[somebody5788]

What I plan to do is run a relay off of the cut off switch. The relay is just to turn power on and off directly from the battery with it's own fuse. This way I wont be overloading any existing circuits and wont run the battery down if I forget to unplug something. Might even be able to use the fuse box where the ABS fuse would normally be, we'll see. But then I'll just have a 12v socket hidden somewhere with my 12v to USB adapter and charge devices using there normal USB cord.

 

[somebody5788]

I honestly recommend running a relay and fuse setup. Fuse is for safety and the relay is because if you leave anything plugged in. The little motorcycle battery wont last very long. So if it's wired to the ignition or the cut off switch with a relay then you wont need to worry.