These have seriously came in handy. I was so tired of having to replace the battiers in my Xbox 1 all the time. It drains batteries so fast, so when I saw these I needed to have them. They work, and it charges both my Xbox 1 controllers at the same time obviously. It really does save money when you aren't having to buy batteries all the time. Use it when you need it, and then put it away so it can charge.