Power Management Documentation (For Battery Purposes)?

Hey there, I was just wondering if there's any documentation on the 10 pin power port and / or 4 pin power port on the Alpha 800 series boards. I'd like to know what the pins are and how they work, as well as the pros and cons of each. I've found bits and pieces in regards to powering the Alpha with a battery, but nothing particularly substantive. Could someone link me any resources?

Thanks!!