In this short, a dynohub from Biologic is seen. This setup is used to charge an iPhone case with a battery. Next, I’ll use it the dyno to run lights on my urban bikes all the time. Just like daytime running lights on a car and headlights at night. It’s ridiculous really to have a 1200 lumens light last about 50 minutes on a rechargeable battery. Even more ridiculous design wise, is all the devices attached to a bike that require recharging when I can generate power with next-gen hubs like the Joule.