OddSox wrote: >> I know that freezing dead batteries -- rechargables that no longer hold >> a >> charge -- causes the chemical walls that are preventing the cells from >> charging to break down. Not completely, but enough to revive the >> battery >> again for a significant period of time. > > Would this work with laptop batteries? In theory, yes. It should work on any battery that degrades over time. I've heard reports that it doesn't work as well with Lithium Ion batteries, but I've successfully used it on both NiCad and LiIon batteries.