I bought a copy of Megaman Battle Network 2 off Ebay, but the seller didn't realize that the battery had run dry. This is a perfect chance for me to try soldering a battery on for the first time, as the seller will offer a full refund if it fails. I just wasn't sure which battery to buy? I found this http://www.amazon.com/Energizer-CR2...ie=UTF8&qid=1416443020&sr=8-1&keywords=cr2016, but I'm not sure if that's the best solution, as these batteries don't have those little clips on the ends that I've seen in tutorials. Does that matter, or should I just get these? The price is certainly right. Are there any better (longer lasting, etc) batteries that anyone could recommend? Thanks a lot!