Calling Sat-Nav Owners

I have a tidy solution for Sat-Nav's via a ball mount using bracket attached to the right hand handlebar which I can share pictures and dimensions with if anyone is interested in making one themselves
What I'm after is a neat solution for power to the handlebars
Currently I use a large battery carried in the pocket of a spare wheel cover
As I'm on a week's visit to France next year I need a better solution than a battery
I'm converting my AC scooter ignition to vape so I'm thinking a vape regular with a DC output
I'm struggling to think of a good solution with no inner legshield tool box to get the DC supply to the handle bars
Has anyone worked this out and be willing to share?
I'm not keen on drilling cable exit holes in an original paint headset
What I'm after is a neat solution for power to the handlebars
Currently I use a large battery carried in the pocket of a spare wheel cover
As I'm on a week's visit to France next year I need a better solution than a battery
I'm converting my AC scooter ignition to vape so I'm thinking a vape regular with a DC output
I'm struggling to think of a good solution with no inner legshield tool box to get the DC supply to the handle bars
Has anyone worked this out and be willing to share?
I'm not keen on drilling cable exit holes in an original paint headset