Hi,
Have a look here:
http://www.chiefdelphi.com/forums/sh...d.php?t=136115
Team 3339 from Israel has posted a request and received numerous offers from other teams. They now have far more offers for batteries than they will likely need and they've said they will share with other Israeli and international teams, so you may want to coordinate with them.
Good luck, looking forward to meeting you all next week!