Question about T-Mobile MDA

1 Answer

T-mobile MDA short battery life

Hi all, Had my MDA for about 8 months now. Virtually since day 1 I've had very short battery life - usually last from about 07:00 to 22:00 or 23:00 that night, then it's dead - battery flat, and I have to charge it over night. Per the 'comms manager' button (top left on side of phone, above volume control) only phone and speaker are on - bluetooth and infrared are off, as are active synch etc. etc. Backlight is set to 1 setting above PowerSave (i.e 4 away from 'bright'). I have maybe 5 minutes of phonecalls a day (that's calls and answers). I do use the web'n'walk a bit (10-15 minutes a day), but most always disconnect after I am done (on the G connectivity icon on the top line). So - the question is - do I have a dud battery, or am I missing out on something. I accepted it as a bad normal, but recently have chatter with several people who say they get 2-3 days. I've compared settings and can't find a major difference. Any dieas?

Posted by on

1 Answer

Re: T-mobile MDA short battery life

Try clearing any programs that may be running in the background.

Posted on Apr 26, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

My T-Mobile MDA won't turn on or take a charge, battery was low

I had the same problem, but got the idea to "jump start" the battery from Googling the problem. At night, I had turned off my MDA to charge the battery and then in the morning, couldn't revive it. I removed the battery from my MDA, and determined which battery terminal was positive (far end of one side) and negative (far end of the other side) by using a multi-meter. BTW: Battery was still @ 3.5V (okay…battery was still alive, if just barely). Then, I found a 5V DC charger (5W Max output = ~1A) from my bluetooth headset. I used one wire (CAT5E) and connected it to the negative side of the adapter (outer sleeve - again, verified by multi-meter) and another wire to connect to the positive tip of the adapter. I had to strip about 1/2-inch of the insulation off of the wire on the DC adapter side, and about 1/8-inch of the wire on the battery side. Plugged in the 5V DC charger and then I touched the negative wire to the negative battery terminal and held it there, while I touched the positive wire to the positive battery terminal for about 30-45 seconds. Put the battery back in the MDA, started it up, and now it's charging on the regular MDA AC Charger that came with the phone. Problem solved.

Apr 07, 2009 | T-Mobile MDA


Hi, I would like some help reg, the T-Mobile MDA charging. I got 2 batteries, 1...

Your battery has been depleted past a chargable state.  This is a due to a bad design in the phone that doesn't monitor the battery power state well enough.  It actually allows the battery to be taken under the minimum amount needed to recharge the battery. 

You can fix this, but do so at your own risk.

You can simply purchase a new battery, that will work, just been sure not to let it deplete the battery totally anymore.

Now, on to the fix

-Take out the battery.
-Get any usb cable you can find sitting around. (any usb wire will do, an old printer cable, anything with a usb end that can plug into your computer)
-cut one end of the plug off. You need to leave the side on that connects to your computer. Cut off the side that plugs into a device (printer, camera, web cam, etc)
-Strip the rubber off the wire and expose the wires inside.
-Separate the wires from each other. You will only be using the BLACK and RED wires.
-strip the very end of the black and red wires carefully using a wire cutter exposing the metal wire inside the red and black covering.
-Plug in your home made battery charger to your computer. Careful not to touch any exposed metal, as it will give you a small shock.

-now carefully hold the black wire to the negative terminal on the battery (it should be noted with a black circle with a - in the middle). Then touch the red wire to the positive terminal (it will be noted with a red circle with a + in the middle).

Hold the 2 wires there for 20 seconds. Then quickly plug the battery back into the phone, and then plug it into a regular charger. Give it little bit of time, if you've done everything correctly the charge light should come on.

I had to repeat the last step again to get the light to turn on indicating it was charging.

You must not hold the wires to the battery for too long, 20 seconds should do it. You can overload a battery with this trick and actually make it explode if you hold it there too long. You are well within the few minutes needed to detonate the battery due to overcharging by sticking very strictly to 20 seconds.

Just be careful and you'll be fine.

One you get a charge light give it a few minutes in the off position, then try powering up the device and keep it plugged in until you get 100% charge.

Good luck,


on Jan 08, 2008 | T-Mobile MDA

1 Answer

MDA Vario died - HELP

hi. i have had the same problem and have had to change the battery twice in the three years i have had it. sometimes the batteries that you can buy off ebay are quite cheap but go off without any warning fairly quickly.last one i have bougt has lasted me 1.5 years without any probs.
my other advice would be to back up your contacts/other sensitive information somewhere safe( your phone SIM for example- which has to be done one at a time for the mda vario)as well just in case.
hope it helps

Aug 16, 2008 | T-Mobile MDA Vario Smartphone

1 Answer

T-Mobile MDA won't hold a charge

if you insurance on your phone I recommend using it, I had a MDA for a couple years and had about every problem in the book, but not that one. It sounds like you've done everything possible, the only other thing i could think of is a hard-reset. Anything beyond that would tinkering with the internal hardware.

I think you can get a MDA pretty cheap on ebay these days

Jul 19, 2008 | T-Mobile MDA

2 Answers

I have an T-Mobile MDA. I haven't used it for over 6 months, went to charge it last night. plugged in the charger and the blue power light came on, went to menu screen. Left the MDA charging upon returning...

Your first bet is to remove the battery and hold down the power button for 10 seconds, then replace the battery and try to turn it on.

Sorry I'm not more familiar with the model of phone you're talking about but this has worked for my old PDA's when they won't power-cycle correctly.

Jun 27, 2008 | T-Mobile PDAs

1 Answer

MDA will not charge

dear there is some problems in the pins of ur MDA...squeeze them with something...then it will work...

Jun 22, 2008 | T-Mobile MDA

1 Answer

MDA will not power up.

another this to try is get a new battery.
mine had the same problem i would try to charge and nothing and it would turn on for about 30 seconds then turn off and i tried putting it on a charger within those 30 seconds but it wouldnt take a charge.
i got a new battery theat had some charge in it and it worked great! alot of the time thats all you need it a new battery

Mar 15, 2008 | T-Mobile MDA

2 Answers

T-Moblie MDA Dead

I did the same thing, Blue Bay Electronics had a seven day warranty just long enough to fool me into giving a good report. Anyway look for a repair center and spend another 100.00. Good luck

Oct 07, 2007 | T-Mobile MDA

1 Answer

T-mobile mda

buy a battery new

Sep 14, 2007 | T-Mobile MDA

2 Answers

MDA (T-mobile)

Make sure that your mda is being charged with an original charger

Sep 14, 2007 | T-Mobile MDA

Not finding what you are looking for?
T-Mobile MDA Logo

Related Topics:

64 people viewed this question

Ask a Question

Usually answered in minutes!

Top T-Mobile PDAs Experts


Level 3 Expert

56631 Answers

Martin Murray

Level 3 Expert

1614 Answers


Level 2 Expert

166 Answers

Are you a T-Mobile PDA Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides