Hi Patrick,
We have loads of high-capacity Sony lithiums, so battery use by the ob-board wireless is the last of my worries. I’m usually more worried about the double-A’s going flat in the stand-alone wireless recievers we use now. I got mine from Joyce at Bexel for around $1780 with the Panasonic D-pin adaptor. She is great to deal with. That’s where I got my SDX900.
Peter
Peter Corbett
Powerhouse Productions
Australia
http://www.php.com.au