No two people have the same experience, I did a two week bike tour and my GPS, phone, wifi tablet, headlamp (for my head after sunset), camera, and taillights all stayed adequately charged off of my dynohub. I never plugged into an outlet during that trip.

But I was constantly looking for power on my last tour before I had a dynohub. The photo was from an empty campsite a few hundred feet from the hiker biker site where I was camped, I was trying to charge up everything thing I had with me, in the photo two pairs of AA batteries, a Li Ion battery for my camera, the USB cable is to my tablet. And yes, on a bike tour I carried one of those three into one outlet adapters so I could plug more stuff in. On a bike tour I use battery taillights because they flash, dyno powered taillights do not flash, thus I had to charge AAA batteries too.

Bike touring, I use a headlamp (on my bike) so rarely, that I think in the future I will bring a light weight battery powered one, then the only wiring I have to do when I assemble my bike is to hook up the USB charger to the hub.



If you are credit card touring, I can see where you really do not need a dynohub because you can charge up stuff every night.

The last two touring bikes I built up, by buying a dynohub but not buying a regular hub, my actual cost was not much more for the front wheel. But if you already have a fully functional front wheel and want to upgrade to a dynohub, that is where the costs become quite significant.

Plus of course I had to buy the USB charger, those vary in price greatly.