A built-in, rechargeable battery is a huge upgrade for the Elite 2. Xbox One controllers drink down AA batteries quickly, and the company recommends that you don’t use rechargeable cells because of they don’t necessarily deliver the same amount of current. I still use rechargeable batteries regularly, but I’ve long wondered if it hinders performance. The Elite 2’s built-in battery charges via USB-C or wirelessly via a dock that comes in the box. It also comes with a long, braided USB-C cable. In my experience, the battery lasted forever. Even across several two-hour gaming sessions without a recharge, it didn’t flinch.