Anyone got any experience of or views on this: https://www.spacycles.co.uk/m2b276s208p3515/ADEPT-ELECTRONICS-VeloCharger-for-Hub-Dynamo Am doing some early research on such things before in time getting a dynamo wheel for the expedition tourer. I know that the B&M wunderkinds do devices for this sort of thing but from what I can figure both of their devices are unecessarily clever/expensive and have features I don't need, ie: a cache battery in one and an ability to adjust the output in the other. I do not intend to charge any running devices from one of these things (my Garmin runs on rechargeable AAs), just charge up an Anker Powerbank. Am I right in thinking that it is advisable to have a switch somewhere in the line so that during daylight you can switch off any dynamo light (in time I will doubtless get one of those as well) and have all the power fed to charging the powerbank? If so, where should this switch be? In the convertor itself or somehow wired into the line from the dynamo? Final question - any desirable features in such things which I should look for but have very possibly not even thought of? Thanks in anticipation, happy new year's cycling/touring one and all.