I haven't got my set of schematics downloaded to my personal computer yet, so I can't give you specific directions for that at the moment, but if need be I'll see if I can get to that soon.
However, one thing to be aware of is that if you don't have the battery connector plugged in, your phone will be missing the battery temperature and voltage sensors, which will result in a three minute boot loop cycle. That means you'll only have three minutes in which to use the phone before it reboots, so it really depends on what you're trying to accomplish as to whether bypassing the battery FPC connector is worth your time.
So maybe if you explain what's going on and why you want to jump the power connectors we would be able to give you better advice.