java
Expedition Leader
Reread my post: "even if you're willing to build a custom cable, you can't have a semi-permanent setup where you can have expended storage without running on battery."
The issue is not the cabling. The issue is that switching the USB port to HOST mode changes the power pins from inputs to outputs (per USB standard, HOST always supplies power to the bus). The Nexus hardware is physically not capable of accepting a charge while it's set to HOST mode.
ah i see what your getting at! Duh....
I just charge mine at night when the truck is stopped.... battery is good enough so far.