Using Desire as SATNAV with car charger

[kaushal101]

I am using my ipod car charger (with USB connection, purchased from ebay) with Desire's micro USB cable.

I tried this during a 3 hr trip.

I was using the Desire for navigation (Google SATNAV) during the trip. So, GPS was turned on and the screen was on as well.

What I observed was, even though the phone was charging (using the car charger), the battery was actually loosing the life.

Meaning, GPS and screen was consuming battery faster than the car charger was able to charge it.

While charging, the status of batter was displayed as "Charging (AC)".

I am trying to understand
1. if this was because of not using proper car charger,
2. or if something is wrong with my battery,
3. or if that's how Desire battery behaves in which case it doesn't make it suitable for a Tomtom replacement.

Any thoughts?

 

[digitalxni]

Just saw this...

From gav28uk:

Here's a tip about charging your Desire using the in-car cigarette lighter socket together with a USB lead. If you find that your Desire isn't charging correctly and even worse losing charge whilst plugged in, check out this thread http://androidforums.com/htc-desire/75062-charging-usb-ac-differences.html

You may be using a USB socket that will only allow up to 5v 500mh output. You need a USB socket that can provide 5v 1000ma (1amp). The above thread will reveal all you need to know, bottom line, the two data pins on the car USB socket need to be shorted out, for the Desire to believe it has an AC charge and therefore draw 1Amp.

 

[wuthton]

Just saw this...

It needs to be a usb charger designed for HTC phones. The phone draws 500ma from a computer usb but in can't tell the difference when plugged into a standard usb charger. The official chargers are wired to tell the phone that 1amp is available.

If, when you plug your phone you are given the mounting options of charge only, disk drive etc, then your phone is only charging at 500ma because it thinks it is connected to a computer.

 

[adam1985]

Hi i am using a third party in car charger that I got on ebay and it works fine when I use my Desire as a SATNAV with Google Navigation. Charger only cost

 

[jred7469]

I got mine for

 

[kaushal101]

Hi i am using a third party in car charger that I got on ebay and it works fine when I use my Desire as a SATNAV with Google Navigation. Charger only cost

 

[veryjiggy]

I am using the 1.95 quid one as well, and works beautifully.
The item number on ebay is 170449628900.

 

[puppy]

I'll have one of those thank you very much!

I am using the 1.95 quid one as well, and works beautifully.
The item number on ebay is 170449628900.