Hm; sadly this doesn't appear to have fixed the particular setup I had in my house. I've tried re-placing all of the machines involved in this setup, and it makes me wonder altogether if there was a slight change in the core Transformer mechanics or anything.
Either way; I can confirm that all three tiers of your Charging Benches, in both your official release and that Beta version, will charge comfortably from a setup slightly less power-heavy than mine. As for why my setup randomly decided to stop working... Not too sure. But it very much appears that it's not an issue your end, and most likely me overlooking something
Thanks for the amazing mod and the friendly reply