Joe, my TT1 times out when I leave it on (or I've been lucky), and I simply carry an extra battery for it anyway. I like it better on the cam than my big TT5. Programming and software updates in all my PW's have been simple, except their program wouldn't run on one of my windows machines, and that was my machine's fault. I'd like more user/software control and options over the PWs. I may be asking a lot, but since they are the best of the best I'd like to be able to control how long they sit idle before going into their battery save mode, and also I'd like to turn the power down 3db or so when I'm not using them to trigger flashes 1600 feet away (studio and indoors and such).