QUOTE(Bend3r @ Mar 16 2009, 03:19 AM)
Hi all sifu,
I have a question here regarding the Car Charger.
I bought a brand-X car cigarette lighter type USB charger from a shop in low yat last weekend, it jz the plug-head with USB port at the back, i want to use the ORIGINAL USB cable that bundled with our HD with this cigi-type charger head.
Since the car cigi socket output is DC12V-24V, and our HD required DC5.0V ± 0.5A, i wonder whether the combination of the charger and USB cable usage will be harmful to our HD? I don't want my HD to get burn because of the miss-use of the charger voltage...
Kindly share your idea and experience with me, as i need to travel outstation and need to use my HD as my sat nav.
Thanks in advanced!
If your Brand-X car charger is conformed with USB port, then surely it will have 5V output. That's the USB Standard!

But the charging rate maybe lower than 0.5A or EXCEEDING 0.5A! So you can surely use it to charge your phone, but maybe charge your phone at slower rate. If it exceed 0.5A charging rate, then it is a RISK to your phone!!!
"DC5.0V
± 0.5A", you sure boh? why got ± on current output?
I have compared with the wall-plug charger, the car charger, USB/MP3-to-FM car dongle and laptop USB port, the wall-plug charger has charging current about 0.6A, but the car charger only at around 0.35A. USB/MP3-to-FM car dongle around 0.2A, and my laptop's USB port can only charge around 0.25A. The discharge rate however, is around 0.2A with backlight on. Our battery is 1350mAh, or 1.35Ah, so if I left the backlight always on, then it would last only about 6.5 hours. If I use USB/MP3-to-FM, I can't really charge the phone at all while GPS-ing!
Just maths