I have used a mix between the actual rechargeable battery back, and the 'psyclone gaming' batteries (usually found at Target or Best Buy in the US).
I am starting to get annoyed, because the Microsoft batteries and chargers I think use a special 'chip' in them, and therefore the charging station can't charge the off brand batteries. To make matters worse, the charger I have for the off brand batteries has failed as well.
I want to know if the Microsoft batteries are worth the premium in cost, or if I am missing something. Also, where is the best place to get batteries?