[MetalMan]

Only put the batteries in the refrigerator if they have already cooled down. If you do it while they are hot, then the outside will cool down (shrink) while the inside is still hot. This can lead to a shortened life later on, so it isn't worth it. As far as i know, alkaline batteries last longer when cold because that way the internals are more stable (heat would make them less stable), so that the voltage won't drop as much.