The Antigravity SC-1 is the smallest, most powerful motorsport battery in the world! This battery is designed for race motorcycles and powersports vehicles up to 1300cc in competition use ONLY. It has a lower capacity than the 4-cell model but offers twice the power! Though a minuscule 4.25" length x 1.25" depth and 3.75" height (to the top of the terminals) the SC1 battery can start a V8 motor! It weighs less than 1 pound, yet is as powerful as the competitors' batteries that are twice the size. For example, if you used an 8-cell Ballistic battery before, the SC-1 can start anything the 8-cell Ballistic does and is half the weight and half the size! Best Uses: Race use for sport bikes, enduro and MX electric-start bikes up to 1300cc - for example: Can easily start high compression Ducati V-twin motors yet only weighs 15 ounces.