I see the text of this guy's ability shows up on the tool tip for warp core activated abilities (which are kinda like reusable mini-batteries I guess). I couldn't tell if he actually kicked in when using it. Any one tested this?
Further poking around shows the DOff text also shows up on Enhanced Plasma Manifold and Enhanced Induction Coils. Again, I didn't see any effect when activating them, but not even sure what to look for on them, do they count as one battery type or both?