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battery won't charge

my wizard battery won't charge.
i have tried another battery and another rom with no change.
wehn i plug in the sync cord, the izard reognizes that it is on external power but just won't charge the battery.
any ideas.
thanks

...try to find out, by measuring, if the ±5Volt DC is present on the pins on the inside of the ppc which is needed to charge the battery. Probably your charging circuit is busted and the ppc should brought back for repairs...

thanks for the response
what is ppc
where do i measure the voltage.
when i first connect the sync cable, it starts to charge for one or two seconds and then stops and reverts to a normal non charging screen.
thanks

PPC stands for Pocket PC
What you speak of, I had the same problem on my wizard.
My battery finally died and I couldnt re-vive my phone.
I bought a new battery off of ebay, put it in, plugged it into the charger that came with my phone, let it charge overnight and I havent had a charging problem yet.
My advice, as well as alot of others on this board, dont use any other charger other than the one that the phone came with. I know I wont be.

...inside your ppc,when you remove your battery, you'll see different connection pins which are normally connected to the battery. With power attached (and without battery) you measure between 2 pins at a time. WATCH OUT for shortcircuiting, be careful!!!. You can use an analog or digital voltagemeter. I don't know which pins, so you have to try it yourself.
You should measure ±5 Volt DC which's delivered by your adapter. If there's no power then your charging circuit is defect and you'll have to let it repair...

reading about a volt on the internal pins that connect to the battery.
so it's the charging circuit.
damn

I had the same problem twice with 2 different batteries. it seems if the batterie dies completely, the device can not recharge itself. something like a car, you need to have enough juice to start the car so you can recharge the battery.
I took 2 paper clips that i used to connect the charger directly to the battery( bypassing the phone). you need to be careful with that, make sure you connect the right battery pins. I left my battery like this for 15min, just enough to have aniough power to start the phone and continue the charging process regularly.

As mlarif said the battery can fail to charge if totally discharged. So if you are not absolutely certain your circuit is faulty there are at least two threads here describing how to butcher a usb cable to jump start the battery.
Sorry I can't remember the colours of the wires off the top of my head. But a search may find the relavent posts.

...you can also use a 9 VDC battery to give the ppc batteries a boost for a few seconds. But indeed be sure to use the right pins
(btw did you measure any VDC on the batteries..?)

Wizard not powering on or charging

Hey folks,
I've been given a Wizard that isn't working, but I get to keep it if I can fix it . Just now the the problem is that it won't power on and I can't get it to charge. I don't have any of it's 'original' accessories (eg USB cable and charger). The USB cable I have is a 5-pin, which I believe is the correct one for this phone, but plugging it into my computer's USB port isn't having any effect, ie it isn't charging the phone. I have the charger for a Motorola Razr which has the same connector to plug into the phone, but when I try to charge it with this nothing is happening. I don't know if the phone is a G3 or a G4 and I don't know how to tell which it is. Can anyone give me some help here?

hellsgate said:
Hey folks,
I've been given a Wizard that isn't working, but I get to keep it if I can fix it . Just now the the problem is that it won't power on and I can't get it to charge. I don't have any of it's 'original' accessories (eg USB cable and charger). The USB cable I have is a 5-pin, which I believe is the correct one for this phone, but plugging it into my computer's USB port isn't having any effect, ie it isn't charging the phone. I have the charger for a Motorola Razr which has the same connector to plug into the phone, but when I try to charge it with this nothing is happening. I don't know if the phone is a G3 or a G4 and I don't know how to tell which it is. Can anyone give me some help here?
Click to expand...
Click to collapse
As the battery is fully discharged and dead,It won't charge through usb cable with pc,as it only provides a charge of 0.5 amp,it'll also not charge with a Motorolla charger,it can only be charged through a wall charger which is capable of giving output charge of 1.0 amp or you can try a 'Jump' start the battery.But if the battery is faulty,it won't charge at all,you'll have to get a new battery.

Thanks for the reply zabardast.
How would I go about jump starting the battery? I'd like to try it before I go out and buy a new one.

hellsgate said:
Thanks for the reply zabardast.
How would I go about jump starting the battery? I'd like to try it before I go out and buy a new one.
Click to expand...
Click to collapse
How to 'Jump start',read my post in this thread,hope you get it right and working.
http://forum.xda-developers.com/showthread.php?t=374108

if you're good with electricity and have a DMM or Fluke you can also check the resistance on the battery and use a steadysize capacitor to try and jump it. it might burn the battery but it doesn't work anyways so you don't have much to lose.
the capacitor size can be calculated using:
C(capacity) = 1/wR - where w is the network frequency.. wherever you live. (should be easy to find it. usually 50hz) and R is the value you see on the DMM.
buy that capacitor and charge it using either an AC source or another wizard battery (fully charged) even tho i doubt it would have enough power to charge the capacitor... and then you can jump your battery. an AC source would be a great option since you can set the frequency to the exact network frequency in your house.
Hope it helps..

Iv'e actually had similar problems, and I've oddly enough found that if I used the car charger it would turn it right on. I went to EVERY Cing/AT&T, T-Mobile store and used every charger and nothing. I work for Asurion so I see this happen all the time, Im wondering if I just replace the battery with the High-Capacity type if this problem will be over.
Also just a side not, but it only seems to happen when I leave it off the charger and it shuts off by itself

yep
i had the same problem. and as of today just bought a new battery! my love is fine and alive again!!! the battery is only around 10.00 and is well worth the money to have my babe back! do the same man! you WON'T be sorry ... and it's worth 10.00 not to have to mess with tryin to jump it.

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.

HTC HD2 not charging need help!

rwtelecom said:
HTC HD2 T8585
When connect to usb via PC or wall charger no response at all from phone.
i tried fixing the middle battery terminal but it doesnt work at all.
hope somebody could help me with these...
thank you in advance!
Click to expand...
Click to collapse
try to connect the charger when the phone is off (not sleep, completly off)...if it's charge then uncheck the "Don't charge if connected to PC" or something like that setting is the power option...

If you can get a voltmeter that can test low voltage and use the test leads to test the positive and the negative pins, look at the battery to figure out witch ones these are as the battery is marked positive and negative. Also make sure you have your phone plugged into the wall charger while you are conducting the testing. I am not sure what voltage reading you should get as I don't know the exact voltage it takes to charge the battery, but it should be a pretty low voltage. If you get a reading between the positive and negative you are getting voltage to the battery and your problem is either software or your battery is no longer any good. If you don't get a voltage reading then you are not getting voltage to the battery and you probably have a hardware problem somewhere in the phone.
Also is the led lighting up when you plug the phone in to charge?

Ok I just tested my battery leads with a tester. I got a constant 00.3 volts on my tester testing from positive to negative. If you are getting this reading you are getting voltage to your battery. I would take a very close look at the pins(leads) that connectar to the battery, especially if you do a battery pull as your means of reseting your HD2 instead of using the reset button. A lot of wear and tear on these pins can cause very minor bends in them that can cause all kinds of ptoblems for users. Use a magifiying glass if you have to as they could be such a small difference in the pins that you can not tell with hour naked eye.
What I am concered about though is the fact you say your led is not lighting up when you are plugged into the wall charger nd that you have tried another battery. Also just for your benifit I recomend using the wall charger to charge your phone as the computer does not charge as fast, leading me to think it does not put out the same voltage. Anyway though you can try a hard reset and see if the led comes on then. If not you most likely have a hardware issue.
Also if you can not get it to work you can always buy a external charger to charge your battery. But I also suggest you get another battery if you do this so you can always hve a charged battery to uze while the other charges.

What os? Do you have magldr installed? Flashed any roms or radios lately?

rwtelecom said:
but its puzzling me, if usb port working, has voltage output on battery terminal, so why it doesnt detect by the computer? anyone can help me please?
Click to expand...
Click to collapse
Well, it could be the battery went bad. You'd have to replace it to find out.
As a last resort, you could also buy an external charger off ebay. They are inexpensive. I have one for my backup battery.
EDIT: I just remembered the check box for "Do Not Charge My Battery" in the settings menu under Settings / System / Battery. There is a check box, but this should not affect the wall charger.

Using Lipo Charger to directly power android tablet

My android tablet suddenly died on me and refuses to power up. Unable to charge the battery as well.
Am thinking of removing the battery from the tablet and then hooking up a lipo charger to the black and red wires on the circuit board. Hopefully this can power it on directly without the battery.
This is a simple and inexpensive lipo charger I'm looking at:
www[dot]sgbotic[dot]com/index.php?dispatch=products.view&product_id=999
Few concerns that I have:
Can the lipo charger be used as a direct power supply? I know voltage-wise, it's safe (3.7V). But I'm not sure if circuitry-wise, a charger works the same way as a power supply
Is 500mA current output from the charger enough to power on the tablet? If not, what is the recommended current output?
How do I know if the tablet has any logic to detect the presence of a battery? From what I see on the circuit board, there are only 2 black+red connectors (no data connector or anything)

A proper battery should less than that $15 charger. Even if you did bypass the battery you should be able to find a less expensive power supply.
Sent from my SM-N900T using Tapatalk

Spoo76 said:
A proper battery should less than that $15 charger. Even if you did bypass the battery you should be able to find a less expensive power supply.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
It uses a 12000mAh battery, which I think cost $40-60. The thing is, I'm not sure whether the issue lies with the battery. So i thought of bypassing the battery and see if it is a circuit board problem.
Here's the "tablet" I have. It's actually the viewing panel of my digital door viewer. Essentially a stripped down Android tablet:
www[dot]rollupcn.com/index.php/iHome4/show/19.html

Btw here're the pics of how the battery and the mainboard look like:
https[colon]//d3nevzfk7ii3be[dot]cloudfront.net/igi/SYJVWTdAPAPBRVCG
https[colon]//d3nevzfk7ii3be[dot]cloudfront.net/igi/q52LQk2X1s6NOaTK
Thing is - I'm not sure if the problem lies with the battery or the mainboard. Any suggestion on how to troubleshoot?

If you want to hack your Power from battery to directly input,
but fails to bypass battery check.
I have a idea that works. (some electricity knowledge required)
You can use a capacitor to "cheat" PMIC, and running on usb cable power.
Go buy a super capacitor (a 4.0F V-type should be OK.)
Charge it with the working voltage. (a few seconds is enough for that.)
Then remove your battery. Strip off the battery controller that you'll need.
Find out the positive and negative on it.(Important!)
And connect the charged super capacitor with battery controller, and put it back battery slot (It's small and fits)
And you can boot on cable power without battery!

In case you still look for a solution, I would connect a functioning Li-Ion battery, either 18650 or from another phone with at least 2000mAh capacity and hook a single cell Li-Ion charger with at least 1A rating.
Things to consider:
- the charger is likely to be noisy and needs a battery to smooth out the wave. It may or may not be an issue. Having a battery connected will dampen it down.
- connecting a smaller battery and powering the tablet via USB may dump too much current into the battery
- the tablet may draw up to 4A on boot, probably 800mA min, so your charger will need a full battery as a backup
- don't use a charger for a different battery chemistry. There is a chance of damage or even fire.
- some devices use I2C interface to talk to the BMS, but this is unlikely in your case
- make sure the temp battery you are using has a BMS