there's a 970? i got the 6000mAH one. didn't know they had a 6600. damn
...and they're the same size.
Keep in mind folks that running the biggest/powerful battery every time shouldn't be the only mindset. The 6600mAh should be fine for several hours (4-5 hours, 4ch phantom) on a normal day, but it also gives the machine some serious backside to it where it makes it hard to mount in a bag - especially the porta made for it (Since it sticks out 3 times as much as the battery it was designed to hold).
Has anyone tried to splice the Sony A/C adapter (the one that has the battery looking module on one side) into a battery mount in order to trick the 744/722 to think that it indeed does have a D/C battery mounted to it but in a remote location? Therefore not hacving to go to an external 12V...