Database Users

HTC not charging, battery dead?

Helloes guys and goils.
I have a HTC wiz, and for a good few weeks now I have had problems with it.
First off, It would NOT charge through the Wall Socket OR USB, I let it run down over XMas and it's not been the same again.
It just will not charge or come on.
When I plug it into USB it looks as if it is charging, with the Orange light and The power bar turns to the socket looking thing, but when I leave it to charge it just goes off and doesnt come back on.
When I plug it into the wall socket the HTC does not respond.
I have been asking my mate in work to put it in his and charge it via HIS wall charger, which has worked a few times, but I seem to be getting a very awful run out of my battery.
I am thinking it is the phone and NOT the battery as i first thought, I dunno, im scared of throwing up £30 notes on a new battery only to find it is the phone.
What do you guys think I should do?
I heard somewhere that it is a SOFTWARE based charge and not a hardware based charge, what does that mean?
DO u think a flash would help it? I cant see it myself.
Or is my HTC just goosed?

Well
I can speak from experience when I tell you my wizard nuked 2 batteries...
how I dont know.
Hopefully one of the gurus can shed some light on your situation

(¯`·._.·[LaZaRuS]·._.·´¯) said:
. . .
I am thinking it is the phone and NOT the battery as i first thought, I dunno, im scared of throwing up £30 notes on a new battery only to find it is the phone. . .
Click to expand...
Click to collapse
If you do replace the battery, look on eBay - I got a new 1250 mA battery (there are also 1100 mA versions, don't get that) for $13.99US including shipping - works great!

Make sure its nothing simple... Try the USB cable plugged directly into the computer without using a USB hub (if you are) and different USB ports on the back of the computer. Also try different outlets for the AC adapter. If still nothing else I'd even ask for help from your local cell phone store (put on a sad face) and see if they'll lend you a power cord and or swap out batteries to see if they can reproduce the problem on a different Wizard, battery, etc.

There has been many posts on this subject with several different fixes.. i would suggest searching and reading and you can find your answers

My case
Hi,
I had somewhat similar problem with mine. My porblem was that I bought the Wizard with a Motorola charger. It had the same mini usb plug and when I plugged it to charge, the led on the wizard was orange and the Wizard indicated its charging, but the moment I unlugg it, the battery indicator was coming back to its previous state. My solution is to use the PC USB to charge it, on a couple of occasions I had the battery completely drained and had to "jump start it" by connecting the wires from the usb directly to the + and - of the battery. Even used once my good old AA Ni-MH charger to jump start the battery and it worked.
So perhaps you are not getting power from the cable, why not try with different charger or charging from another USB source (PC).
Hope this helps

Just happened to me tonight. Thought that my Wizard was toast as well.
I merely took the battery out for 10 minutes, put battery back in, and plugged device into original wall charger. All is well now.
-Jeff

XDA Mini S + USB Charging

Not sure if this is right part of forum, but here it goes.
I am having an issue with the charging of my O2 XDA Mini.
If my battery dies, with still a small bit of power left in it (enough to get splash screen) and I go to charge it works fine no problem. Now over the wkend my phone died on my and I left it till this afternoon when I tried to turn on, it wouldnt turn on at all (not even splash) because obviously the battery is completely dead. Now when I go to plug it in, it wont charge, from USB cradle, the little orange light to say that its charging doesnt even come on.
Last time this happened I eventually got it to work via a friends socket (plug) charger, rather than USB, charger. Is there any reason for this or anyway that it can be fixed that even when the battery is completely dead I can charge it from my USB cradle.
Any help would be apreciated.
Thank you in advance
Rattlehead

Sorry to bump this, but does anyone have any idea. I beleve the cause of this is due to the fact the USB power from the PC isnt enough to get the charging process started, is there anyway to get this done via the cradle.
Thanks
Rattlehead

You'll need to use a charger that plugs into a wall socket I'm afraid. This happened to me once & that was the only way I could get it to work. If you search on Google, you'll find methods that involve a stripped down usb cable, but a wall charger is definately easier.
Good luck.

Should any usb based wall charger work?
I have a Motorolla one and Ive tried that but that didnt work.
I know for a fact that when I use my friends one it works and will charge, but he aint round for another 2 weeks
Poop

Rattlehead.ie said:
Should any usb based wall charger work?
I have a Motorolla one and Ive tried that but that didnt work.
I know for a fact that when I use my friends one it works and will charge, but he aint round for another 2 weeks
Poop
Click to expand...
Click to collapse
You cannot charge a totally flat battery through usb cable using PC,cuz it only supplies 0.5(500)amp,whereas to get the dead battery back into charging,it requires a supply charge of 1.0(1000)amp,secondly you can only charge the phone via usb if it's working normal and not when it's dead,as you cannot boot into OS.
Therefore,it'll only start to charge with a 'Wall Charger' which only supplies 1.0 amp,your friend's Wall (Mains) charger must be suppling a 1.0 amp charge.You cannot even charge it with the Motorola usb charger cuz it also supplies only 0.5 amp.So try to get a Wall (Mains) charger to get it start charging.
OR,
Yes! you can Jump start the battery using Motorola charger,but you'll have to sacrifice the motorola charger to do it,as you'll have to cut off the usb plug of the charger cable end and attach the 'Red' wire to the '+' (Possitive) connector of the battery and black wire to the '-' (Negative) connector of the battery and give Shock Charge to the battery for 10 seconds,repeat this for 4/5 times,it'll give the battery a jump start and will increase the 'Pulse' level of the battery,after that put it in the phone and check if it loads up,if it does then you can charge it via usb cable connected with PC.
Good luck
BTW ! there's an excellent thread regarding charging to avoide the battery to go flat and saving from getting into this situation,it wud be very info for you,check it also :-
http://forum.xda-developers.com/showthread.php?t=342162
Cheers

zabardast_1 ,
You are the Guru ~

sorry couldnt reply to you before now, zabardast_1 thank you so much.
Thats great will have a look tonight and see what I can do

Here is a simple way of solving the problem, go and buy a charger, they cost next to nothing.

Car charger does not work

Q: Suddenly my car charger (cigarette lighter plugged) is not working anymore. After 5 mins. my device stops charging..... is there anybody having the same problem and knows how to solve it?

If it's after a period of time maybe a battery contact issue?
vincentvdvelde said:
Q: Suddenly my car charger (cigarette lighter plugged) is not working anymore. After 5 mins. my device stops charging
Click to expand...
Click to collapse
If you've already read the sticky posts relating to car chargers and your (mystery brand) charger isn't one of those, then maybe your phones battery terminals and connectors need careful cleaning with a cotton bud moistened with contact cleaner or IPA. I had a problem with my mains charger ceasing to charge my TyTN II after a minute or two a long time ago and after cleaning as described, the problem went away. Be sure not to spray the contact cleaner or IPA onto the phone or battery, only the cotton bud/Q-tip and then gently rub that on the spring contacts and battery terminals. How does charging via mains adapter or PC USB port go?

Flying Kiwi said:
If you've already read the sticky posts relating to car chargers and your (mystery brand) charger isn't one of those, then maybe your phones battery terminals and connectors need careful cleaning with a cotton bud moistened with contact cleaner or IPA. I had a problem with my mains charger ceasing to charge my TyTN II after a minute or two a long time ago and after cleaning as described, the problem went away. Be sure not to spray the contact cleaner or IPA onto the phone or battery, only the cotton bud/Q-tip and then gently rub that on the spring contacts and battery terminals. How does charging via mains adapter or PC USB port go?
Click to expand...
Click to collapse
Thats the thing: adapter/ USB port works for recharging.... v strange

vincentvdvelde said:
Thats the thing: adapter/ USB port works for recharging.... v strange
Click to expand...
Click to collapse
It still could be a battery contact issue as voltages may differ slightly when using the car charger compared to the other forms of charging. As an example if the Kaiser is set to stop charging when the supply voltage drops below a certain value and the car chargers voltage is lower to start with (and fluctuates with normal driving/electrical usage) then that may explain things. It's well worth doing this cleaning every so often anyway as a matter of course so give it a try and see what happens.
Additionally, could heat be a factor eg if it's sitting on a hot dash or near heater vents (the device is designed to not recharge above certain temperatures)?

Flying Kiwi said:
It still could be a battery contact issue as voltages may differ slightly when using the car charger compared to the other forms of charging. As an example if the Kaiser is set to stop charging when the supply voltage drops below a certain value and the car chargers voltage is lower to start with (and fluctuates with normal driving/electrical usage) then that may explain things. It's well worth doing this cleaning every so often anyway as a matter of course so give it a try and see what happens.
Additionally, could heat be a factor eg if it's sitting on a hot dash or near heater vents (the device is designed to not recharge above certain temperatures)?
Click to expand...
Click to collapse
Thanks for the advice, i will give it a try

if you have any adapters that allow for another usb input, nice a headphone adapter, or the HTC Multifunction Audio Cable YC A300, a ycable or anything with a USB in, try that first.
if that doesn't work, take the unit into your retailer and they will give you a new (or refurbed) unit, as your USB port may have a pin or two out of whack.

This may be weird, but my tilt used to charge just fine from most USB chargers(car, AC, usb cords). One fine day it quit charging off most chargers except the official AC charger from AT&T. I tried to fiddle with the USB pins inside as one looked like it might be a bit bent/damaged. No luck.
However, yesterday I noticed that My Settings->System->Power->Advanced settings page had following option checked:
'When device is turned on, do not charge the battery when connected to the PC'.
Once I unchecked it, it started charging of PC USB cables (obviously), but strangely enough also charging from my car charger(s). Hope this works out for you or someone else...

jrd said:
This may be weird,
'When device is turned on, do not charge the battery when connected to the PC'.
Once I unchecked it, it started charging of PC USB cables (obviously), but strangely enough also charging from my car charger(s). Hope this works out for you or someone else...
Click to expand...
Click to collapse
It is probably because your normal USB pin 4 and 5 in the cable of your other chargers are not shorted to signal that there is no data connection. So your phone thinks it is connected to a PC (or a device which might send it data), hence not charging the battery according to that setting

I have a similar infuriating problem, i have had a MDA VArio III for over a year now, had an issue with my last one and had a replacement issued in October. Now i have used the Brodit active holder (ciggy lighter version) since day one over a year ago and wit the new MDA as well. now all of a sudden phone will not charge in the holder, borrowed a friends active cradle still no charge, used a no brand usb ciggy ligther charger and charges fine!!!!
When phoe n is placed in the holder orange charging light comes on but phone does not charge and the light goes out 5 mins later!!!
any ideas anyone???
thanks
Matt

Mattcity said:
I have a similar infuriating problem, i have had a MDA VArio III for over a year now, had an issue with my last one and had a replacement issued in October. Now i have used the Brodit active holder (ciggy lighter version) since day one over a year ago and wit the new MDA as well. now all of a sudden phone will not charge in the holder, borrowed a friends active cradle still no charge, used a no brand usb ciggy ligther charger and charges fine!!!!
When phoe n is placed in the holder orange charging light comes on but phone does not charge and the light goes out 5 mins later!!!
any ideas anyone???
thanks
Matt
Click to expand...
Click to collapse
Problem solved - Pin 5 on my phone was ever so slightly out of alignment, bent back into place and all is now well! strange it only affected the brodit holders, nothing else!

Car charger failure explained
I also experienced this same problem and actually broke my phones mini usb plug in frustration at lack of charging. Got it fixed again though
The reason for this problem has become apparent since my phone was repaired. In your car, like my car when the heater is switched on it will gradually heat up the cigarette lighter socket. My charger cable like yours has a thermal safety circuit built into it. So when the ciggy socket heats up the heat is transferred to the charger plug and breaks the elec charging circuit. You might see me driving around London with my charger plug hanging out of my window (to cool it down) on a Winter's day!!! Honk if you do.
The solution would be a cheaper charger without the thermal circuit built in. Go into Maplins or PC World and ask them for that..... They dont know what your talking about, because I have already tried.......! Good luck

You just need to make sure to enable your phone to charge when connected to PC.
Start->Setting->System->Power->
UN-CHECK the box that said "When device is turned on, DO NOT CHARGE the battery when connected to PC"

HTC Wizard (Qtek A9100) Charging Problem.

Hello there,
I was charging my Qtek normally with it's original charger. My sister umplugged it a couple of times to charge up her notebook.
My Qtek won't charge anymore. It's working fine. It turns on, I can use it normally. But It won't charge.
My guess is that something happend to the mini usb plug or circuit, because it won't charge with it's charger, neither with USB cable plugged in the computer. And it can't communicate with the computer trought the cable too. Bluettoh works fine with Actve sync.
Someone have any clue about what happened?

Same thing happens to me today...
I'll show in the Qtek...
But I think that "usb plug" is "unplugged" from motherboard...

Visualy no problem with my usb plug... Welds are well...
So, the problem is IN the USB PLUG ????
I have found some on Ebay :
____://cgi.ebay.fr/5X-USB-Charge-Port-Plug-HTC-Pilot-Universal-Wizard-/400125580417?cmd=ViewItem&hash=item5d2957d481#ht_2473wt_1137
Is there some doc about ?
Thanks,

I Haven't opened it yet. I'm travelling, and I don't have the proper tools. But tomorrow I'll be back home and I can say if something physical happened.

So rocksull ? USB Plug is dead ?
I bought the connector and and external charger too (5$) with a battery (6$) on EBAY...
But usb plug is sent from USA, so I'll receive it in two weeks...
Bye,

Well.
I opened up my Qtek. The welds were messed up (Cold Solder). I'm just waiting a friend that has a soldering station to see if we can re-solder the plug. I'll post results soon.

Hello Rocksull,
So, It's good for you ?
I tried soldering USB plug, but welds are too small...
So actually I'm using an external battery charger... ((((((
Bye,

I was able to solder the plug back, because I work with that.
It charged again, but the battery didn't last 1 minute. I opened again and saw that the circuit is also messed up. There's one or two transistors burnt, a little capacitor.
Anyway... I gave up. I was about to buy a new cell phone anyway, and I can use the other componentes (LCD screen, camera, etc) to build some projects. =D.
I was able to solder woth a hot air soldering station (I don't know of that's the name) and some liquid weld. We have this stuff because we work with SMD components.

Galaxy Tab charging issue + solution

Hey guys - I've been dealing with a Tab charging issue for a few days, and finally solved it... but I thought I'd post the problem and solution here in case it can save someone else a load of frustration if they run into the same problem.
From what I've read, we know that the Tab only draws .5A power from a USB socket, but that it draws ~2A from the wall, and that it knows the difference by testing for a short on the TX/RX USB data wires. (Correct me if I'm wrong on the details, but that's the general impression I've gotten.) We also know that the iPhone/iPad/iPod uses a pair of resistors instead (per the USB spec) to determine the current-delivery capability of the source. (I'm no EE, so I'm a little fuzzy on how that works from a technical perspective.)
So to set the stage: I had brought the USB cable for my Tab with me, but had neglected to grab the USB->outlet adapter for the mains. Similarly, a friend who was on vacation with us had forgotten the charging cable for his iPhone. Thinking I was killing two birds with one stone, I bought an aftermarket USB charging cable for the iPhone which had a separate USB->outlet adapter. His iPhone charged swimmingly, and when I charged my Tab overnight (screen off, starting at ~89% charge) using my cable and the aftermarket adapter, it worked flawlessly. No problem, great solution, or so it seemed...
...until I got home. Suddenly, my Tab wouldn't do more than a trickle charge - the same charge it gets when connected to the USB port on my laptop. (I could tell this was the case because of the small red 'x' next to the charging symbol in the battery icon - which I hadn't noticed while on vacation.) A 2.5-hour car trip using Navigator (screen on the whole time), even with the car charger connected, killed the battery completely. No matter what I did - shutting down apps, rebooting the device, resetting every option I could find - I could not get a fast charge to happen. Even leaving the device plugged in overnight resulted in *less* charge than what I started with if I didn't turn the screen off. I called T-mobile, talked to Samsung tech support twice... and all they could offer was to have me send the Tab back for replacement.
I was at a loss. I nearly did a hard reset in frustration, thinking I had screwed something up royally.
Then I saw the resistors in the pictures in this post:
http://forum.xda-developers.com/showthread.php?t=845844&page=3
and something clicked. I had been assuming that the *cables* were the difference between the iPhone and Tab chargers... but there isn't enough room for resistors in the cables! (Well technically, there is, but regardless...) The resistors must live somewhere else... and, I reasoned, that somewhere must be inside the USB->outlet adapter. So I pulled out the 'proper' Samsung adapter, plugged in the Tab, and voilà... a perfect fast charge.
So this is why the Tab won't charge with an iPod (or Sony-Ericsson, as it turns out) mains USB adapter OR USB-port car charger: the circuitry to let the device know it's capable of a full 2A delivery doesn't live in the Samsung cables; it's only present in the adapter. If that's not there, the device thinks it's connected via USB (and will, in fact, say "USB Connected" every time the charger is plugged in) and won't charge more than a trickle.
So that's my story, and hopefully it can save someone else some pain and frustration. Thanks for giving me the floor.

mattcelt said:
Hey guys - I've been dealing with a Tab charging issue for a few days, and finally solved it... but I thought I'd post the problem and solution here in case it can save someone else a load of frustration if they run into the same problem.
From what I've read, we know that the Tab only draws .5A power from a USB socket, but that it draws ~2A from the wall, and that it knows the difference by testing for a short on the TX/RX USB data wires. (Correct me if I'm wrong on the details, but that's the general impression I've gotten.) We also know that the iPhone/iPad/iPod uses a pair of resistors instead (per the USB spec) to determine the current-delivery capability of the source. (I'm no EE, so I'm a little fuzzy on how that works from a technical perspective.)
So to set the stage: I had brought the USB cable for my Tab with me, but had neglected to grab the USB->outlet adapter for the mains. Similarly, a friend who was on vacation with us had forgotten the charging cable for his iPhone. Thinking I was killing two birds with one stone, I bought an aftermarket USB charging cable for the iPhone which had a separate USB->outlet adapter. His iPhone charged swimmingly, and when I charged my Tab overnight (screen off, starting at ~89% charge) using my cable and the aftermarket adapter, it worked flawlessly. No problem, great solution, or so it seemed...
...until I got home. Suddenly, my Tab wouldn't do more than a trickle charge - the same charge it gets when connected to the USB port on my laptop. (I could tell this was the case because of the small red 'x' next to the charging symbol in the battery icon - which I hadn't noticed while on vacation.) A 2.5-hour car trip using Navigator (screen on the whole time), even with the car charger connected, killed the battery completely. No matter what I did - shutting down apps, rebooting the device, resetting every option I could find - I could not get a fast charge to happen. Even leaving the device plugged in overnight resulted in *less* charge than what I started with if I didn't turn the screen off. I called T-mobile, talked to Samsung tech support twice... and all they could offer was to have me send the Tab back for replacement.
I was at a loss. I nearly did a hard reset in frustration, thinking I had screwed something up royally.
Then I saw the resistors in the pictures in this post:
http://forum.xda-developers.com/showthread.php?t=845844&page=3
and something clicked. I had been assuming that the *cables* were the difference between the iPhone and Tab chargers... but there isn't enough room for resistors in the cables! (Well technically, there is, but regardless...) The resistors must live somewhere else... and, I reasoned, that somewhere must be inside the USB->outlet adapter. So I pulled out the 'proper' Samsung adapter, plugged in the Tab, and voilà... a perfect fast charge.
So this is why the Tab won't charge with an iPod (or Sony-Ericsson, as it turns out) mains USB adapter OR USB-port car charger: the circuitry to let the device know it's capable of a full 2A delivery doesn't live in the Samsung cables; it's only present in the adapter. If that's not there, the device thinks it's connected via USB (and will, in fact, say "USB Connected" every time the charger is plugged in) and won't charge more than a trickle.
So that's my story, and hopefully it can save someone else some pain and frustration. Thanks for giving me the floor.
Click to expand...
Click to collapse
I've recently seen (somewhere) a usb pigtail cable that shorts the pins to make the tab (or any other usb chargable phone) think it's hooked up to a wall charger, rather than a trickle charging usb port.... I need to find that again and just order a few to have in my various cable bags.

If you do find it again, please post it here. Definitely something I'd like in my bag of tricks as well.

Just as an FYI, the 2A charger that came with my Nook Color charges the Tab just fine from mains, even indicates charging. Makes sense, since both devices have a 4000mAH battery.
It's also a nicer unit for travel, it's nicely rounded, the prongs fold into the body of the charger, and you can pick it up from Barnes and Nobles stores just about anywhere in the US. Still doesn't solve the Tab cable issue though.

Croak said:
Still doesn't solve the Tab cable issue though.
Click to expand...
Click to collapse
I'm planning on hacking apart a spare Tab cable so that it goes to a female microUSB; no more multiple cable types then. The stock Tab cable doesn't appear to have more than 6 pins, of which I'm sure a few are grounds.

Someone recently posted a link to the first cheap 3rd-party cables:
http://www.dealextreme.com/details.dx/sku.51931
Get those with a 6' USB extension cable and the Nook charger, and that may be a winning combination. I ordered four the the charging cables yesterday, and I'll try to remember to post whether or not they work out well.

Resonance, what are you planning on using for a car charger, if any? I really like the Navigator app, but it's just not practical if I can't keep the Tab charged while using it.
Does anyone know if there are any USB->12v adapters that have the right circuitry for the Samsung? For that matter, do any other devices use the same amperage detection setup the Tab does? It would be good to know what components are cross-compatible.

Thanks for the info.
How about a list of chargers that work fine on the GTab.
1. Garminfone charger (1amp - works great and I use it as my primary charger)

mattcelt said:
Resonance, what are you planning on using for a car charger, if any? I really like the Navigator app, but it's just not practical if I can't keep the Tab charged while using it.
Click to expand...
Click to collapse
A 12V inverter, attached to the standard wall charger. :/
I bought the Duragadget 12V->USB charger, since it was advertised specifically as a 2A charger for the Galaxy Tab, but it DOES NOT work as advertised (the Tab treats it like a any other low-current USB port, and even offers to mount mass storage, heh).
Using the inverter and the wall charger worked just fine, though it was a bit clunky and unstable (on mine, the prongs aren't tightly gripped, so it bends out of place easily).
Does anyone know if there are any USB->12v adapters that have the right circuitry for the Samsung? For that matter, do any other devices use the same amperage detection setup the Tab does? It would be good to know what components are cross-compatible.
Click to expand...
Click to collapse
I'd been contemplating giving the Duragadget charger with integrated cable a try, but having been burned once by Duragadget, I'm a bit hesitant to do so.

ResonanceZero said:
Someone recently posted a link to the first cheap 3rd-party cables:
http://www.dealextreme.com/details.dx/sku.51931
Get those with a 6' USB extension cable and the Nook charger, and that may be a winning combination. I ordered four the the charging cables yesterday, and I'll try to remember to post whether or not they work out well.
Click to expand...
Click to collapse
OMG...I bought a charger cable from amazon SOLD BY AMAZON marketed as OEM samsung charger and I got the same one in the deal extreme page. WTF...paid $12 for it too.

ResonanceZero said:
A 12V inverter, attached to the standard wall charger. :/
I bought the Duragadget 12V->USB charger, since it was advertised specifically as a 2A charger for the Galaxy Tab, but it DOES NOT work as advertised (the Tab treats it like a any other low-current USB port, and even offers to mount mass storage, heh).
Using the inverter and the wall charger worked just fine, though it was a bit clunky and unstable (on mine, the prongs aren't tightly gripped, so it bends out of place easily).
I'd been contemplating giving the Duragadget charger with integrated cable a try, but having been burned once by Duragadget, I'm a bit hesitant to do so.
Click to expand...
Click to collapse
looks like that car charger is the same as the one you bought with a USB cable included.

nacron said:
looks like that car charger is the same as the one you bought with a USB cable included.
Click to expand...
Click to collapse
Good eyes. I thought it was a different unit with an integrated cable.
Has anyone found a functioning 12v charger?

yes, the verizon store has a 12v charger for the galaxy tab, but that was the only place I was able to find one... other than online.

Hi,
Can anyone else confirm that the Nook charger works for the Tab?
I've tried other high current (2.0+ amp) chargers. Some designed for the ipad and some not, and I always get the trickle charge icon and it's treated as a computer USB connection (Mass storage device options, etc).
How much was the Verizon charger?
Thanks!

stock wall charger works for me.

knowthenazz said:
Hi,
Can anyone else confirm that the Nook charger works for the Tab?
I've tried other high current (2.0+ amp) chargers. Some designed for the ipad and some not, and I always get the trickle charge icon and it's treated as a computer USB connection (Mass storage device options, etc).
How much was the Verizon charger?
Thanks!
Click to expand...
Click to collapse
Google the gobatt 2 charger. It comes with a usb adapter that charges the tab on any charger.

texasreb said:
Google the gobatt 2 charger. It comes with a usb adapter that charges the tab on any charger.
Click to expand...
Click to collapse
Hi,
Thanks for the tip. I can't find much information about the Scosche GoBatt 2 charger, or the adapter that comes with it. Today I tried other Scosche chargers, including their iPad charger, and it didn't seem to work.
Can you give some more details on the adapter that comes with the GoBatt 2?
Thanks!

Got this travel adapter by ZipKord with 2 - 1 amp outlets. Works with the OEM cord and also the Gomadic tip made for the Galaxy Tab. Just need to be careful it's not the older version that only has the lower power outlets. Cheapest I could find was $13+, so if it's less, it's the lower power. With the Gomadic tip and reractable cord, it says it's charging.
EVO 4G 9292 - Travel Adapter By ZipKord
Also this Scosche battery pack seems like it would work. Has 2 - 1 amp USB ports. I ordered one and should get it tomorrow.
Scosche IPDBAT2 Portable Back Up Battery for iPad and iPod
Oops - can't do links. Just search in Amazon. It's where I got both.
Gomadic cord and tips from Gomadic. Love losing the excess clutter (cords).

galaxy tab 7 charging while turned on
can someone explain well how to build the adaptor for charge galaxy tab 7 while it turned on?
is it possible to have a scheme with picture and some photos which describe the work to do?
thanks. and excuse me for bad english.
mattcelt said:
Hey guys - I've been dealing with a Tab charging issue for a few days, and finally solved it... but I thought I'd post the problem and solution here in case it can save someone else a load of frustration if they run into the same problem.
From what I've read, we know that the Tab only draws .5A power from a USB socket, but that it draws ~2A from the wall, and that it knows the difference by testing for a short on the TX/RX USB data wires. (Correct me if I'm wrong on the details, but that's the general impression I've gotten.) We also know that the iPhone/iPad/iPod uses a pair of resistors instead (per the USB spec) to determine the current-delivery capability of the source. (I'm no EE, so I'm a little fuzzy on how that works from a technical perspective.)
So to set the stage: I had brought the USB cable for my Tab with me, but had neglected to grab the USB->outlet adapter for the mains. Similarly, a friend who was on vacation with us had forgotten the charging cable for his iPhone. Thinking I was killing two birds with one stone, I bought an aftermarket USB charging cable for the iPhone which had a separate USB->outlet adapter. His iPhone charged swimmingly, and when I charged my Tab overnight (screen off, starting at ~89% charge) using my cable and the aftermarket adapter, it worked flawlessly. No problem, great solution, or so it seemed...
...until I got home. Suddenly, my Tab wouldn't do more than a trickle charge - the same charge it gets when connected to the USB port on my laptop. (I could tell this was the case because of the small red 'x' next to the charging symbol in the battery icon - which I hadn't noticed while on vacation.) A 2.5-hour car trip using Navigator (screen on the whole time), even with the car charger connected, killed the battery completely. No matter what I did - shutting down apps, rebooting the device, resetting every option I could find - I could not get a fast charge to happen. Even leaving the device plugged in overnight resulted in *less* charge than what I started with if I didn't turn the screen off. I called T-mobile, talked to Samsung tech support twice... and all they could offer was to have me send the Tab back for replacement.
I was at a loss. I nearly did a hard reset in frustration, thinking I had screwed something up royally.
Then I saw the resistors in the pictures in this post:
http://forum.xda-developers.com/showthread.php?t=845844&page=3
and something clicked. I had been assuming that the *cables* were the difference between the iPhone and Tab chargers... but there isn't enough room for resistors in the cables! (Well technically, there is, but regardless...) The resistors must live somewhere else... and, I reasoned, that somewhere must be inside the USB->outlet adapter. So I pulled out the 'proper' Samsung adapter, plugged in the Tab, and voilà... a perfect fast charge.
So this is why the Tab won't charge with an iPod (or Sony-Ericsson, as it turns out) mains USB adapter OR USB-port car charger: the circuitry to let the device know it's capable of a full 2A delivery doesn't live in the Samsung cables; it's only present in the adapter. If that's not there, the device thinks it's connected via USB (and will, in fact, say "USB Connected" every time the charger is plugged in) and won't charge more than a trickle.
So that's my story, and hopefully it can save someone else some pain and frustration. Thanks for giving me the floor.
Click to expand...
Click to collapse

potential solution
found this on youtube, looks like it has great potential:
forum won't let me post url links, but this is the video code in you tube. We're all geeks here (I think) so you know where this goes :
=uPc-ZA3t5aY
hope it helps!