Super Performance Lithium Ion Batteries. The latest in motorcycle battery technology, Lithium Ion batteries are the lightest and most environmentally friendly options on the market. More than 65% weight saving of normal lead-acid type batteries, makes Lithium Ion batteries perfect for track and race bikes where weight reduction is an enhancement. Unique casing design with spacers for exact height adjustment, cases are same size as the original battery that is being replaced. Less volume and weight ? 1/3 of equivalent model normal lead-acid batteries. No pollution ? contains no acid or heavy metals such as lead, cadmium, mercury. Non-spilling ? contains no acid. Super cranking power ? greater cranking power (40CA+). Increased safety - non-polluting, non-explosive and non-combustable. Excellent cycle life - 2000+ charging cycles.