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Old June 4th, 2010, 03:33 AM   #101 (permalink)
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I ordered the same one. Just had the email to say it was shipped.
All being well I should get it in a day or so

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Old June 6th, 2010, 04:32 PM   #102 (permalink)
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My £5 Tesco car charger shows as AC charging and it does increase the charge level when my Desire is running Google Navigation and Trapster. But yesterday I noticed the status light flashing and the charge level dropping. This was during a 2 hour drive in hot and sunny conditions. The phone was very hot to the touch and I wonder if this was responsible for the net discharging?

Ian
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Old June 6th, 2010, 04:36 PM   #103 (permalink)
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Same happened to me, different charger, but noticed the status light flashing amber and green. Felt the phone and it was fairly hot. Not sure if it was a combination of charging and navigation going at the same time but like you it was a damn hot day.
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Old June 6th, 2010, 04:51 PM   #104 (permalink)
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Just to say, be careful with cheapo chargers from Ebay.

see my video for what happened to my touchscreen on my HTC desire

YouTube - HTC Desire - Screen problems with Charger

doug
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Old June 7th, 2010, 03:23 AM   #105 (permalink)
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Quote:
Originally Posted by kingqueen View Post
Just to say, be careful with cheapo chargers from Ebay.

see my video for what happened to my touchscreen on my HTC desire

YouTube - HTC Desire - Screen problems with Charger

doug
Surprised you didn't get any response to this - very interesting.

What is that touch screen test app you were using?

Ian
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Old June 7th, 2010, 06:44 AM   #106 (permalink)
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Quote:
Originally Posted by ifb-online View Post
Surprised you didn't get any response to this - very interesting.

What is that touch screen test app you were using?

Ian
It is Multitouch Visualizer, by Luke Harrison, in the Android Market. It's meant to demonstrate the limitations of the design in identifying the location of both fingers when doing multi-touch but it's quite good I think as a simple tester.

I've thrown that charger away! In any case it was only doing "USB charge" instead of "AC charge" and I suspect it is a low-quality piece of dangerous crud.

Goodness knows how precisely a charger can stuff up a screen like that.

doug
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Old June 7th, 2010, 02:28 PM   #107 (permalink)
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I know I'm of no help (sorry) but which case is that you are using? :-P
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Old June 7th, 2010, 04:06 PM   #108 (permalink)
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Quote:
Originally Posted by ifb-online View Post
My £5 Tesco car charger shows as AC charging and it does increase the charge level when my Desire is running Google Navigation and Trapster. But yesterday I noticed the status light flashing and the charge level dropping. This was during a 2 hour drive in hot and sunny conditions. The phone was very hot to the touch and I wonder if this was responsible for the net discharging?

Ian
Quote:
Originally Posted by masherthemash View Post
Same happened to me, different charger, but noticed the status light flashing amber and green. Felt the phone and it was fairly hot. Not sure if it was a combination of charging and navigation going at the same time but like you it was a damn hot day.
This is exactly what I have experienced. I am running an app that shows the battery charge in % as well as the temp and I have had two ocassions when the Desire has been sitting in the cradle in full sunlight, running Google Navigation and has shown up as 'overheating'. It gets up to about 45 degs and then overheats. It only is a problem on a hot day.

Might have to buy one of the holders that sits on the air vent and let the ac cool it down.
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Old June 7th, 2010, 04:40 PM   #109 (permalink)
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Crikey that is bad! Also bad news for me because I need to carry a spare to get me through the day and am after something that will charge the battery on its own rather than in the phone....
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Old June 7th, 2010, 06:37 PM   #110 (permalink)
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Originally Posted by fast eddy View Post
I know I'm of no help (sorry) but which case is that you are using? :-P
Cheapo silicone case from Ebay. I've drilled two holes through it to attach a lanyard.
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Old June 8th, 2010, 02:39 AM   #111 (permalink)
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Which is the best in car charger? I got one from 'super e-trader' and its RUBBISH, just off and on all the time!!!
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Old June 8th, 2010, 03:12 AM   #112 (permalink)
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Default Re: Charging: USB and AC differences

Quote:
Which is the best in car charger? I got one from 'super e-trader' and its RUBBISH, just off and on all the time!!!
Get the original version from htc

Sent from my HTC Desire
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Old June 17th, 2010, 03:49 PM   #113 (permalink)
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So, summed up:
- If a generic micro-usb charger is used its got to be 1A.
- If the HTC Official charger is used it will work fine.
- If a USB adaptor is used with the HTC data cable, then at some point the data lines must be linked to charge.
- If a USB adaptor is used with a generic/power micro-usb cable, then it should work fine.

So realistically, the choices are:
Official Charger:HTC: Accessory store: Pocket PC Power Adaptors + Batteries: HTC Desire Car Charger with USB/micUSB Cable CC C200 (1A/5V): Description

Generic 1A Charger off ebay:
Car Charger for HTC Desire on eBay (end time 13-Jul-10 00:57:47 BST)

USB Adaptor:
Micro DC to USB Adaptor Home Car Maplin


Im tempted to get the official charger tbh.
Although this has caught my eye:
HTC: Accessory store: Pocket PC Vehicle Kits: HTC Desire Car Upgrade Kit CU S420: Description
However it doesnt say if it functions like the N1's version of it, where i cant use BT to transfer music/calls to my cars stereo as it uses its on BT for its version of a handsfree....
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Old June 20th, 2010, 05:00 AM   #114 (permalink)
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Quote:
Originally Posted by pms View Post
What is different in this charger than any other 1A cigarette charger? I have one 1A cigarette charger and still when running the GPS the battery is discharging instead of charging.... Is this charger somehow different from any other 1A charger?

Heres the thing, armed with a number of cigarette USB adapters i have been having trouble with charging of the phone and using it as a sat nav. It seems that wether you are using the unit as a sat nav on charge or battery it gets hots this can only be down to the fact that the processor is working hard updating the images of the map the GPS is also working and the battery draw is heavy. All these things in a small unit will cause heat build up

I tried a number of different adapters along with a new lead that i had bought and the results were pathetic. So i went back to basics comparing charging time with the original lead and charger and the new lead. The original HTC lead seemed to charge fairly quickly but the new lead did not (it was cheap). The same results were obtained with another usb 240 volt adapter.

So using the original lead i found a car charger that seemed to just charge the battery whilst listening to music but discharged when using the sat nav. In the mean time i purchased a retractable lead which has charging only capability, this worked better as the part that plugs into the charger is smaller and doesn't catch on the gear lever when in 5th gear. I plugged this into the desktop charger and the charging results were quicker than normal.

I took this lead and the best charger and finished the charging cycle in the car whilst the wife played DJ. The unit charged quickly, after charging had finished the adapted cooled down indicating that the power output had decreased in accordance. The next part of the journey, albeit it short was with the sat nav going and the music playing and it seemed to be without problem, keeping the battery fully charged

So it was in the lead, some further reading on WIKI Universal Serial Bus - Wikipedia, the free encyclopedia seems to confirm the differences with charging rates of devices

You do need an adapter that can supply 1000ma and to be on the safe side make sure it is a switch mode adapter so that over charging does not occur.

I have yet to do further testing but early results are indicating success
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Old June 20th, 2010, 05:05 AM   #115 (permalink)
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I have been soldering all my mains and car charger that do not work with the desire, according to the guide on this forum , I have been soldering pin 2 and 3 together of the usb connector and that does make them work with the desire, I bought a mains/usb charger and i checked it out with a test meter and it already had usb pin 2 and 3 joined.
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Old June 28th, 2010, 10:36 AM   #116 (permalink)
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Question

I just bought a cheap USB charger marked "1200mA". Of course it only accomplished "Charging (USB)".

Assuming the charger is actually capable of delivering 1A (sustained), I've hacked together a short USB-USB cable where I've shorted out the 2&3 wires. This works just fine, the phone now reports "Charging (AC)" and actually does charge while simultaneously streaming from Last.fm and running Google Navigation with the screen on full blast.

Code:
car      phone
1------------1
2----,-------2
3----'-------3
4------------4
But then I thought, I wonder if this is in any way damaging to the phone, and that maybe I should leave the phone-end of the data wires unconnected?

Code:
car      phone
1------------1
2----,     --2
3----'     --3
4------------4
I could open up the cable and experiment, but I'm hoping somebody here will know. So ... Any advice on this?
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Old June 28th, 2010, 11:14 AM   #117 (permalink)
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Quote:
Originally Posted by KlaymenDK View Post
But then I thought, I wonder if this is in any way damaging to the phone, and that maybe I should leave the phone-end of the data wires unconnected?

Code:
car      phone
1------------1
2----,     --2
3----'     --3
4------------4
As I understand it, with that cable the phone will think that's a PC connection and limit itself to drawing 500mA. i.e. it's the phone which detects the short, and uses it as a (dumb) signal that the charger is capable of higher currents.
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Old June 28th, 2010, 03:21 PM   #118 (permalink)
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@KlayenDK Whatever you do, don't plug that modified cable (with shorted-pins 2+3) into a laptop/PC, that could well and truly knacker your computer!!! That is why it would be best to modify the Car charger module, rather than the cable. Less chance of a cock-up in months to come when you desperately need a USB cable ;-)
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Old June 28th, 2010, 04:22 PM   #119 (permalink)
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I have the Maplin 1A charger with the centre pins joined so it shows AC Charging on the Desire. I thought all would be well, how wrong I was...

I plugged the Desire into the car charger with it showing 98% charge (AC charging), turned bluetooth and GPS on and arrived 2 1/2 hours later with it showing 9% charge .

Hmmm. I'm thinking "first disappointment with Desire" thread. However I thought I'd do a quick test first...

So I plugged the Desire into the HTC mains charger, turned on bluetooth and GPS, connected the headset, set a route in CoPilot and left it on the window ledge to get a satellite fix. It started with 52% battery and 1 1/2 hours later shows 88% (it is bloody hot though).

Conclusion; even though your usb charger may be showing AC Charging it might not be providing anywhere near 1A (and maybe only little more than 500mA).

I'm off to buy a genuine HTC car charger and if it don't power bluetooth and GPS its going back

As an aside does anyone know of an app the displays the charging current?
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Old June 28th, 2010, 04:38 PM   #120 (permalink)
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Quote:
Originally Posted by candlerb View Post
it's the phone which detects the short
Quote:
Originally Posted by gav28uk View Post
@KlayenDK Whatever you do, don't plug that modified cable (with shorted-pins 2+3) into a laptop/PC
Don't worry mate, that's not happening. One, it's ridiculously short; two, it's clearly marked.
But what you to are saying is that the cable should be modified the other way around, then?
Code:
car      phone
1------------1
2--       ,--2
3--       '--3
4------------4
Quote:
Originally Posted by speedycolzalez View Post
As an aside does anyone know of an app the displays the charging current?
Not as such, but for instance JuicePlotter will show (a) a rising graph, where you can sort of judge from the steepness, and (b) a widget with charge time remaining, which should be half as much (if even that) on AC than on USB.
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Old June 29th, 2010, 04:37 AM   #121 (permalink)
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@KlaymenDK, it doesn't matter where the short on pins 2+3 occurs, they just need to be shorted out. I have those pins shorted out within the car charger itself. The USB cable still has pins 2+3 connected, so it would be like:-

Code:
car      phone
1------------1
2--,---------2
3--'---------3
4------------4
IHTH
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Old June 29th, 2010, 04:40 AM   #122 (permalink)
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Quote:
Originally Posted by speedycolzalez View Post
I have the Maplin 1A charger with the centre pins joined so it shows AC Charging on the Desire. I thought all would be well, how wrong I was...

I plugged the Desire into the car charger with it showing 98% charge (AC charging), turned bluetooth and GPS on and arrived 2 1/2 hours later with it showing 9% charge .
OK first question, how hot was the Phone? There appears to be some form of thermal cut-out that stops the phone charging when the phone reaches a certain temperature. I would imagine that was the reason the Phone was discharging rather than charging. Could this be the reason?
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Old June 29th, 2010, 05:16 AM   #123 (permalink)
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Quote:
Originally Posted by gav28uk View Post
Quote:
Originally Posted by KlaymenDK View Post
Quote:
Originally Posted by gav28uk View Post
Whatever you do, don't plug that modified cable (with shorted-pins 2+3) into a laptop/PC
But what you to are saying is that the cable should be modified the other way around, then?
Code:
car      phone
1------------1
2--       ,--2
3--       '--3
4------------4
it doesn't matter where the short on pins 2+3 occurs, they just need to be shorted out.
Well my thought was that, using this last variant, I would not risk frying a pc... ? I just want to make a cable that's as safe as possible (as well as document here what that is).
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Old June 29th, 2010, 06:01 AM   #124 (permalink)
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Quote:
Originally Posted by KlaymenDK View Post
Not as such, but for instance JuicePlotter will show (a) a rising graph, where you can sort of judge from the steepness, and (b) a widget with charge time remaining, which should be half as much (if even that) on AC than on USB.
Cheers, I'll give it a go.

Quote:
Originally Posted by gav28uk View Post
OK first question, how hot was the Phone? There appears to be some form of thermal cut-out that stops the phone charging when the phone reaches a certain temperature. I would imagine that was the reason the Phone was discharging rather than charging. Could this be the reason?
The phone was actually hot while mains charging. I didn't check the actual temp but I tend to think it was 'normal' given it was running bluetooth and GPS at the time. I'll give it another go once I've installed JuicePlotter.

It runs cool in the car as it sits by the centre vent which I have directed at it (much to the annoyance of any passengers )
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Old June 30th, 2010, 05:45 PM   #125 (permalink)
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Quote:
Originally Posted by jabtas View Post

The interesting thing is, that the supplied charger say output 600 - 750ma


I just did a 35min journey, Google Navigation + GPS + Auto screen brightness
According to the battery graph produced by Battery Snap, the charge state rose from 64% to 69% in that 35mins
HTC
I brought possibly the same cradle kit, as that lead looks like the same sticker as mine.
FLASH SUPERSTORE PREMIUM SUBLIME CAR HOLDER/KIT: Amazon.co.uk: Electronics & Photo

Anyway after reading this, i plugged the desire into the car and loaded up NDrive. I didnt drive anywhere but i left it in the car for 30mins with the screen on and ndrive open, BT on and connected to headset.
30mins - battery charged 7%

It said AC charging.

I was using a little CIg lighter to USB socket thing, which said 1000mA on it (USB charging), although using a cheapo usb cable and the HTC one, the battery de charged when using google nav. I do wonder if the cheap cable was USB 1.0 though.
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Old July 2nd, 2010, 08:46 AM   #126 (permalink)
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Quote:
Originally Posted by speedycolzalez View Post
I'm off to buy a genuine HTC car charger and if it don't power bluetooth and GPS its going back
So, I bought the HTC car charger from the HTC Accessories site (expensive but guaranteed genuine - the site is run by Expansys btw) and having installed JuicePlotter tried it on a short trip today.

Charge went from 76% to 85% in 40 minutes while running GPS and Bluetooth with the screen on full brightness.

Well worth the extra money to get the genuine item imho.

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Old July 4th, 2010, 06:31 AM   #127 (permalink)
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Hi everyone.

I like others have been following this thread for a while and have come to the conclusion: get a proper HTC car charger.

There USB to AC converter from maplins that requires the soldering for example is circa £6.

For £8 you can have a genuine HTC charger Here .

I've bought one as I cant be doing with the coiled leads you get with most chargers. My Cig lighter is behind my drivers seat and so a coiled lead will not reatch the desire attached to the windscreen. Therefore I need to part that fits the cig lighter and a straight lead. Buying the 2 part HTC job will enable me to do this.
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Old July 4th, 2010, 06:38 AM   #128 (permalink)
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Quote:
Originally Posted by iammrpotato View Post
Hi everyone.

I like others have been following this thread for a while and have come to the conclusion: get a proper HTC car charger.

There USB to AC converter from maplins that requires the soldering for example is circa £6.

For £8 you can have a genuine HTC charger Here .

I've bought one as I cant be doing with the coiled leads you get with most chargers. My Cig lighter is behind my drivers seat and so a coiled lead will not reatch the desire attached to the windscreen. Therefore I need to part that fits the cig lighter and a straight lead. Buying the 2 part HTC job will enable me to do this.

I have the official HTC car charger and it has got a coiled lead.

If you look on the HTC site even the pictured one has a coiled lead,maybe there are 2 types knocking about,or maybe the Ebay ones aren't official HTC chargers?

HTC: Accessory store: Pocket PC Power Adaptors + Batteries: HTC Desire Car Charger with USB/micUSB Cable CC C200 (1A/5V): Description
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Old July 4th, 2010, 08:19 AM   #129 (permalink)
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Im having a right mare getting this thing working.
Purchased an official HTC charger, fitted it in paralell with the existing cig lighter. Worked for 10mins then stopped working.
Took the center console apart, and apart from the connector on my cig splitter being broken, it now seems that the brand new HTC charger i got is broke! Not a clue how thats happed to be quite honest. It cant have blown surely?
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Old July 5th, 2010, 05:26 AM   #130 (permalink)
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EDIT... Answered my own question by having a proper search.... looks like no

I wonder if anyone can help

I'm thinking of buying one of these Micro DC to USB Adaptor : InCar Power Adaptors : Maplin as I like the fact you can leave it in the 12V socket all the time. Has anyone else tried one and if so does it show as Charging AC??

Thanks...
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Old July 5th, 2010, 05:46 AM   #131 (permalink)
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Quote:
Originally Posted by nacatomi View Post
EDIT... Answered my own question by having a proper search.... looks like no

I wonder if anyone can help

I'm thinking of buying one of these Micro DC to USB Adaptor : InCar Power Adaptors : Maplin as I like the fact you can leave it in the 12V socket all the time. Has anyone else tried one and if so does it show as Charging AC??

Thanks...
You can have mine. I just need to fish it out of the bin.

You need to join the centre pins for it to show Charging AC. Even then it doesn't supply enough current to charge when running bluetooth and gps.

Far better to spend the money on the official HTC charger imho.
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Old July 5th, 2010, 05:51 AM   #132 (permalink)
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Originally Posted by speedycolzalez View Post
You can have mine. I just need to fish it out of the bin.

You need to join the centre pins for it to show Charging AC. Even then it doesn't supply enough current to charge when running bluetooth and gps.

Far better to spend the money on the official HTC charger imho.
Thanks for the reply... I think I probably will end up with the official HTC charger. I just liked the design of this one as it could be left in because my socket is down near the handbrake and gear stick so anything too big gets knocked about.
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Old July 5th, 2010, 06:12 AM   #133 (permalink)
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Is Belkin's Micro USB In-Car Charger any good for the Desire:

Play.com (UK) - Mobile - Free Delivery

Assuming it correctly outputs enough power for the Desire, the only thing with it is you need to use the USB cable that came with the phone.
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Old July 5th, 2010, 06:52 AM   #134 (permalink)
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Originally Posted by mjpartyboy View Post
Is Belkin's Micro USB In-Car Charger any good for the Desire:

Play.com (UK) - Mobile - Free Delivery

Assuming it correctly outputs enough power for the Desire, the only thing with it is you need to use the USB cable that came with the phone.
I've had a search through the desire forum and have found one post where somebody suggested that it worked... Can anyone confirm?

EDIT.. Well I've just ordered one for £5.70 on PlayTrade will update when I have more news
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Old July 5th, 2010, 08:52 AM   #135 (permalink)
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Originally Posted by speedycolzalez View Post
Quote:
Originally Posted by nacatomi View Post
You need to join the centre pins for it to show Charging AC. Even then it doesn't supply enough current to charge when running bluetooth and gps.
That's exactly what I've got (for about £8 (with a different branding that I don't remember (but I do remember that it was rated as 1200mA (which is why I figured it could bear the load of a data-shorted hack)))).
I never use Bluetooth, but it is capable of charging a Desire that's streaming Last.fm while running Google Navigate. YMMV.
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Old July 7th, 2010, 12:44 PM   #136 (permalink)
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Originally Posted by nacatomi View Post
I've had a search through the desire forum and have found one post where somebody suggested that it worked... Can anyone confirm?

EDIT.. Well I've just ordered one for £5.70 on PlayTrade will update when I have more news
Well it's arrived and I've tried it. Still shows as charging USB but seems to hold the charge about level when driving and using copilot. I might try and modify a cable for use in the car cos I really like the charger.
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Old July 19th, 2010, 06:15 AM   #137 (permalink)
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OK I signed up to this forum simply because I am having the same difficulties, and the situation is driving me crazy. Here is my story so far;

Had a cheap 500mA car charger. When using navigation I got the message about insufficient charging current.
Learnt about charging current over USB, and that 1A is required (as supplied by the mains wall charger) to charge phone whilst running thirsty apps.
Bought a (cheap) 1A USB car charger from ebay.
It showed up, I plugged the phone in.....it still said USB charging.
I thought it was a fault of the cheap Hong Kong tat I had bought from ebay. (Wouldnít be the first time).
So I went out and bought the Belkin one many of you are referring to in your posts.
Again it was off ebay, but it came with all the right Belkin crazy OTT packaging and documentation so if its a fake, theyíve (the bootleggers) wasted a lot of their margins on packaging which I find hard to believe. How much money can they be making only asking £5 for this thing? Pretty sure itís genuine.
OK so I plug this Belkin effort into my car, hook up the phone, but it STILL says USB charging.
Now Iím mad.
I read somewhere about the shorting of the data pins to tell the phone it is not plugged into a PC, and its therefore safe to draw the full monty.
(The phone decides what current it draws, so donít worry about too much current. Itís too much voltage that could fry it.)
Got my tester out, and Belkin have in fact shorted the data pins.
I have tried using all manner of proven data cables with the same result. (The HTC one supplied with the phone, a Nokia one that charges AC from a spare HTC wall charger at work.....)
Now comes the twist.
Out of frustration I tried this charging cable that came with a Proporta Emergency Charger battery pack. You know, the ones that come with a variety of charging tips for all types of phone/PSP/mp3 player etc?
So this charging cable has a tip to accept any of these different adapters, but it only has TWO contacts similar in construction to a standard nokia tip from the 90ís. There is no facility for it to connect to the data pins.
I attach the micro USB tip, and plug my phone into my Belkin charger.
AC charging!!! WTF. Went for a test drive with navigation, bluetooth, GPS, 3G and backlight all cranked up to 11 and the media player belting out tunes into my car stereo line-in.
Battery went from 95% to 100% in 10 minutes. It stayed there too.
Out of curiosity, I fished out the Hong Kong tat charger.....yep AC charging as long as I use this Proporta charging cable. USB charging if I donít.
Tested the data contacts on this micro USB charging tip. NOT shorted out. Open circuit when out of the car charger. Admit I have not tested it plugged into the car charger.
It is worth noting that when charging my phone from this emergency battery pack (output of 700mA), the phone says AC charging regardless of which cable I use!
Oh and Iíve tried shouting at it. Makes no difference.
I really hope Iím just being special (), and that the solution is staring me in the face (again, wouldnít be the first time) so Iím interested to hear theories.

Anyone able to help me with this mystery would be qualified to help me with a couple of other conundrums;

1. Where do all the biro lids go? There must be a mountain of the things somewhere. Anyone seen it?
2. What do women REALLY want? (hint: Itís not cake. Tried that. She still moaning.)

Thank you please.
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Old July 19th, 2010, 06:26 AM   #138 (permalink)
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Well it's arrived and I've tried it. Still shows as charging USB but seems to hold the charge about level when driving and using copilot. I might try and modify a cable for use in the car cos I really like the charger.

I've actually since shorted the data pins and it still showed as charging USB but I was using a crappy £1.30 cable from eBay. However as a last go I tried the official HTC cable from my wall charger and BANG... Straight to charging AC!!!

So I'm not sure if shorting the data pins was necessary but definitely a combo of that and HTC cable no allows me to increase charge while navigating with Copilot and listening to music through Spotify(Streaming and Offline) and also I have a nice usb charger that permanently sits in my 12V socket.

Happy Days
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Old July 20th, 2010, 03:45 AM   #139 (permalink)
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OK sussed it. Yes, I was being special.

The Belkin car charger DOES NOT have the data pins shorted like I originally thought. I re-tested last night and I reckon my test probes were shorting out on the outer metal of the USB plug giving me a false reading.

I opened up a spare USB cable, peeled back the screen, and clipped and twisted together the white and green cables at the phone end. Left them alone at the other end.

Charges AC now! Will be leaving this cable in my car so I do not forget and plug it into a pc. Mind you, the bright yellow insulation tape I have used to patch the cable back up should help serve as a clue!

Battery temp when charging never got above 30 degrees on my 30 minute drive into work, and charge went from 70% to 90%.

That'll do.
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Old July 20th, 2010, 04:49 AM   #140 (permalink)
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Originally Posted by nacatomi View Post
I've actually since shorted the data pins and it still showed as charging USB but I was using a crappy £1.30 cable from eBay. However as a last go I tried the official HTC cable from my wall charger and BANG... Straight to charging AC!!!

So I'm not sure if shorting the data pins was necessary but definitely a combo of that and HTC cable no allows me to increase charge while navigating with Copilot and listening to music through Spotify(Streaming and Offline) and also I have a nice usb charger that permanently sits in my 12V socket.

Happy Days
I'd ordinarily say that's weird but having had problems with cheap eBay cables myself I'm not surprised.

It might show AC charging but make sure its delivering sufficient current to keep the Desire charged. I ditched my Maplin's charger and went for the official HTC one because which it was showing AC Charge the Desire was still losing charge with GPS and Bluetooth on.
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Old July 20th, 2010, 05:19 AM   #141 (permalink)
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Originally Posted by speedycolzalez View Post
I'd ordinarily say that's weird but having had problems with cheap eBay cables myself I'm not surprised.

It might show AC charging but make sure its delivering sufficient current to keep the Desire charged. I ditched my Maplin's charger and went for the official HTC one because which it was showing AC Charge the Desire was still losing charge with GPS and Bluetooth on.
It's definitely good enough to put charge in. Not really used BlueTooth much yet but as I said I have used it while running CoPilot and Spotify (Streaming & Offline) at the same time which previously killed my battery but now it increases charge at a fair old rate. 10-15% increase in my 15-20 min car journey to work. And seeing as it now permanently sits in my 12V socket as its so small I'm very happy, much better than one of the ones that stick out loads. I mentioned before the 12V socket on a 307 is not in the best place to not get in the way when changing gears and using the handbrake.

Now just need to pretty up the cable run ready for when I get me xcarlink system and brodit mount.

I'll know more about all the above + Bluetooth as well after I've fitted all that.
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Old July 24th, 2010, 12:23 PM   #142 (permalink)
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This thread has been abundantly helpful in clarifying some of the mysteries of Desire charging for me - but I realised something else was factoring-in with my car.

The Vectrashed I drive (98) will charge my Desire as 'AC' if I'm driving along BUT if I park and take out the keys it reverts to just 'Charging' (showing a different colour on the battery graphing software too).

This is the same with 2 diff. Lighter/USB adaptors and 2 diff USB cables (including the HTC supplied one).

It's not uncommon for cars to supply lower current when the ignition is off (to avoid draining the battery I guess))???
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Old July 24th, 2010, 04:06 PM   #143 (permalink)
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It's not a 'nice designed feature', lol. Your battery's probably knackered, or getting close. When the engine's running it produces a voltage generally higher than the battery (so that current can flow into the battery and charge it). When the engine's off then all you've got is the battery voltage, which sounds like it's low enough to trigger the Desire to decide to draw less current.

Try your phone/charger in another (decent, lol) car to confirm, then get another car.
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Old August 5th, 2010, 02:15 PM   #144 (permalink)
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Originally Posted by ru' View Post
It's not a 'nice designed feature', lol. Your battery's probably knackered, or getting close. When the engine's running it produces a voltage generally higher than the battery (so that current can flow into the battery and charge it). When the engine's off then all you've got is the battery voltage, which sounds like it's low enough to trigger the Desire to decide to draw less current.

Try your phone/charger in another (decent, lol) car to confirm, then get another car.
Nothing wrong with the car (alternator and battery are near-new) - I've seen this in other cars too, devices which work OK when the engine is running, don't work with the engine off.

The plethora of crap people insert into the cig. lighter these days (fans, under-dash lighting and allsorts) clearly caused many a dead battery, hence the diff. voltages.

I tested the Desire in a 'slightly nicer car' and got the same result BTW - the 'slightly nicer car' was a Bentley Continental GT and it's battery is fine too
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Old August 12th, 2010, 11:14 AM   #145 (permalink)
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Has anyone tried a charger from Halfords ?
I've got some vouchers so I may as well use some up.
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Old August 12th, 2010, 02:32 PM   #146 (permalink)
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Has anyone tried a charger from Halfords ?
I've got some vouchers so I may as well use some up.
Just to confirm the Halfords branded mini USB charger works
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Old August 17th, 2010, 10:39 AM   #147 (permalink)
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great work with the usb cables have enjoyed reading it. usually i would strip usb cables down to make them work correctly in my car but im gonna buy the proper htc charger thanks to the links ive seen posted on here. been good reading though enjoyed very much.
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Old August 17th, 2010, 11:31 AM   #148 (permalink)
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I use a multi adapter I got from Asda for £5. It comes with lots of attachments for different devices, which to me are useless, & also another wall plug so I now keep one at work.

The in car USB shows as AC & charges the phone when using Google Navigation.

So all in all i'm a very happy bunny!!
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Old August 19th, 2010, 07:52 AM   #149 (permalink)
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Quote:
Originally Posted by KlaymenDK View Post
But what you to are saying is that the cable should be modified the other way around, then?
Code:
car      phone
1------------1
2--       ,--2
3--       '--3
4------------4
Yes, that's exactly what I did, it works just fine.
If you do not want to open your car charger, you can always create a male to female adapter that shots D+ and D- on the female side like the one in the attached picture
Attached Images
File Type: jpg usb_charger_force.jpg (18.9 KB, 45 views)
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Old August 19th, 2010, 12:03 PM   #150 (permalink)
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Quote:
Originally Posted by johnpeat View Post
Nothing wrong with the car...
Sorry, I just hate vectras they're complete rubbish

Quote:
Originally Posted by johnpeat View Post
... (alternator and battery are near-new) - I've seen this in other cars too, devices which work OK when the engine is running, don't work with the engine off...
Yep, even with new batteries the voltage will be lower unless the alternator is 'charging'.
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