My tours I left things that needed Charging Un Bought.. or at Home ..
The smart phone addiction as Suckered people in well .
I saw a trailer with a dynamo, spins faster. check the trailer thread.
Schmidt has single side Hubs ... Several axle types + those made for smaller front wheels ..
And you will have More room for all that electronics .. maybe add a solar panel for when you are stopped ..
Re orienting the panel to face the sun for Most Power output, will be hard to do on the move