Broken MDA Vario after full battery rundown - 8125, K-JAM, P4300, MDA Vario General

Arg
Windows wont load and that means no chance of charging
This is the second time its happened and im out of spare batteries
Can anyone help?
Thanks

it might work
hey...so i had the same problem and there is one threat i cant remember the name right now...
but there ate two options u can do...
1. u can just take 3 AA batteries connect them and put wires on both ends and then put the one u wired at the + to the + at the battery and the - to the -...and that just for like 20 or 30 seconds...that schould give the battery enough power to startjust rechagre it normally with a wall charger.
or 2. i think its harder...but u can hold the wired to the first pin at the top of the battery pin things in the vario and the - to the miuns one, so the one at the bottom...then start it...put a usb wall charger to the usb and when its started u can take the wired away and put the battery back in...
the wizard wouldnt start when the battery died completly, cuz the os manages the charging, so when u cant start the windows mobile, u cant charge it...
but when i tried the first option it worked out pretty well...
so just try that...
if u dont really understand what im talking about just search a threat like dead battery or dead wizard...irt was something lik that but the result of thatone was the same that i wrote...
good luck with that!
bye

thanks
i think that should do it
its getting a bit old - so maybe its time for an upgrade anyway, an htc touch diamond or hd perhaps....?
thanks a lot for your help

The charger port had broken on my old MDA and before I sold it on eBay I needed to charge it cause the battery ran out (to prove it still booted). I used option # 2 in the-nj's post. I spliced open a usb cable on the mini-usb end and connected held the right wires to the + and -. I plugged in the usb end to my laptop. It was tedious but took about 15 minutes to charge past 10% which was good enough.

the-nj said:
2. i think its harder...but u can hold the wired to the first pin at the top of the battery pin things in the vario and the - to the miuns one, so the one at the bottom...then start it...put a usb wall charger to the usb and when its started u can take the wired away and put the battery back in...
Click to expand...
Click to collapse
Instead of fiddling and wiring 3 batterys together just get a 9v one (the type found in smoke alrms) connect it to your battery for about 3 seconds but repeat about 5 times then connect to either a charger or USB lead.

thanks
thanks guys for all your help
i think this is more than enough to get my good ol' mda back up and running
thanks for all your help

Related

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.

XDA Mini S....Dead....no really

Hi all,
Right, the battery on my XDA Mini S was getting low, so I plugged it into the wall charger (not an official one, its a motorola mini usb charger 5v, 850mA)
It was left charging for a couple of days. I think? Someone could have turned off the switch? But the switch was on this morning
Anyway.....It doesn't boot, no signs of life at all, if i plug it into the wall charger then there's no lights.
Doesn't even go to boot loader.
No response when plugging it into USB.
I've tried hard reset, no nothing.
It's weird because its been working perfectly.
I've been googling and reading the forums here.
I've had a go at "jumping" or reviving the battery. Maybe I'm doing it wrong?
I bought a 9v battery, took apart a mini usb cable and removed the red and black wires. I've been holding the wires from the 9v battery connecters to the tips of the + and - plates.
Still nothing.
Can anyone suggest anything?
Surely it can't just become a paper weight suddenly?
This hasn't happened from flashing either.
I've also tried another charger, which didn't work, so the charger isn't the problem.
Wohoooooooooooooooooooooooooooooooooooo!
Fixed it.
I tried "reviving" the battery again.
Except this time I tried connecting the + and - to different plates.
My sticker on the back of my battery lies, and tells me the wrong + and -
So I googled what an XDA Mini S battery should REALLY look like....voila!
better buy a 1AMP Wall charger and don't let the battery completely discharge.
Yeah, I heard this problem with a friend of mine as well. Battery ran out completely and it wouldnt charge at all (seems that it only charges if the phone is on, so, yeah, figures).
My suggestion on that case would be to try something else to charge the battery alone, dont know a specific charge but sometimes little things like putting it in the freezer for some time works to give it a tiny little life back, enough to turn on the phone, you never know.
hey i have same problem with that
im using 9 v batteries and connect to mda batteries
but still nothing
what must i do. . . . . .
would someone help me
i try all but still nothing
2 days a go my mda can on but only bootloader and then off
till now im so confused
please help me
i run out of battery too and now can't find anyway to turn on my mobile to charge. need some help too. hix
someone help us........................
ok, found the way and revive my phone
1, take a usb cable and cut it
2, there are 4 wires: red,black,white and green
we need red and black so cut those white and green
3, see on your pin, there are 6 bronze square, the frist and last have + and - icon on it
4,connect usb cable to r computer
5,red wire to the square has (+) icon
black to other
wait about 30s
6, place pin to yout phone and power on, u have some second to recharge it
nice, i'm charge my phone
it's not work for me
stiil freeze

Dead Battery HTC Wizard

Hi all, for those of you that have experienced a totally dead battery you'll know the pain it is to get it going again. I have recently had this happen and decided to post a fix on here.
Lesson #1 Dont let your battery die completely, if you get a low battery alarm, turn your phone right off till you can charge it.
Lesson #2 If your battery dies completely, just throwing it on the charger wont charge it. This is because the Operating System looks after the charging. If your OS wont load, your battery wont charge.
FIX:
After trying various methods on the net, I found a surefire way to jump start your Wizard so you can get it charging.
You'll need : 3 x AAA batteries and 2 lengths of wire and some tape.
I cheated here, I managed to pull a 3 pack AAA battery setup out of a regular Panasonic cordless phone which saved me having to piggy back the batteries.
1) If you dont have a battery pack, you'll need to piggy back the batteries. + to minus on each one so that you have 3 batteries connected to each other with one free + and - side. Use the tape to keep the wires from moving around and getting loose.
2) Remove the battery from the phone.
3) Put a wire from the + side to the top connector of the phone battery connection ( top gold pin, right hand side of phone nearest to the power button )
4) Put the other wire from the - side to the bottom connector of the phone battery connection ( bottom gold pin, right hand side of phone nearest to the camera button )
*** There are 6 gold connections sticking out on the side. Make sure the wires only touch the top and bottom pins. Bend them round if you have to and clip them if needed.
5) Try the phone and it should switch on now. If it does, push the battery back into place while its loading.
6) As soon as you get to the today screen, plug your charger in. Wait about 1 minute and check its charging ( from the battery icon under seconds ).
7) If its charging remove the wires from the AAA battery combo ( in case they explode or something ).
Hope this helps the next poor soul that didnt have time to charge their battery before it died completely. And thanks to all the posters that have helped me out with my problems. Long live the Wizard
While this is a good post, it in not entirely true. If your battery completly dies, you can infact use a standard wall charger that outputs 1AMP or more of power to charge it with, even if you phone wont start. The charger that is included with all HTC devices outputs 1AMP, so they should all be useable. Good post otherwise though!
Thanks ashasaur. When I posted this I did not have access to a standard wall charger. However looking at getting one just in case this happens to me again. HA I hope not.
Thanks for all that advice. In desperation, I have just bought a new battery and was relieved to see my Prophet come back to life, having, yes, let the battery run completely down. (I am away from home, where I left my charger as the Prophet seemed to charge quite happily from a USB port)
If 3 AAA batteries work ok (~4.5 volts), wouldn't it be a bit safer just to connect them to the dead battery for a while, as described above, to give it a bit of a charge, rather than risk the phone, or isn't 4.5 volts enough? Greg
buy a 4.5v 500ma adaptor and it will work
Earlier I was afraid of dead battery and use to turn off my kjam but later I got an idea and purchased one 4.5 v 500 ma wall adaptor($1 only) and cut the end socket and use it to give initial charge.
Earlier I was so much worried about my battery that had to put it in charging point where ever I find a usb port but now seems Kjam battery knows that's why haven't died for 2-3 months even though sometimes I forgot to charge it in night
pawanmehta said:
... purchased one 4.5 v 500 ma wall adaptor($1 only) and cut the end socket and use it to give initial charge
Click to expand...
Click to collapse
Great idea. Just tried it with an in-car USB power adaptor, but it didn't supply enough oomph. If you follow pawanmehta's advice, you might want to check out this site - USB pin out and lead details - for the correct leads to wire up.
A quick look around the internet suggests that mains to USB power adaptors are available at £4.85 (UK) or $15 USA but I expect a proper search would turn up cheaper items. Greg
It works with a O2 XDA Mini S, but it didnt work at first time: I have to put the cable with the 3-battery-arrangement and the 3.7 1400mAh battery at the same time, it's looks like that it wont turn on if the pins are not pressed, but well, I succesfully boot and now i'm charging (i remove the 3 battery arrangement).
And, I use 3 AA Duracell batteries, I tought it's the same than using 3 AAA, 'cause they use the same voltage (1.5 for common, and 1.2 for rechargeable).
Best regards, and thanks a lot MattyZee, u have my blessings
It works with a O2 XDA Mini S, but it didnt work at first time: I have to put the cable with the 3-battery-arrangement and the 3.7 1400mAh battery at the same time, it's looks like that it wont turn on if the pins are not pressed, but well, I succesfully boot and now i'm charging (i remove the 3 battery arrangement).
And, I use 3 AA Duracell batteries, I tought it's the same than using 3 AAA, 'cause they use the same voltage (1.5 for common, and 1.2 for rechargeable).
Best regards, and thanks a lot MattyZee, u have my blessings
hey everybody...
i read the thread a few days ago and thought...okay good to know but that will never happen to me now that i know that it shouldnt...
now...a few days later...of course it happenend...
soo...i tried everything. but the things are complecated to do alone...with all the wires and then pushing the power button and installing the battery again...
so i had to give up...
but here is another way how to do it...
it is already beein mentioned i think...
use the 3 battery combo, 2 wires at both ends, take out the dead battery and put the - wire to the pin at the very botton (the bin at the longer end) and the + at the other end.
hold that just for about a minute (i think i just holded it for 10 seconds but a minute would be better maybe...)
and then put the battery back in and it should start...
oh and i tried to use a 1400mA wall adapter and it didnt worked...
but try to avoid that...
it is not a nice situation seeing youre wizard dieing like that...
and at first i thought it is not the battery...i thought it is broken...
so avoid it if possible...
thats it...
What is length wire (sorry if it's a idiotic question)
please help
btw, I have O2 xda mini S.
And can I use 3 AA batteries????
thanks a lot,it worked
once again THANK YOU
You guys are geniusses It started, but when it started I put the charger in it fro my laptop and waited a while (removed batteries) then i saw it was charging but when I was waiting some more it yust fell off !! So i started it up again with the AAA's and then putted charger back in and i was using the phone, I saw it was charging and I looked @ lvl and it kept on saying it was on 0 % :s Then i thought let me wait a while and i stopped using it so it fell off again, what did I do wrong twice ?
Thx
A 9v Battery (The type you find in smoke alarms) does the job as well.
ONLY connect it for a couple of seconds, but repeat about 5 times then connect it upto a usb data lead and after about 10 seconds it should kick in.
After its been charging for about 30 mins turn the Wizard on.
Have succesfully used this method on 3 Wizards now and it works every time!
Don't Forget To Put The Battery Back In Your Smoke Alarm!
Exceptional
Thank you. I have a Kaiser that I love, and was just handed a Wizard that wouldn't even start. This post let me boot it and start the charge.
Thanks.
Apologies for bumping an old(ish) thread but I've tried this jump start method and seem to be having no luck with it.
I've tried the methods suggested, using 3 AAA batteries didn't seem to do a thing for me, but I've had a slight result using one of those square 9V batteries; the camera flash comes on and the screen lights up but wm doesn't begin booting up (the screen just stays blank but lit).
I've also tried attempting to give the battery some charge using the method mentioned earlier but that too doesn't seem to be working either.
The battery in question is brand new (one of those extended ones with a higher mAh) and I'm assuming it's arrived with zero charge in it.
Does anyone have any suggestions?
(incase anybody is wondering, the wizard boots up fine using a different battery which is charged)
edit: if it's of any relevance, the wizard's a g4.
edit2: I've tried charging it with the wall charger but all that seems to happen is a red light flashes once every 5/10 seconds and the screen flickers on then off
Update: After numerous attempts at jump starting, my wizard now refuses to charge whatsoever.
The light flashes orange (I did follow the guide posted on the wiki about that but it had no effect) but it comes up saying it's charging onscreen, however it simply doesn't charge (the battery life just slowly drops).
It's the same using either the wall charger or usb.
I did try taking the battery out/doing a soft reset/doing a hard rest but to no avail.
Would I be correct in assuming my wizard's now broken?
I'd just donated my blueangel to a friend too as I thought I'd no longer need it, but now i'm left without a phone
I've found a standalone battery charger on the internet for around £10 or so, I might give that a try. If it works, I'll have my wizard back, albeit without being able to charge it while it's switched on. On the plus side, it would eliminate the need to jump start it ever again though.
wizard resurrection...
This problem is quite a hard time for the wizard users...
I know many users with 2 or 3 wizards in the closet because they just died, and there are none powered batterys around...
I hope this can help someone, somehow...
WIZARD RESURRECTION
Props to all!
undertuga
How did u make out with the battery issue? I have the same prob and the light on the camera lights up but i can't get it to charge and i'm using a new battery any suggestions would be helpful. Thanks
Just to repeat a comment made by ashasaur 12 months ago. You need a 1amp charger. Although someone had success with a 500mA charger, that wouldn't work for me, whilst a 1000mA (1Amp) charger worked to recover a completely discharged battery.
A new battery should not have zero charge. NiMH batteries do not like being left around fully discharged and, to the best of my knowledge, are not supplied discharged.

how to charge htc 8125 with no original usb cable and(or) without orig. wall charger

hi there.
shortly-i have this phone with no orig. usb cable and with no wall charger. it was friend of mine phone actualy. given to me with dead battery (i am not sure but i have trouwn it away long time ago)
first I did was to wait until friends of mine from china had sent to me 2 batteries compitable with the phone. what i discovered is that a normal ordinar usb cable cant charge the phone's battery it only can connect to the pc.
second what i did is this: i found my old charger from a very old panasonic cell phone and had a try to make the charging process with the simply contacting corresponding pinouts of the battery to the +&- of this same charger (somehow i dissasembled the plug of that charger and it became more "comfortable" to get in touch to the pinouts of the specific cingular's battery)
that unordinar way i did discovered that i can charge these batteries even not sure how much appropriate that other brand wall charger is. It seems its pretty much the same as a power characteristics.
Meanwhile (as i dont use this phone) i had some free time to search the net and to have better idea about that strange unordinar power charging matter with that model of a phone. The situation is that i cant find a place nearby me to buy a cheap usb and wall charger and become using this nice device finaly.
And also i dont want to buy these cable things before clearly understand why this happens ..
I did try also to charge this phone with a HTC brand wall charger but no sucsess again cause it seems this wall charger is for other htc phone (even same mini usb plug and same characteristics)
What i need is to have answers by someone very informed about that matter and let me know what exactly is the specific power charging matter (need explanations i mean) with this phone. If sharing some good ideas about how to remake others usb cable or wall charger for geting it work along for me in such a case , i will appreciate this very much
thanks
charge
hi ! please forgive me for my bad english! in this case you can charge your phone in 1 way! you need to procure a motorola or any charger with same socket but attention the charger must have 6 volts and no less than 500 mAh(milli amps)! you cut the wires and one wire put on the + of the battery you will see the signs on the battery an one wire at the - no matter which one. and you need stay with the wires 3 - 4 minutes on the battery ! then you put the battery on the phone it will start and then you cand fully charge it with the usb cable ! good luckk ! i hope my inf will help you!
no
no it doesnt work that way.
what i need is the simple answer : what is so special into the pinouts of htc cingular 8125 wall charger?
thats what i need only. Then I might figure out how to proceed
Thanks anyway
I don't know if anyone else has had trouble doing what I have done, but I've got the Cingular 8125 (HTC Wizard 100), which is also known as the HTC 8125.
1. I bought a car charger at a convenience store for $6 that had the mini-USB plug. It worked like a charm. Never any problem there.
2. I also bought a standard USB to mini-USB cable from the local computer store, because I had lost mine, and it also worked fine for both synchronization and for charging.
3. I bought a second wall charger, buying a standard mini-USB wall charger sold pretty much everywhere cellular phone chargers are sold. It's a common charging port, and this generic worked for me as well.
I'd be interested to hear if anyone has had problems with these types of devices not properly charging the unit.
Even my USB cable for my portable USB hard drive will power my unit.
EDIT: About your problem with it not charging. I had that problem about a year ago, when my battery got extremely old. It wouldn't charge even with the original charger. I just needed a new battery. The batteries get old and stop taking a charge after a certain amount of use. How long this takes depends on how heavily the batteries are used. They, like car batteries, do not last forever.
I had this problem when I had my wiz too. The battery died and drained, and my phone refused to charge it. I took it to an AT&T service center, and they had no clue what the problem was, and they wanted to issue me a replacement (it was a G4, I had a G3, I wasn't about to fiddle with that at the time.) So I asked to borrow a demo device they had there to fix it. I charged my battery on their demo device no problem, got it up to 3%, and finished charging it through my USB cable in the car socket.
It appears to be a sort of one-in-every-few-or-so type condition, but I got hit with it.
seems like noone can tell me if something special inside the mini-USB plug.
i realy cant charge. Very nice device, but i cant make it charging up whit cables.
guys, from up there, say that nothing special about the charging cables, but i trust what i see not what i read.
Perhaps there is a problem with your USB port on the device? USB charging has standards, and all devices that need power from a USB port have the same power pin configuration. Otherwise, they can't call it a USB connection. It would have to be called a proprietary connection, and they would have to change the plug size/dimensions and pins.
If there isn't a problem with your battery (which is the most likely source of your problem), then it may be a loose connection on your USB connector. This happens with a number of devices.
If a sync cable connects to the PC but will not charge the battery, then you definitely have an unusual pin detachment of some sort, or a bad battery.
thanks again..
for pity i was writing a lot to make my recent post and finaly it desapeared cause my session was left.. its funny in some case, but now i just dont want to repeat all what was intended to be posted
i give only the link where you might see why i was assuming that this is a kind of a special matter here with that htc 8125 charging
//pinouts.ru/CellularPhones-A-N/razrv3_charger_pinout.shtml
so, any more help will be appreciated a lot
thanks
SOLVED: HTC Wizard (Cingular 8125) Dead Battery Wont Charge
Dozzen said:
hi ! please forgive me for my bad english! in this case you can charge your phone in 1 way! you need to procure a motorola or any charger with same socket but attention the charger must have 6 volts and no less than 500 mAh(milli amps)! you cut the wires and one wire put on the + of the battery you will see the signs on the battery an one wire at the - no matter which one. and you need stay with the wires 3 - 4 minutes on the battery ! then you put the battery on the phone it will start and then you cand fully charge it with the usb cable ! good luckk ! i hope my inf will help you!
Click to expand...
Click to collapse
Hi - Too bad for the OP that asked questions but did not listen to this brilliant post.
I have confirmed that a variation of this method works perfectly! I have an old Cingular 8125 that I have been trying to charge for over a year using various USB chargers and NONE would charge the device.
The reason that this may happen is that the original charger has an output of 1 full amp which is much higher than most chargers. The voltage is the same but you need a charger that can handle such a strong current draw.
Nearly all USB chargers can only handle around 250milliamps - 500milliamps which is about half the power needed to breathe life into a fully discharged battery.
The best solution is to NEVER let the battery fully discharge.
Here are the details of what I did:
1. Find the best match charger of 5-6 DC Volts and ability to put out as close to one amp (1000mA) as possible. I chose an old Sanyo SCP-07ADT that is rated at DC 5.4V at 800mA. The plug can be any type, no need to be USB.
2. Cut the connector off the end of the cable and strip the outer black part up about an inch and then strip the positive and negative (red / black respectively) wires up about a millimeter, just enough to have bare metal ends to touch to a small area.
3. Take your battery out of the phone, look at the back of battery for the + and - marks which correlate to one of the metal connection points on your battery, this is where you will "touch" or "attach" the bare ends of the wires.
4. Plug the charger in making sure not to short your bare leads. Before you do this double check that the OUTPUT of your charger is indeed DC voltage so that you don't hurt yourself. You do not want AC output and it can be dangerous.
Then touch the bare end of the red wire to positive of battery, and black wire to negative terminal of your battery. I held them with my fingers while surfing the web for about five or ten minutes. I had no idea if anything was happening or not but it "felt" like the battery might have gotten just a bit warmer.
5. Unplug the home-made bare wire charger and put battery in your phone. Quickly attach a USB charger or just plug into a USB cable of your computer. I pushed it in and nothing happened at first but finally I heard the standard "bleep" when you plug a USB device in. I knew that I made progress because it never beeped before it took about 30 seconds and several "bleeps" of connecting/disconnecting from USB but eventually the charge light stayed on!
It's been about 30 minutes and I'm up to about 50% charge and been using the phone heavily while charging.
So, in summary... never let your battery discharge below 5% or you can only charge it with an OEM cable rated at 1amp (rare). IF you let it discharge to "dead" then charge for 5-10 minutes with the "wire" method and then charge normally!
Thanks to Dozzen for the original idea!!
Wizard that won't charge
When my Wizard/HTC 8125 goes dead my cure for the battery is to use a 9 volt charger with the wires stripped back also. But, my method is a bit different. I place a standard Christmas Tree light bulb (the newer small ones)in series with the charger wires. Observe the correct polarity. The battery is labeled + and - so that part is easy. By using the small light bulb you are doing 2 things. 1.You can see the slight glow from the bulb and know that proper connection is made. 2. You are limiting the charging current to the battery.
If you get really creative like I did you can solder a couple of small nails or in my case a set of red and black probes to the setup and the points on these nails/probes make for much easier connections. Note.... This method may take a few minutes longer but, is much easier on the battery.
In my experience once the battery is below a certain level NO charger that I plug in will work. I just purchased a used 8125 from eBay and brought it back to life most successfully with this method.
hy there my htc wizard battery whos dead so i charched with a cable with + and - the phone starts but when i try to connect to a usb or a adaptor it doesnt charge anymore it show me the charge icon on the baterry but it doesnt charge the usb works fine it's sync to my pc but it doesnt charge anymore... what sould i do?
So it seems no one touched on what really matters here.
A design flaw, in my opinion. The HTC Wizard cannot recharge via USB unless there is enough power to turn on. The reason is because it requires the OS to charge.
So, what many people already posted are very creative ways to charge your 8125. The easiest and cheapest way, in my opinion, is to use AA batteries.
1) Take two AA batteries and tape together so they are in series. Imagine it like this... [- AA battery #1 +][- AA battery #2 +]
2) Use two wires and tape one to each side of the AA's (one on the + side and another on the other battery's - side since the - of the first battery is connected to the + of the second).
--w-i-r-e--[- AA battery #1 +][- AA battery #2 +]--w-i-r-e--
3) Connect the positive (+) wire to the positive (+) side of the phone. By this I mean the 6 metal pieces that stick out to contact the phone battery. I did it by wrapping the wire around the top most one (or second top most, it's been over a year since I've done this.).
4) Connect the negative (-) wire to the negative (-) side of the phone. Again, bottom most or second bottom most (see #3).
5) Insert phone battery while the wires are still in and connected to the two AAs.
6) Let the power flow for 30 seconds or so and then try turning your phone on. This part is the important part because you cannot use a USB to mini-USB connected to your computer to charge the phone unless the operating system can function. Meaning, it needs to be turned on first.
7) Once the phone is on, plug in the mini-USB part and connect it to a computer. I'd recommend getting at least 5% battery before disconnecting the AAs, seeing as you need to be able to start up your phone long enough for the OS to boot. Once the OS boots, you can fully charge it through a normal USB to mini-USB connection on any computer.
old post but just wanted to say thanks. Used the wire to battery method and got phone turned on after 2 mins of holding wires to battery.

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