HMXHenry, a Harmonix developer, writes on the official Rock Band forums:
"I thought you RB.com forum regulars may be interested to know that the fine folks at Energizer have decided to give away DLC with their new Advanced Lithium Batteries.
This deal applies to both XBox Live and the Playstation Store, so if you're in need of new batteries and some new DLC then this should work out nicely for everyone.
You can track down the batteries at most major electronic retailers: Meijer, Circuit City, Kroger, SAMs Club and, you know, other places that sell batteries."
