The Antigravity AG-1601 is an ultra compact 16-Cell battery: only 4.5 x 3.25 x 5.25 inches and 3.18 lbs yet has massive power. It can turn over many of the larger V-Twin motors up to 113 cubic inches. This lightweight motorcycle battery is often chosen for Custom V-Twins where small size is needed, and by Adventure bikers who want more power and capacity.