These batteries were worth the money, because I could have bought two from other sellers for the same price, and we got three useful batteries out of this set of fifty. The others are exploding, one after the other. About fifteen have exploded so far, though it's difficult to really count, since the pieces are small. Each time we hear another loud bang my kids yell "A firecracker!" I never knew what was inside a battery before, except when they oozed, so this is very interesting. However, it's not what we bought them for.We'll be sticking with the more expensive, non-exploding kind after this.