Would it be possible to add a config option to allow the Power Armor (and possibly other energy cell items like laser rifles) to be powered directly by RF rather than needing the energy cell as a middle man? I would like to be able to put the armor directly into the charging station from Immersive Engineering, as I am making a pack revolving heavily around the mod, and neither Energy Cells or Power Armor can be charged through its charging station.
I hope this will be possible without requiring a massive rewrite of code, but I am not sure.

I hope this will be possible without requiring a massive rewrite of code

No