USB Power Problem - Please Help! - 8525, TyTN, MDA Vario II, JasJam General

When the PDA part of the phone is turned on and I plug the unit into the AC wall charger or car charger the phone will not always go into charge / full power mode (i.e. the charge light does not come on, the screen does not go to max brightness as it has been defined in the settings, and the bettery icon at the bottom of the sceen does not show that the unit is on AC/external power). I have tried this on the OEM charger and several other mini-USB chargers - one charger will work one time but will not work later that same day. The only way to ensure a charger will work while I am using the PDA is to soft rest the unit right before I plug it in to the AC or car charger.
Only the PC/ActiveSync USB cables charge any time (PDA on or off) when plugged in to a PC.
Is this a hardware problem or a software problem? Please HELP!!!
Make: VPA Compact III (HERM200)
ROM: 1.20.161.5
Radio: 1.03.06.00

jeutaw said:
When the PDA part of the phone is turned on and I plug the unit into the AC wall charger or car charger the phone will not always go into charge / full power mode (i.e. the charge light does not come on, the screen does not go to max brightness as it has been defined in the settings, and the bettery icon at the bottom of the sceen does not show that the unit is on AC/external power). I have tried this on the OEM charger and several other mini-USB chargers - one charger will work one time but will not work later that same day. The only way to ensure a charger will work while I am using the PDA is to soft rest the unit right before I plug it in to the AC or car charger.
Only the PC/ActiveSync USB cables charge any time (PDA on or off) when plugged in to a PC.
Is this a hardware problem or a software problem? Please HELP!!!
Make: VPA Compact III (HERM200)
ROM: 1.20.161.5
Radio: 1.03.06.00
Click to expand...
Click to collapse
Have not personally come across this, though I did once get the fairly common red light when Hermes knows the chargers there but refuses to charge.
Whether this is software or hardware is not straightforward. At first you would tend towards a hardware issue if the PC USB link always charges. Suggesting a fault in the contacts of the charger devices.
However an increasing number of phones generally have circuitry to detect their own chargers. Notably many of the Motorola phones that actually pop up a note saying unauthorised charger. I am not aware that Hermes has this function and does not have any message pop up. The surprise here is that the OEM charger is similarly flaky. However if a software reset without moving connections around does sound more software than hardware and possibly related to a loaded application?
Mike

Seems to be a known problem:
http://forum.xda-developers.com/showthread.php?t=274665&highlight=reset
http://forum.xda-developers.com/showthread.php?t=277742&highlight=reset

Related

batt, chargers,....

hi,
is there is difference between charging at charger or usb? charging speed, battery life?
whats your aprox. batt life for one charging?
What about car charger (there is lots of story that is no good for batt?) its a same jack for mda compact, jasjar and phone motorola v3! can use theese chargers safely!?
tnx!
I have a motorola BT headset with usb style plug so that users can charge headset and phone (ie V3) at the same time, I have tried it with my "spare" o2 xda exec and can confirm that it does not charge dispite the charger being the same voltage as the exec charger - I still cant see why it wouldnt work, unless its something to do with reversed polarity.
I've got a similar problem, I have a Leadtek GPS with a mini USB plug, the output is also 5v and 1amp as per the XDA's charger YET the XDA won't charge.
I presume the XDA charger is sending some kinda of data signal in addition to Voltage that tells the HTC unit to switch onto Charging mode?
I've disected a USB cable trying to get this to work, so has anyone got any ideas as to how to make a Y cable capable of charging the XDA?
I had the same issue with my old Motorola BT headset and the "two-pronged" charger. When I plugged in the car charger and connected the Exec....nothing. Until I turned OFF the phone and left the phone connected to the charger. Hey Presto! Charging light.
Now though the BT headset packed in and I've had to buy a G2 from Bluetrek.
Cheers
Ant
Oh right! So you turned the Phone element off, or do you mean put the PDA on standby mode?
I'll play more with this later.
Pressed the power button.
Sorry, should have been more precise. With the phone connected, press the power button, wait a few seconds. You should see the green signal light flash a few times, then suddenly flash twice quite quickly. Finally, the charge light should appear.
Cheers
Ant
Dude, you're right!!!
I've just gone ahead, and made my Y cable by stripping two USB cables, joining, heat shrinking...
Plugged it in and IT WORKS!!
YIPPPEEE, that saved me a fortune!!

USB charging

My new M3100 is great, apart from one thing. I seem unable to charge it using any of the three in-car adapters I have that worked a treat with my Prophet.
Anyone know if this is an issue, or just specific to my M3100 (which appears to not be charging properly even when on USB or mains adapter)?
Cheers,
Sam
i have tried 2 different USB car chargers and neither have worked. Last one was 1A but still no joy.
Did you drain up the batt? I mean, was it full discharged when you attemped to recharge it? I have the same problem, no way to recharge it, at least the orange light doesn't show up.
If i try it at home, no prob. But what with a usb? no way
There are issues with some car charger USB connections.
I do not suffer this problem because I find it very useful to have an "inverter" permanently in the car. For those that have not seen these, it is a device that converts the battery voltage to mains supply voltage. This allows you to plug in as if you were at home. Handy for your hermes, laptop, phone etc etc without the hassle of special in car setups - just plug in with your normal mains plug. Most of these devices just plug into your cigarette lighter socket, although I have mine permanently wired in - so I also have the socket still available.
here is a UK example but I imagine they are available for all countries:
http://www.caravantechnology.com/pr...&selection=1&gclid=CMn-1fXq1YoCFR2UEAodLSvYLw
There is a known issue on car charging where the device will only charge when switched off. If this is your problem see the wiki here or my link below.
http://michael channon
Mike
I've had that problem too. Strangely enough, restarting my 8525 gets the car charger to start working
try powering off your unit, it will get the orange light. Turn it back on after 5 mins and the charging will hold. not sure why.
I was having the same problem as mentioned above with a usb car charger that came with my GPS, however I just received my car charger from HTC FINALLY! With the HTC car charger and home charger, I have no issues charging the Hermes where I sometimes run into problems with say a generic motorola or igo power adapter - these sometimes require me to restart my device before charging begins.
By the way, I am going on a trip where I'll be away from power for 4 days ... can anyone recommed a portable cell phone charger that runs either off of AA batteries or solar power?
I think there is another thread about this somewhere, but I don't have time to look it up. I've had this same problem with several chargers that worked fine on my Cingular 8125 (HTC Wizard). History is that there is a firmware issue on the TyTN that checks for a data pin in the USB interface coming from the charger, and if it doesn't have the right voltage on it, the phone doesn't charge. When you totally power down the device (holding down power button for a while and then hitting yes to the power down question), then the charger works. It's when the device is in standby that it doesn't work right, because the firmware checks for the pin to be correct, doesn't find it, and disables the charging circuitry.

Repair a Hermes

All,
I'm looking for a company which is able to clean and repair my HERM300 device.
It got wet and now when I want to charge it the led turns red.....
When I leave my device on a warm radiator it works and I can use the device...
But it seems to fail when it gets colder....
Any suggestions?
Cheers and thanks,
Hellejoep
hellejoep said:
All,
I'm looking for a company which is able to clean and repair my HERM300 device.
It got wet and now when I want to charge it the led turns red.....
When I leave my device on a warm radiator it works and I can use the device...
But it seems to fail when it gets colder....
Any suggestions?
Cheers and thanks,
Hellejoep
Click to expand...
Click to collapse
Can you say a bit more on "fail when it gets colder...."
I ask because soon maybe tonight I'm going to make a post on the charging and Red light problem but I'm just wondering exactly what you mean by "fail"
Cheers
Mike
mikechannon said:
Can you say a bit more on "fail when it gets colder...."
I ask because soon maybe tonight I'm going to make a post on the charging and Red light problem but I'm just wondering exactly what you mean by "fail"
Cheers
Mike
Click to expand...
Click to collapse
It blacks out as soon as I connect it to my activesync via USB....
Is it a short circuit?
Or something else?
Cheers,
Hellejoep
mikechannon said:
Can you say a bit more on "fail when it gets colder...."
I ask because soon maybe tonight I'm going to make a post on the charging and Red light problem but I'm just wondering exactly what you mean by "fail"
Cheers
Mike
Click to expand...
Click to collapse
I would like to add something, may be you already know, to red led knowledge. I have a car charger (just plain chinese USB charger with usb cable) When I connect my HERMES I could have 3 conditions: orange (charging) Nothing (not charging) or RED (?). If I soft reset, with charger connected, I ALWAYS have orange, after Windows Mobile screen, But if I disconnect and reconect I have ALWAYS No Light
connecting hermes to charger without battery also enables red light.
Charging Problems - Red Light of Death (RLOD)
Battery Charging Problems, in particular the RLOD so called because the phone refuses to charge and the red LED shows, indicating that the battery is NOT charging.
Background
Problems with charging are not HTC or Windows Mobile specific. Similar if not identical problems are reported across many models and platforms. The issues centre around the state of charge of the battery and the interpretive circuitry in the device and charger. Typically a device will show a Red light rather than an Amber charging light. (NB: RED LED always shows when battery is absent or fails to charge). see also http://forum.xda-developers.com/showpost.php?p=1076879&postcount=28
Getting the battery to start charging once this light is shown is not always straightforward and is as unpredictable and temperamental as priming a water pump (those that have done this will know what is meant). In other words, and to put it crudely, you need to kick start the system. Unfortunately those that have managed to do this have usually tried lots of things before it starts working again. This makes it hard to be absolutely certain about the solution other than perhaps the last 4 or 5 actions taken.
Those that have managed to recommence charging have not reported that the problem recurs on a frequent basis. (possible exception of in-car charging issue). This issue requires patience and time, (time maybe critical, it is possible the issue would resolve itself perhaps as charges dissipate within battery and circuitry involved). However the following points seem probable solutions and were thought to work by some who resolved the problem.
Failure to Charge (Red LED Lit when charger connected)
Causes of this problem are unclear, but in practical terms events leading up to this issue have included:
1
Leaving the phone on charge overnight (possibly but not necessarily with certain programmes or connections running) It seems a fault occurs in the charging system, which causes the battery charge to drain rather than increase. Resulting battery charge is very low. (Another Blog will be added concerning an Active Sync issue which can cause the battery to drain over-night through repeated connection attempts)
2
Through heavy use or not re-charging often enough so that the battery is permitted to reach a sub 10% charge (not precisely known but likely to be very low)
Possible Solutions:
A
1.) Remove battery
2.) Connect the phone to the charger or USB
3.) Insert the battery while connected to charger
4.) Red light should turn Amber
5.) Soft Reset
If this does not work immediately it is suggested that the battery be removed from the phone for around 1 hour and the above steps repeated.
OR
B
It has been found with some phones charging can be re-started by:
1 ) Remove battery
2 ) Connect charger (Optional. I would try this potential solution without the charger connected the first time I try this. If it fails to work then I would repeat the steps with the charger connected)
3 ) Holding the battery, line it up wiith the phone's battery contacts.
4 ) Move the battery rapidly on and off the contacts
6 ) Repeat the above until the Amber charging light comes on. So after perhaps connecting/disconnecting 20 times, insert the battery properly and give it a few seconds to see if the LED turns Amber.
7.) Soft Reset
NB: I have seen two reports where those attempting this report a fairly loud "pop" sound following which the phone began to charge. However in one case the person reported that they then had subsequent problems of signal reception on the phone and thought the popping sound may have been related to this.
OR
C
If your problems remain after trying this a few times you could always try the following to manually charge the battery a little (enough to let the phone charger circuit detect the battery is present when you put it back in)
1) Remove the battery from the phone!
2) Take 3 fresh AAA batteries in series (total 3 x 1.5V = 4.5V)
3) Connected the (+) wire to (+) on the battery
4) Connected the (-) wire to (-) on the battery
5) Hold this in place for 60 seconds.(possibly longer you are trying to charge it enough for charging circuitry to recognise there is a battery installed.
6) Put the battery in your phone
7) Switch on phone and start charging (via USB)
Hopefully you will get the Amber charging light.It may be worth repeating this a few times if not successful on the first try.
The electrical contacts are all important, poor contacts will render this a worthless exercise.
I leave it to you to decide how you connect the wires. If you have no other means you could enlist the help of someone to hold the batteries and wires together while you connect to the phone battery! Warning - Do not connect a mains based transformer to the battery with an incorrect charge rate (mAh) and voltage (V). Any attempt to force charge using mains transformers could be extremely hazardous (explosive). Only a qualified/competent person should attempt to charge the battery in this way. Similarly, even if you are using batteries to do this task, do not leave them connected for more than a few minutes and stop immediately if either set of batteries become warm.If the problem persists:The final resort - a new battery.
Mike
╤
Very good article Mike, I linked it on the Hermes problems wiki page
i just want to add my 2 cents to this, there was an earlier post on here that mentioned the car charger deal where it wont charge unless you turn the phone off, plug it in, then turn the phone.. right now i am on my 2nd 8525 and it has done this, but its not only the car charger (cheap belkin car charger) but it sometimes does this with usb cradle i got from ebay, i have opened the cradle and there isnt anything different, its a straight usb connection, hmm except now that i think about it there is a blue LED, but it shouldnt be drawing enough current to cause this. Also i have a motorola charger in my office that i used with my wizard (i believe output is slightly different, if i remember correctly its a .5 amp where as the HTC charger is 1 amp) but it also behaves in the same manner... the only 2 methods that work constantly and consistantly of plugging in without turning off is either the factory charger, or a regular usb cable on the pc..
just seems weird since all of these problematic situations worked fine on the wizard and i believe they both have the power requirements...
let me toss another idea in the fire here on this, something that just occured to me... i wonder if this somehow could be related to the factory installed driver for this. what made me think of this is how the battery meter only goes by 10%.. could this funky driver be the source of the problem?
shogunmark said:
right now i am on my 2nd 8525 and it has done this, but its not only the car charger (cheap belkin car charger) but it sometimes does this with usb cradle i got from ebay
Click to expand...
Click to collapse
If your cradle is not connected to your PC, or if your PC is off while you see the behaviour you described, then the likely reason is that pin 4 of the Mini USB connector isn't grounded on both your car charger and cradle. See here for more details.
Cheers
Daniel
pof said:
Very good article Mike, I linked it on the Hermes problems wiki page
Click to expand...
Click to collapse
Cheers pof.
Some of the type sizes are a bit strange (but readable!) serves me right for copying and pasting from Word formatting!
Tadzio's link is good/informative and I edited in a link to it in my post - though it's on this page anyway.
Mike
tadzio said:
If your cradle is not connected to your PC, or if your PC is off while you see the behaviour you described, then the likely reason is that pin 4 of the Mini USB connector isn't grounded on both your car charger and cradle. See here for more details.
Cheers
Daniel
Click to expand...
Click to collapse
cradle is connected to pc at all times, and i will deal with the car charger for now cause my HTC one should be arriving any week now, but thanks for the tip!
8525 (hermes) Charging may be voltage sensitive
I have noticed with my new 8525 (USA Cingular model of phone) that it came with a 5.5V charger. Whenever I connect to a 5.0 V USB source charging the phone is very "iffy". Given that the standard for USB is 5.0 V (4.75 - 5.25) there is a problem with the design. My question for the HTC crowd is can this be fixed via a ROM change or are we stuck with a bad design?
hellejoep said:
All,
I'm looking for a company which is able to clean and repair my HERM300 device.
It got wet and now when I want to charge it the led turns red.....
When I leave my device on a warm radiator it works and I can use the device...
But it seems to fail when it gets colder....
Any suggestions?
Cheers and thanks,
Hellejoep
Click to expand...
Click to collapse
http://www.america.htc.com/support/service-repairs.html
Since you got it wet, it is most likely not covered by the warranty, these and the numbers for out of warranty repair if you live in the U.S. I know that for cingular, you have to ship it to them yourself, and they will charge you a $28 diagnostic fee, before telling you how much is costs to fix the problem (if they even can)
heh here almost the same, providers are charging ~$29.5 USD as diagnostic fee but they are more polite, they first tell estimated costs, and only ask for the sum if you (usually) don't order the repair but need back your phone
Hellejoep:
if you are willing to send it abroad (inside EU) and you are either not need "overnight return" or such nonsense or cover the extra costs such operations really need, you may contact me. no diagnostics fee or anything such (though you will have a small loss.
about the charging problem:
the same issue occurs also in Wizard/Prophet, and Charmer (compactII) as well. though not in Magician, even so that they share the exactly same battery.
I believe it must have something to do with the charging controller. I don't have a disassembled unit at home with me now, but I suppose it should be a crap companion chip from Texas, to be interfaced with the ever-worst TI OMAP platform
(sorry, no hard feelings, pals, but someone using such one as an actual everyday phone must have some sorta mental problem )
strange battery issue
Hi all,
I've a similar issue with any charger.
It happened first with car charger (one cradle with an usb output): sometimes it charged, most of all it charged only when power was off.
Now I cannot charge with any method. (those described here: battery charging problems)
Usb cable (it's not original), original power supply, even with the y cable.
When i try to charge, it drain battery (i tried with a new one) and amber led blinks slowly instead to be firmly light.
There's anything I can do?
It's a SPV M3100 buyed two months ago on ebay.
I tried also with two roms WM6 official release ITA ver and Schap's 3.54b ITA ROM WM6
radio 1.48
Any suggestions?
Herm200/tytn problems
hi to all,
i read most of your post on possible problems with this PDA (HERM200/HTC TYTN).
i'll try to spent some few words to explain the story around my pda.
i live in italy and i bought the TYTN on december 2006 and for 6 months with his software problems i used it day by day in my business activity, untill one day, it falled down the ground from my and with all the leather cover (bundled with the pda, an hard black belt cover); then i took it and picked up a telephone number from my addres book and then putted it in charge for all the night; when, late in the morning, i took it, i noted that there was still the red light of the battery indicator and then PDA didn't turned on.
i tried to make soft/hard reset but nothing.
I carried to the italian warranty service of HTC and after 7 days they deliver to me the PDA in the same state that i carried; on the technical report there was: pcb damaged, battery connector pinouts damaged, pda not Repairable - out of warranty.
i thought: "i have had a lot of care for this PDA that still look like as new one"
and now i have a 700€ of unusefull PDA.
Last day i finally decided to open my PDA to find broken pieces and more.... but nothing.... i observed really well: NOTHING of wrong.
Now i will to know if somebody of you, can suggest me something to revive my PDA or suggest me any service center (affidable) in europe (not like the italian one) where to send it for maintenance: I DONT WANT TO THROW OUT MY PDA!
Thank you in advance for your attention and patience.
ps: sorry for my english, i hope it will be comprehensive.
therock-htc said:
Now i will to know if somebody of you, can suggest me something to revive my PDA or suggest me any service center (affidable) in europe (not like the italian one) where to send it for maintenance: I DONT WANT TO THROW OUT MY PDA!
Click to expand...
Click to collapse
If I understood you correctly, your TyTN still works - it just cannot charge the battery, right?
Then, probably one of the cheapest (although not perfect) solutions is to get a cradle that can charge a battery outside the TyTN (like this one on eBay). You will have to power down your TyTN, remove the battery and put it in the cradle every other night or so, so it's not very convenient. But it's cheap. Maybe you'll want to keep this as "plan B" in your mind while you look for a more perfect solution.
Cheers
tadzio
elehcimo said:
Hi all,
I've a similar issue with any charger.
It happened first with car charger (one cradle with an usb output): sometimes it charged, most of all it charged only when power was off.
Now I cannot charge with any method. (those described here: battery charging problems)
Usb cable (it's not original), original power supply, even with the y cable.
When i try to charge, it drain battery (i tried with a new one) and amber led blinks slowly instead to be firmly light.
There's anything I can do?
It's a SPV M3100 buyed two months ago on ebay.
I tried also with two roms WM6 official release ITA ver and Schap's 3.54b ITA ROM WM6
radio 1.48
Any suggestions?
Click to expand...
Click to collapse
Hello!
I had also a battery charging problems with my MDA Vario II (TyTN; Hermes; HERM300):
1. Charging from the AC mains supply with the original miniUSB 5V charger: no problems.
2. Charging in the car with the non-original car lighter miniUSB 5V charger: it was charged only when the phone was OFF; no charging when the phone was ON.
3. Charging with the USB-miniUSB 5V cable connected to the notebook: it is charging only when the phone is OFF; no charging when the phone is ON.
So I asked myself: what is the difference between all these three cases? They are all miniUSB 5V power sources... And I found out an answer: It should be a matter of the USB current amperage.
Original AC miniUSB 5V charger delivered with the phone is 5V/ 1A. When I have bought the car 5V miniUSB charger with the 1A (one amper) amperage - there is no problem with car battery charging anymore... ;-) The phone is charged either way: ON or OFF.
But is it possible to charge the battery correctly from the notebook? I think not, because I have no influence on the current value from the 5V notebook USB.
Previously I had MDA Vario (Wizard): in this phone there were no battery charging problems... I wonder why the are some with the Hermes...
Take care,
Przemo
Przemo_55 said:
And I found out an answer: It should be a matter of the USB current amperage.
Click to expand...
Click to collapse
This is not correct. The problem is well understood and has been discussed several times.
The key is that your device tries to sense what it is connected to:
- if there is USB data traffic, it concludes that it is connected to a computer. It will then negotiate the current (power) it can draw from the USB port with that computer.
- otherwise, your device checks if pin 4 of the connector is pulled to ground. If yes, it concludes that is is connected to a dedicated USB charger, and starts charging, consuming as much power as it needs. This mechanism seems to work only if the device is on - and sometimes not even then (bug?). I guess the mechanism is implemented in software, so it can't function when it is off.
- otherwise, it doesn't know what it's connected to. Could be a computer in stand-by that didn't power off its USB ports or something. Your device concludes it may be unwise to start charging (could, for example, drain the other device's battery).
The cheap after-market chargers do not connect pin 4 to ground (pin 5), so your device doesn't charge. If you are really good with a soldering iron, try connecting pins 4 and 5 of the charger's USB connector, and you'll see that your device will start charging with it.
Cheers
tadzio
tadzio said:
If I understood you correctly, your TyTN still works - it just cannot charge the battery, right?
Then, probably one of the cheapest (although not perfect) solutions is to get a cradle that can charge a battery outside the TyTN (like this one on eBay). You will have to power down your TyTN, remove the battery and put it in the cradle every other night or so, so it's not very convenient. But it's cheap. Maybe you'll want to keep this as "plan B" in your mind while you look for a more perfect solution.
Cheers
tadzio
Click to expand...
Click to collapse
Thank youu Tadzio,
but my PDA is DEAD !
I still don't try to charge the battery separetly.
The reason is that when i carried the PDA to service i leaved the PDA and Battery: i dont wanto to believe that service dont check the battery !??!?
However , i will try to charge the battery separetly and then i will know you the outcome.
Thanx and Cheers
Therock-htc

C h a r g i n g !!!!!!

I have several 5V usb chargers and 2 car chargers the today I went for an hour drive with only the phone on and bluetooth after 1 hour the power had gone down 5% !!!! I tried another car charger going home for 1 hour result was the same.
I then plugged the Leo into a 240V to 5V no name usb charger at home for 2 hrs and the power went down 5%.
I then plugged it into the HTC USB charger (from my HD 1) and within a few minuits it was up 2%.
I know this is mad all the chargers are rated at 5V at 1A
I also note it will not charge when plugged into a PC usb.
The sounds crazy
does anyone have any ideas ?
Yes
I have an Idea - there is an option called "do not charge fom USB when phone is on"
(Or something like that) - on my device - the default was "on" -
meaning - it did not charge when it thought there is a data connection going on
Try searching for this option . . .
(If I find it - ill edit this post - and add the path to it)
Edit:
The path to this option is:
Settings -> menu->all settings -> system -> power->battery -> "When phone ..."
was your LED blinking when you plug the cable to your Leo, or it shows an amber light and stays permanently on?
If it's the former, your phone might have a problem with charging. It happens to my first set, and my set couldn't charge at all. The charger and battery were diagnosed to be ok, it was the unit itself that has a problem. Brought it back to the dealer and have it exchanged 1-1.
Light ON
Sorry forgot to mention the light was on continously on yellow. So it appears that it was charging.
The other setting was under settings -> System -> Power -> battery
When the phone is on do not charge the battery when conected to a PC and I do have this unchecked.
I also noticed this, Plugged mine into the car, and lost about 2% battery, was playing a game on the phone at them time... Its seems to take quite a while to charge
Car Charger
Has anyone charged you Leo sucessfully with a car charger if so could you provide me with the type of charger and the specifications.
Thanks
This May not necessarily be a fault with the device; i noticed the same functionality with my TG01; it would not initially charge on other same spec chargers except the one it shipped with.
Its possible that there is some sort of voltage requirement that these MicroUSB chargers require that are not being met by MiniUSB Adapters.
Expansys do a car charger for the device, there Product Code: 188895 not sure if its HTC branded or not.
Make sure your charger has at least 1A output. But, I still have the problem when charging too.
You need to look at how much Amperes your car charger has.
If its 0.7 amps like most cheap ones, no wonder. You need to use a 1 amp car charger minimum, especially if you have GPS and data connection running.
Hint: get a charger intended for use with a standard car GPS unit - they are typically 1.5 amps, and then you need a converter plug from standard to micro-usb.

Emergency charger and Tytn II

Hello, I've just bought an emergency charger for my Kaiser. It takes the power from an AA battery and gives the USB voltage in the output. It works great with my Mio A 501, but doesn't work at all with the Kaiser. I did a quick search and found this in a discussion about car chargers:
Are you using the HTC charger or an OEM one?
The HTC charger works all the time the OEM ones don't - the reason being that if you use a normal Mini USB cable, the handsets will only take a charge if there is an indication of a data connection (either than gprs or the cable) - otherwise it won't take a charge.
You can apparently solder a couple of wires together on a normal mini USB cable - but I wouldn't know where to start on that!
Click to expand...
Click to collapse
Now I've already heard of that, for example, a Play Station Portable needs the data wires in the USB grounded in order to charge. Is it the same with Kaiser? (putting three wires together isn't a big deal) Or is there an easier way how to make it charge?
So, I gave it a try and soldered the data wires with the ground wire. But when I try to charge the Kaiser, a yellow led starts to glow (which it didn't with the original cable) and, after a minute or two, the led goes off and Kaiser stops charging. When I turn the Kaiser off and then plug the cable in, the yellow led doesn't go off. However, when I turn Kaiser back on to check the battery meter (after about half an hour), I find out that the battery didn't take any charge at all. So, could anyone tell me what the problem is?
thanks, Mike
PS.: Adding some photos of the wires...
Probably because of the voltage...
Hey!
Have you checked the output voltage of this charger? Standard charger outputs 5V. If yours outputs less - the battery won't charge; if outputs more - you may "burn" your PDA chipsets
5V - 5.5V is safe range.
I found this on thinkgeek.
http://www.thinkgeek.com/gadgets/cellphone/b43f/
It says for iPhone, but sure it would work just fine with other devices that have issues.
had a same problem but using it in the car...
when i got my tytn2 i immediately bought a car charger and the salesman told it's an original one, said output 5v 1A.. when using in the car it charged for a minute or two and went off... than i got from ebay a micro usb 1A charger (used for iPhone too) and tried in the car-> it work flawlessly

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