Okay here's my problem. Hopefully, one of you super geeks can help me out. I have a HTC Hero device that I am trying to connect to an external HP E3631A DC Power Supply. I believe I have the power supply correctly connected to the phone via the + and - pins. However, the phone refuses to boot. My question is this. What do the two middle pins on the battery do? Based on the diagram the far left and right pins are power and ground, however I have no idea what the middle ones are used for and I believe my error has something to do with them. Thanks for any help you guys can give.