The Antigravity "Small Case" models offer the most power and performance in the most compact size of any lithium battery on the market. These compact batteries can serve many purposes: They can be used as the smallest lightest battery possible for race vehicles including cars, motorcycles and other motorsports vehicles to save space and weight, or for fitting into custom motorcycles for those who want the smallest battery they can find so their creation doesn't have a bulky battery messing up the look. They come in power levels from 120 cranking amps to 480 cranking amps that can start some of the largest V-twins and race cars yet the battery only weighs four pounds! Most compact of lithium motorsports batteries available. Adhesive-backed foam included for easy installation. Ultra-lightweight and high power lithium nano-phosphate motorsport battery.