I have used dual Z240's on three trips. I typically shot 250 - 300 shots a day @ an average of 1/2 power manual or iTTL, over 4 dives and only replace my batteries ( NiMH 2300 ) @ the end of the day. I have never had long recycle time or run out of power. I dont know how much further I could push them.
J Malo
I have a pair of well used 240's.I have done 2 dives on a set of 2500 MAh NiMH - although it is my usual habit to use a fresh set each dive.
