Trying to google this but to be honest I'm just confusing myself.
Essentially I'm wondering if you can get a dynamo for the bike to charge a phone on a daily basis. And how long you would need to cycle for (at a low speed I might at probably averaging 6 to 10 mph word obviously go faster but curious to use low speeds as a base number).
Anything exist that wouldnt be a pain to run, in the sense of dynamo resistance and weight of the dynamo and battery unit.
Surely it wouldn't take much to charge a phone with a 2100mah battery? Or would it? That's the only device in interested in charging. So wondering about the spec to search for to do this?
I've seen the hub dynamo idea that's out as I eckon too expensive.