Hi Bain,

JohnA is right it goes to 0V however if you have it attached to the Pro Trak it will give you an audible warning when the last cell goes under .1V. Usually takes about an hour for a decently matched pack which has been discharged after a race.

I'm not keen on the trays which only go to .7 or .9, I don't know if you have noticed but some cells take longer to go all the wayto zero after they get to .9. this would mean that the cells still were not accurately equalised.

I also have a Pro Match tray, I found that when the LED's went out there was still 0.7V left in each cell.