I highly recommend you go out and buy Mirrored, or try to see the band live - they're fantastic.
Battles sort of split up last year, announcing the departure of member Tyondai Braxton. BUT! They're still going! The group have announced a new album, Gloss Drop. Due for release June 2011. Here's a new track to start the hype http://soundcloud.com/weallwantsome1/battles-ice-cream-feat-matias