The battery Slot in machines seems pretty useless to me, so i thought, why not remove it?
I havent seen anyone using the battery Slot to Keep machines powered. This could be further used to help automate the machines.
For example: all Inputs from pipes etc. will go into the left Slot to get processed and everytime an item is pulled out, it gets pulled from the Output Slot. (now it`s basically the vanilla furnance where all Input must go at the top).
2nd Make the machines transmit energy trough them (Red Power and greg tech) so you dont have to worry about the cables at the back