Hi,
i did a english description on opensimpad.org, but it is really short. the problem is, that no one who did it made pictures.
I eventually could make a small wirering schematik or you could just ask if you didn't understand something.
It would be verry nice if you do the stuff and make pictures and a better descriptin.
my accu is still in a verry good condition so i don't do it at the moment. eventually we could find the connector oem.
regards nice