Tusk Lithium Battery TLP7ZS - Fits: Yamaha YFZ450R 2009-2015 High-performance batteries designed for motorcycles, ATVs, and UTVs. Powerful lithium-iron cell technology that is extremely lightweight (1/3 the weight of traditional lead/acid batteries). Long service life (twice that of lead/acid batteries) and have no corrosive liquids or toxic heavy metals. DO NOT use a charger if it has an automatic "desulfation mode", which cannot be turned off. Limited Two-Year Warranty on Tusk Lithium batteries for defects in material and/or workmanship.