For instance when I have my SLOT 1 and 2 in there and I am playing something off the SLOT 1 that does not use the second slot device at all..? Is the DS still accessing the SLOT 2 device and draining power ?
That would improve battery life, yes. The only estimate I've heard about that is that it adds about 1 hour, though I'm not sure how accurate that is.I just have a slot-2 device, what if i take out PassCard when the game is loaded?