Extreme Power Series (XPS) Lithium 20-Cell Motorsports Battery: this ATX-20-L model has its Negative Terminal located on the LEFT side (NOTE: Photos may show model with Right Neg terminal). Directly replace the OEM “20 Size” battery: YTX20, YTX20L, YTX20H, YTX20-BS. That OEM standardized size is used in many different manufacturers models of Motorcycles including Harley Davidsons, Victory, Metric Cruisers/Tourers plus many Powersport Vehicles such as UTVs/ATVs, Snowmobiles and more. In comparison, Antigravity’s Lithium-Ion version offers huge weight savings and OVER 2.5 times the Cranking Power of the Lead/Acid battery! So those difficult-to-start Large Custom V-Twin Motors can turn over with ease. The ATX-20 weighs LESS than 5 lbs yet easily starts 145 Cubic Inch S&S V-Twin Motors, or an 800 Horsepower V8 Roush Racing Motor typical in Trophy Trucks or NASCAR Sprint Cars. Great in Hi-Performance Automotive and Racing applications too, where extremely high cranking power + massive weight reduction in a very compact size are desired (we sell Auto Terminal Adapters). The ATX-20 offers 780 CA, the most power in the smallest package. Save up to 32 lbs in race cars and 14 lbs in Motorcycles. It can hold a charge OVER a year when there are no “Parasitic Drains” (accessories that draw power when the bike is off: alarms, ECUs, GPS, heated grips). Built in the USA to high quality standards with large all brass terminal design. NOTE: We also offer this battery with the negative terminal located on the Right side (see model ATX-20-R). 780 CA, 25 Ah (Pb Eq). 3-Year Warranty. Best uses: Excellent for every day use in bikes up to 2600cc; Great for extra large hi-performance V-Twin motors; Best Choice for Extra Large V-Twins (if this battery won’t turn it over then it is not a battery issue); Excellent for Touring Bikes, Adventure Bikes and bikes where extreme power and larger Ah capacity are needed; Excellent for use in Race Cars of all types including large V-8 Racing motors.