In TWOK parlance, Kirk orders "Stop energizers." There's another place where Scotty says "The main energizer's been hit." They can no longer warp and can only give Kirk a "few shots" from the phasers. Later, iirc, the "energizers are back on-line" and they can go to warp. I'm not convinced that the energizers have anything to do with the dilithium crystals, and may have something to do with the warp coils or the "space matrix restoration coils" or even the "Chamber's Coil" that Uhura mentions.
Fascinating how all of these things can be interpreted so many different ways by so many different people.