Will a slot 2 device drain the battery (such as supercard lite) if you're using a slot1 device like Supercard DS One and just running music etc off of that? I would hope that slot 2 device only has the ram activated when a program looks to use it. Is it always on though? I get really good batterly life with just a supercard one, i'm a bit worried adding a supercard lite would chop that in half. Thanks.