Originally posted by cdurfor That was exactly my concern! But on reduced power (1/32) the flash outlasted the D-Li-90 camera battery. Much to my surprise...
Well I never have concerns with Camera battery power.. I use the grip with a second D-LI 90, I make the grip battery drain first, and if it runs out fast I can always hot-swap the D-90 Li out for the 6xAA tray which I now pack around since I started doing time lapse. My night time shoot with the fisheye drained my grip battery but barely touched the body's battery.. and that was 812 shots in -6 C.
finally picked up some heat packs for next time to keep my lens from frosting up!