Switronix HDSLR V-Mount Battery Pack.
Switronix has a announced a new battery pack for the 5D Mark II and 7D. The Powerbase 70 is a fourteen volt Lithium battery with up to six times the run time of a Canon LP-E6. There are also two PTAP ports to power additional accessories. There are multiple mounting options via a 1/4-20 screw thread. There is no mention of pricing yet. Get ready for a flood of new gear coming this week from NAB!