Transcontinental Race No. 6 - TCR6 - #TCRN06 - 2018

I think @frank9755 has.

Yeah, lots of people do. You just don't hear about it because it's boring and everyone loves a good dynamo story :)

Has anyone ever done it without a dynamo - just power banks and strategic charging along the way - or is that a ridiculous idea I should put to bed immediately?

Dynamos are essential on something like the tour divide where you are in remote areas and need high powered off road lights. The TCR goes through some of the most densely hotelled terrain on earth and, mostly, has better roads than here.

Lots of people use batteries, but as @hippy says, you don't hear about it because they don't need loads of advice on Facebook about how to set them up, how to waterproof chargers, etc.

I used batteries in 2016 TCR and also Indypac last year (and I lent my batteries to someone else for last year's TCR). If you charge at least every 4-5 days overnight in a hotel (5 hours to full charge), it works fine. If you are really careful about using power you could probably get all the way.

As well as power banks I also use AAs, for some of my lights and for a battery box. In worst case I could power everything off AAs. I normally stock up in the last shop I go to in each country to use up my change.

A dynamo is a good idea if:
You use loads of power - want to keep your phone on all the time for social media and want to use very high powered lights
You want to bivvy every night
You are going ultra minimalist so don't have bag space for a couple of extra phone-sized batteries
You're not in a rush so don't mind sacrificing the equivalent of c.10W threshold power.
You already have a dynamo and don't want to feel bad about having got it before you realised you didn't really need one.

Otherwise, batteries are a sensible option.