Antigravity Batteries 16-Cell OEM Case 480 CA 16Ah YTX12-16 Ultra-Lightweight and Highest Power Lithium Nano-Phosphate Motorsport Battery Made Can hold a charge up to a year provided there are no Parasitic Drains (accessories that draw power when the bike is offsuch as alarms, ECUs, ipods, GPS , heated grips etc) Built in the USA to high quality standards with unbreakable terminal design. 3-Year Warranty-check manufactures website for details (antigravitybatteries.com) Can be used in watercraft up to 1000cc