Originally Posted by coriron
if it helps at all i also use a micro usb cable from a Nokia without any issues so i would assume the pinout is the same and standard.
Thanks coriron! That's good to know
If somebody needs service manuals: http://www.mikechannon.net/page1.html
(nearly all HTC devices, but Desire and Nexus One)
If anybody has the servie manual for Desire/Bravo or even N1 pls post it here.
The main problem here is, that i don't know the internal resistance while loading the battery. Maybe i can only check the battery with my multimeter, but I think the battery is not the only thing connected to the microUSB while loading...so there is a risk to damage something...and I don't want to buy a new Desire
edit: and of course I want the maximum loading power - and there are chargers between 4-12,5V/0,2-1A - (I've seen so far)
edit2: Okay, found some infos about the chargers - when plugged into PC there is communication through the 2 data channels (D- and D+) - When loading on charger it can happen that there is no charging (because of missing information through data channels) - so one has to connect D+ and D- with Gnd - like in most third party usb chargers! Then it should work. Maybe that helps someone later...
edit3: If someone is interested - one possibility to build a charger (european symbols!):
Device: Samsung Galaxy S3
ROM : Stock (rooted)
HTC Desire (B8181 AMOLED S-OFF CM9)
Apple iPhone 3G white (2 Months with crap)
HTC Magic 32B white (and still lovin' it!)
HTC Trinity - VPA compact GPS
Nokia 7610, 7650, 6210 and other Nokias before...