Say we take 3 mins duration from 0:55 point, DRY triple XM-L dropped from 520 to 482, or 7.3%. Room temperature 18 deg C. TK70 is 450 (at the end of the vid i tried to tailstand it). Cell voltage about 3.9V, amp measurement about 3.7 amps thereabouts....plent of juice to heat it up.
http://www.youtube.com/embed/a-9lONjV46w