So I just got home and plugged my Epic in yet again. After about 30 minutes of charging my battery is at 20%.
Still way slow but the battery has gone above the 15% sliver of battery.....
I'm thinking its because the battery has to be conditioned... I'm gonna charge it for a day to see if the battery performance changes...
Sent from my SPH-D700 using XDA App
I'm gonna try turning off the phone while it's charging at night and see what happens. Or I could try the htc evo battery conditioning suggestion.
Full 8 hour charge on. Disconnect charger and turn off phone. Charge off for an hour. Turn on and wait a couple minutes then turn off and charge for a hour. I think maybe charging the crap out of it might condition the battery some.
Maybe kinda like filling your gas tank up until the lever pops. Then slowly keep filling until it pops again. Then push the rear of the car up and down and side to side to try and get the tank to burp out any air pockets. Then slowly top it off until it barely overflows the filler pipe. I know, stupid mental picture!
The only questionable thing I have is, after a "full charge" should I run the phone until it shuts off then give it another FULL charge? Some say yes, some say no. Each have their theories.
I noticed that the "Where" application was sucking down a tremendous amount of juice. There are multiple similar complaints for it in the Market. Uninstalled it, and now the phone is charging gradually and steadily.
@ 9:57PM, battery life = 36%. Now @ 10:25PM, battery life = 48%. I'm cautiously optimistic.
With Where installed, "Battery Indicator" displayed a voltage of <3V. After removing it, voltage is now a hair < 4V (3.945V is the latest refreshed value).
I will be following herb's suggestions for conditioning by maxing the battery out tonight. I think I'll run the phone down to 0% tomorrow, once it's fully charged to the hilt.
Even so, I still intend to exchanging this unit out because I'm also experiencing issues with the Back soft-button.
Considering encasing it in that Sprint rubberized casing tomorrow to see if it affects the battery life.
My Epic has no problems except for the battery being slow to charge, but i charged it to 80ish in about 2 hours.
If anything, I will try to switch it for a new battery.
I just thought of something that may be nothing. Did anyone, like myself, update google maps to 4.4.0? I am going to try something and see if it helps.
In battery use details, in the about phone under menu, what is your highest battery consumption? My display is pegged all the way and it is at 70%. The next closest is cell standy 14. Then browser is 9, system is 4, idle is 2 and os is 2. I'm going to remove the maps update. I read somewhere that some people suspected the update to eat battery.
I haven't updated the maps app. The screen and standby are the highest ive seen on power usage.
My radioshack wont have any more Epics in until Friday or later.... I'm gonna try to power cycle the battery (if I can leave it off for that long. )

Observation: Overheating AC Adapters

I like many people was having issues where the AC adapter would randomly stop charging my tablet. Someones it would start working again soon after and sometimes almost an entire day would go by before it started working again.
Tried the freezer trick with no results. Was going to send it back to Asus when I noticed 2 things.
1. The adapter was very not every time it stopped charging.. hotter than it usually gets when functioning correctly.
2. It only ever stops charging when i'm using a usb 3.0 extension cable.
To test this i stopped using the extension able for about 2 weeks and the adapter functioned properly the entire time. Then last night I reconnected the extension cable and within 5 minutes of of being plugged in charging stopped and the adapter was extremely hot. This obviously leads me to believe that the extension cable is in some way effecting the adapters voltage or something and causing it to malfunction. So I'm curious as to how many of the others who having issues are also using extension cables.
Not the voltage the current the more current it has to push the hotter its going to get and the chargers for these are not designed for extensions they where designed to be small and charge the tf even then there at there limit
Sent from my tf101 using xda premium 1.54Ghz
I also was having trouble with over heating and have been using an 3.0 extension cable. I will stop using it and report back.
hshoem1
its a design flaw with the ac addapters and its one of the reasons that the cable that ships with the transformer is so short
I was just using the cable as is with no extension and it died on my twice. I now have it rigged up to charge from my PC's PSU and only use the adapter when I'm not at my house.
My charger melted my damn usb cable. Thats how hot it got..
I wasnt using the extension cable at the time.
The adaptor would always warm up, which i read was normal. A few days ago, however, i felt some heat on the cable itself.When i reached to the connector, i noticed it had literally melted the rubber casing off the wire.
Im in the process of sending it back today
Just had my second charger die on me! I was charging my Dock and Tablet during class from 2:50-4:10 and when I unplugged it the charger was pretty hot. I went back home and connected the TF to my rigged up PSU charger and then went to class at 6:10 and plugged in the charger and unsurprisingly it wouldn't charge!
Sent from my Transformer TF101 using xda premium
Ive heard reports of people solving these problems by swapping round the mains pins ( I guess only in countries that use 2 pin outlets, UK have 3 )
I am sure this will sound nuts but, put the wall charger in a plastic bag and put it in the freezer for a few hours. Please do not forget the plastic bag. There is a thermal heat fuse inside the brick that needs to be reset. If it is still working the cold will make it reconnect and bring the brick back to working order.
You should make a DIY charger by following "DevCake" thread on DIY AC and DC chargers for the TF.
Hope this helps.
hshoem1
I just do not understand why we would have to go out of our way for their crappy idea of a charger. I understand the idea of not allowing aftermarket chargers because they want the money for the chargers but i mean if you do that then at least make something worth having besides giving us a heater...does this remind anyone of the rrod( red ring of death) for the xbox... to much of a hurry to send out their product they didnt really test EVERY aspect of their device...this makes me sad..and then need to send it back and what not taking up more of our time then not being able to use the tablet because your chargers going back... i wish customer service was better....that is all
just a quick pop here.
but i have found that if you charge the dock and tab separately there are no problems with the adapter. and besides charging while the tab is docked into the keyboard is kinda a waste as its charging the keyboard dock, and at the same time its discharging and trying to charge the tab at the same time. hence causing the strain on the adapter.
besides charging both at once will just kill the keyboard dock in the long run
regP said:
I like many people was having issues where the AC adapter would randomly stop charging my tablet. Someones it would start working again soon after and sometimes almost an entire day would go by before it started working again.
Tried the freezer trick with no results. Was going to send it back to Asus when I noticed 2 things.
1. The adapter was very not every time it stopped charging.. hotter than it usually gets when functioning correctly.
2. It only ever stops charging when i'm using a usb 3.0 extension cable.
To test this i stopped using the extension able for about 2 weeks and the adapter functioned properly the entire time. Then last night I reconnected the extension cable and within 5 minutes of of being plugged in charging stopped and the adapter was extremely hot. This obviously leads me to believe that the extension cable is in some way effecting the adapters voltage or something and causing it to malfunction. So I'm curious as to how many of the others who having issues are also using extension cables.
Click to expand...
Click to collapse
Mine doesn't speed charge my Transformer even without the extension cable. Maybe I'll do some testing with that though and check the heat, since the damn thing doesn't work anymore anyways. Though I might not get any results because of that
---------- Post added at 01:47 AM ---------- Previous post was at 01:46 AM ----------
reaperzero said:
just a quick pop here.
but i have found that if you charge the dock and tab separately there are no problems with the adapter. and besides charging while the tab is docked into the keyboard is kinda a waste as its charging the keyboard dock, and at the same time its discharging and trying to charge the tab at the same time. hence causing the strain on the adapter.
besides charging both at once will just kill the keyboard dock in the long run
Click to expand...
Click to collapse
There are many problems with the charger, many different problems.
I barely use my dock, so I have only been charging my TF standalone. Still stopped working though late last week.
Hmmm, issues here as well...
Charger stopped working at times and then start working again... Now it's not working and sticks with that plan. Pluggin in the charger with the TF turned off makes it boot so something IS happening, it doesn't charge though.
Luckily I have another charger (no original asus but using another adapter + usb-cablethingie) so I can atleast charge it, but still. Was thinking of buying another asus adapter (the travelpack) but really doubting it now if it's a general issue.
Will try the freezer trick anyway and some other stuff... Quite annoying though (for an otherwise excellent product).
i thought the accessories that comes with the TF are all covered under a one year warranty?
and the problem with the adapters suddenly dying is probably the capacitors in the charger or the stepdown transformer in it anyone had a chance to open one yet?
reaperzero said:
just a quick pop here.
but i have found that if you charge the dock and tab separately there are no problems with the adapter.
Click to expand...
Click to collapse
An Asus UK tech support guy actually told me not to charge both the tablet and dock at the same time. Pretty poor if you ask me. They just went silent when I pushed the matter.
They have compromised the design in their desire to make a fashionably tiny charger.
dagrim1 said:
Hmmm, issues here as well...
Charger stopped working at times and then start working again... Now it's not working and sticks with that plan. Pluggin in the charger with the TF turned off makes it boot so something IS happening, it doesn't charge though.
Luckily I have another charger (no original asus but using another adapter + usb-cablethingie) so I can atleast charge it, but still. Was thinking of buying another asus adapter (the travelpack) but really doubting it now if it's a general issue.
Will try the freezer trick anyway and some other stuff... Quite annoying though (for an otherwise excellent product).
Click to expand...
Click to collapse
Actually it is charging, but not with the voltage it requires for the "quick charge". Mine does the same thing. If you turn off the screen or turn off the TF and leave it plugged in, it charges at ~3%/hour. Not very useful if you're a heavy user but better than nothing until you get a new charger.
I may be really lucky: the only time I've ever had a failure to charge, has been fixed by taking off the plug and snapping it back.
Sent from my Transformer TF101 using Tapatalk
tekkitan said:
Actually it is charging, but not with the voltage it requires for the "quick charge". Mine does the same thing. If you turn off the screen or turn off the TF and leave it plugged in, it charges at ~3%/hour. Not very useful if you're a heavy user but better than nothing until you get a new charger.
Click to expand...
Click to collapse
Now you mention this, it indeed does... slow but it does charge. Damnit, luckily I have another charger but this annoys the crap out of me.
dagrim1 said:
Now you mention this, it indeed does... slow but it does charge. Damnit, luckily I have another charger but this annoys the crap out of me.
Click to expand...
Click to collapse
Oh yeah me too
I'm going to get another charger tomorrow when I go pick up a joystick for Battlefield 3
Then I'll contact Asus I guess and get it RMA'ed. Going to try and get some free shipping out of them. Sometimes I am successful sometimes not haha
Spidey01 said:
I may be really lucky: the only time I've ever had a failure to charge, has been fixed by taking off the plug and snapping it back.
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
I get the same, snap off the plug convertor and back on again and back in business again!

[Q] Charging problems

So I went to plug in my phone using the stock charger and it would not charge. The charger would however charge other devices including my N7. I tried several different chargers and none would charge it. My N7 charger was here at work so I could not try that until now. Plug it in and instantly charging. Why would the N4 charger quit working on the phone but still charge other things.
Im so confused!
It probably has something to do with the terminals inside the connector. They must not be making a solid connection
the wall plug in part of the stock charger is junk. mine makes a loud ticking noise and gets really hot. i don't trust it, i use the stock charging wire with an old HTC plug in and its been problem free
Sent from my Nexus 4 using Tapatalk 2

[Q] Too little amps. Any damage?

Alright, so yesterday, I went to Five Below to buy another charger with a longer cable than the official charger, since it's so short.
The battery was nearly dead (about 10%). I had plugged it in, turned it off, and went to bed. I woke up and checked it, the battery was only about 3/4 full (about 65 - 75%). This confused me a bit, so I checked the specifications on both chargers.
The official charger puts out 2 amps. The 3rd party charger puts out 1000 milliamps (1 amp). The official charger puts out 5.0 volts, the 3rd party puts out 5.5.
My dad said that's why it was taking so long to charge and that it will not damage the tablet, but will do significant damage to the 3rd party charger/transformer.
But did/would it do any damage to the tablet? I'm kind of paranoid about everything, as this thing is brand new. It has an uneven screen, and I'm paranoid that the tight case I'm using with it (which only latches on one side) is making it worse, even though it probably isn't. That's not the point though.
The chip that controls the charging is here http://www.summitmicro.com/prod_select/summary/SMB347/SMB347.htm. You are not going to damage anything throwing 5.5V/1A at it.
peterk-1 said:
The chip that controls the charging is here http://www.summitmicro.com/prod_select/summary/SMB347/SMB347.htm. You are not going to damage anything throwing 5.5V/1A at it.
Click to expand...
Click to collapse
Ah, alright. Thanks for that link.
Your dad is right (always believe your dad, dads are always right). The device draws power from the charger, the charger does not force power into the device, so it's possible to damage the charger by drawing too much power from it making it overheat, but you are not going to do any harm to the N7. A 1A charger should charge the N7 but not as fast, it's probable that the one you bought is not really 1A, especially if it's a no-name Chinese thing.
You can just buy a longer usb cable for your Asus charger though.

XT1575 suddenly charges very slowly

Could my work on my XT1575 cause the phone to charge very slowly? As long as I was using a good QC3 charger and a QC3-certified micro USB cable my MXPE phone charged fast. I have TWO working XT1575s. When plugged into the same charger with the same USB cable they both showed "Turbocharging" and both charged quickly.
Last week I replaced the back of one of the phones. -- exchanging the original back with an ebony wooden back. I had problems getting the ebony back to stay completely adhered so I installed it, removed it, installed it again with better adhesive. looks fine now.
Now, the back is securely in place BUT THE PHONE WON'T CHARGE FAST ANYMORE. Could I have damaged something in the phone while doing all that heating during the back replacement? I use a heat gun, always on the low setting, but I for the last installation I moved the heat pretty slowly around the back to increase the heat and hopefully improve the adhesion.
Everything about the phone works perfectly, both hardware and software. When I plug in a charging cable is shows "Turbocharging" but the charge time estimated by the phone is 7 or 8 or even 9 hours. That's about how long it takes too. And the phone won't charge past about 90%.
I've already replaced the battery. I have no idea how to further diagnose the problem. Have I effectively destroyed my phone while putting on a prettier back (to summarize how stupid I'd feel)?
lesdense said:
Could my work on my XT1575 cause the phone to charge very slowly? As long as I was using a good QC3 charger and a QC3-certified micro USB cable my MXPE phone charged fast. I have TWO working XT1575s. When plugged into the same charger with the same USB cable they both showed "Turbocharging" and both charged quickly.
Last week I replaced the back of one of the phones. -- exchanging the original back with an ebony wooden back. I had problems getting the ebony back to stay completely adhered so I installed it, removed it, installed it again with better adhesive. looks fine now.
Now, the back is securely in place BUT THE PHONE WON'T CHARGE FAST ANYMORE. Could I have damaged something in the phone while doing all that heating during the back replacement? I use a heat gun, always on the low setting, but I for the last installation I moved the heat pretty slowly around the back to increase the heat and hopefully improve the adhesion.
Everything about the phone works perfectly, both hardware and software. When I plug in a charging cable is shows "Turbocharging" but the charge time estimated by the phone is 7 or 8 or even 9 hours. That's about how long it takes too. And the phone won't charge past about 90%.
I've already replaced the battery. I have no idea how to further diagnose the problem. Have I effectively destroyed my phone while putting on a prettier back (to summarize how stupid I'd feel)?
Click to expand...
Click to collapse
Either you have a cheap low quality battery or you probably burnt it up with the heat gun. The NFC pad is on top of the battery if that still works then I highly doubt anything else was damaged but I could be wrong. Worse case scenario you desoldered something on the motherboard but I doubt it. First check the wattage on your wall charger if it says 5 volts and 1 Amp then that's your issue. Most wall chargers or USB ports I use have to be at least 5 volts and 2 amps or it will not charge and it'll actually get stuck at 90% like in your case because the charge rate slows down after 80% I believe and a crap wall charger won't have enough power to charge the phone like a high quality OEM wall charger would.

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