This is perfect for the gamer who has everything. I play video games every night before I go to bed and I've been noticing I've been running through batteries like crazy and I feel guilty every time I put a new battery in. I got these trying to help the planet and my pocket. These things seem to hold a pretty good charge. Their batteries are a little bit bigger but they also come with a battery back so it takes care of that issue. It also comes with 2 charging cords that you can charge them at the same time. I really enjoyed using these while I was gaming and I was able to gain a lot longer than I was on a traditional battery I would definitely consider these as a Christmas present or a holiday present for somebody for gaming purposes. Awesome Buy.