Do warps use any electricity when intellifed?

[trains are bad]

Say I was trying to get the most battery life possible, which I am.

I have my warp wired up to recieve a pulse from my predator morlock, which switched battery current directly to the warp. It occured to me that the intellifeed might actually be a significant source of current drain. Is it? Would it be more battery efficient to run the intellifeed output to relay?

[SAW]

Well, a current has to go through the wires, so the juice has to come from somewhere...I doubt that it would be THAT large of a drain. Other than that, I have no clue.