How about adding a battery for the suit? like an oxygen or hydrogen bottle, so we can make things easier, not only because energy drains a little bit fast, but it takes a long time to get the energy back from a medical room, and for charging the battery suit again it's simple to put it in a normal battery like we put the bottles in the o2/h2 generator.
But the battery suit seems op, how about adding it with only 2 uses, and making it a little bit expensive so the crafting requires the value of 5-10 power cells and some other materials.
I could see this battery in the game and saving a lot of people from problems while building bases or doing some other stuff ^^
(Sorry for any misspell if there's any, english isn't my main language c; )