Several years ago, I was talking with an area rep for Yaesu. We we discussing the battery on my handheld marine radio. When I complained that it would not hold a good charge, he asked me whether I had stuck it in the freezer? It sems that, for some reason I fail to understand, freezing a discharged rechargeable battery for several days brings them back to life. Let them thaw for a day or two before charging. Tell your friends. Save money.