My father bought us this battery when he visited us last year. He noticed that our remote control battery for our DVD player had almost run out of power, so he bought this battery for us. It's made by Kagoshima and to tell you the truth, I've never heard of this brand before. The type of this battery is AAA 1.5V battery and this type of battery exactly matches our DVD player's remote control. Looks like this battery is made in Japan, but I'm not so sure. It says it's Extra Heavy Duty and has 0% mercury. Too bad this is not rechargable, so we need to dispose it once it's empty. The battery life couldn't last long, just like I predicted. My father said it was cheap, and this was all he could find in the mini market he visited. A pack of this battery contains four pieces and we just used two of them for our DVD player and after some time (like two or three months), they could no longer be used. We were disappointed at it, but since this was a gift, I knew I shouldn't complain. But I know one thing, we will never buy this battery, even if it's the cheapest battery. Definitely not recommended.