I need a power solution for my DR-680 and Lectro 411a receiver and would love some good advice. The DR-680 eats AA batteries, especially when supplying phantom power. My audio case has space for at least one NP1 style battery, I was thinking about an Li-ion NP1 type battery and some kind of distribution system. Can anyone recommend the most cost effective way to go that will last at least 8 hours that has cables that will work for both units? Do I need to make my own cables? Thanks in advance!