I thought I would add something here. The infuser output is actually 500MJ/t, and the energy cell's max output is 100MJ/t PER side. So, you can wire up 5 sides of an energy cell to dump power directly into the infuser at 500MJ/t (as a side note, the conduit can go into one side of the infuser, so no need to wire it all 5 sides). Stack enough of those, and you can charge your power armor pretty quickly. As a test, I wired it up, and dumped a full energy cell (600K) into my power armor in 10 or 15 seconds.
TE may not be what people were used to, but I don't think it's as bad as some make it out to be. Additionally, Quantum Armor only held up to 5Mil EUs, while the MPS can hold up to 25Mil MJs. So, the comparison isn't quite apples to apples (but, really, who needs that much power in their suit anyway).