http://www.amazon.com/gp/aw/d/B00E3X0XDY/ref=ya_aw_oh_pii (http://www.amazon.com/gp/aw/d/B00E3X0XDY/ref=ya_aw_oh_pii)
Battery for 2000-2006 bikes. Same as the yt12b-bs on my 2005 s2r
$40 shipped for battery and charger.
Battery has a 2 year warranty and the 2a charger is for agm batteries.