YT12B-BS Lithium Ion Sealed Battery 12V 280 CCA - Yamaha FZ6 SRX600 YZF-R6 XVS650 V-Star YZF-R1 (MMG5) Less volume and weight: 1/3 of normal lead-acid battery Exceptional cycle life: more than 2000 cycles under JISD standard (lead-acid battery 150-300 cycles). No maintenance needed for almost a year. Incredibly fast recharge rate No pollution: safe for the environment. Does not contain any acid and heavy metals such as lead, cadmium, or mercury Replacement for YTZ10S, YTZ12S, YTZ14S and YT12B-BS