 PLOT: SPOILER: The Terminator says that he is powered by two primary  fuel cells. One is disposed of in the desert after it was damaged.  The other one is removed at the end in an effort to destroy the TX,  yet he remains active long enough to taunt the TX and even seems to  still be partially active in the closing shot of the film before  showing his eye slowly blinking out. How is he able to still  function after removing both of his power cells?