HTC Desire car charging troubles

Forums › Android › HTC Desire car charging troubles

steveclifton

36 posts

Geek

#64537 17-Jul-2010 12:27

Hi

Just having some troubles with charging the Desire in the car,
I have a 1a Belkin car charger, and i am using the cord that came with the phone, but its barely charging, and when i start using it, the battery goes down?

Any suggestions ?

Thanks

Giggs

252 posts

Ultimate Geek

#352665 17-Jul-2010 14:03

Sounds like the phone is not getting the 5v it needs.

Have you checked the lighter socket/battery with a multimeter?

steveclifton

36 posts

Geek

#352668 17-Jul-2010 14:18

Yea its putting out 5.16vdc?

Not sure how I'd measure the current draw

Giggs

252 posts

Ultimate Geek

#352677 17-Jul-2010 14:37

DO you mean the socket is only putting out 5v? It should be 12v?

steveclifton

36 posts

Geek

#352681 17-Jul-2010 14:42

Na 14 from the socket and 5 from the usb

kiwitrc

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#352682 17-Jul-2010 14:46

You need to eliminate the various things that are causing the problem. First make sure your cable works say off a PC or the charger. Then try the Belkin and cable in another car ciggie lighter.

I had a problem with the Belkin I had in that it didnt fit into the socket properly in my Hilux. They are not tapered like some adaptors and dont fit into all lighter sockets.

steveclifton

36 posts

Geek

#352684 17-Jul-2010 14:48

I plugged the cable into my iPhone wall charger and the same thing. But when I plug it Into the HTC charger it charges fast

Does the battery somehow know that its not an HTC charger or something?

steveclifton

36 posts

Geek

#352685 17-Jul-2010 14:49

Plugged into my laptop it charges very slow aswell

Only charger that works is the HTC one? Very odd

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Giggs

252 posts

Ultimate Geek

#352689 17-Jul-2010 15:24

The HTC charger is rated at 1A (at least mine is) but a USB port only gives you a maximum of 500mA so the wall charger should in theory be faster.

What rating is the Iphone wall charger?

steveclifton

36 posts

Geek

#352696 17-Jul-2010 15:33

5v 1a

It's the weirdist thing, looking at getting a HTC car charger from clove if I can't sort soon :-S

Stu

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#352806 17-Jul-2010 20:23

I'm using a two different 1A mains chargers (neither of them the original HTC), a Belkin 1A car charger and occasionally my notebook. Haven't noticed any issues with either method as far as charging goes. Do you run an app in the car that might be draining the battery more than it should? Have noted comments in the Market regarding some apps chewing though juice fast.

steveclifton

36 posts

Geek

#352807 17-Jul-2010 20:26

Hey
Na I am just using Twitter or Facebook or on the net, just basic stuff
Maybe because the battery is new it needs a few charges before it comes right? Which won't take long, the battle life is not great atm!

richms

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#352815 17-Jul-2010 21:20

Not all chargers are the same, some just give out 5v and nothing to signal its a charger, so things that actually adheire to the USB spec will not charge. USB charging spec says 200 ohms between the 2 data pins, apples made up spec is something different.

Richard rich.ms

steveclifton

36 posts

Geek

#352817 17-Jul-2010 21:25

Ok, that sounds productive

What car chargers are people using with the desire ?

numfarr

329 posts

Ultimate Geek

#353030 18-Jul-2010 17:34

See this thread, you need to short the two middle pins of the USB cable together for it to charge at 900mA.