The Antigravity AG-802 is a 6-Volt 8-Cell Lithium-Ion battery in an extremely small case. This battery is made for those who ride classic older bikes that run the 6V system. It is a very reliable, compact replacement for the bulky and large 6-Volts of the past. The current 6-Volt lead acid/batteries offered on today’s market are extremely unreliable and really not worth the effort as replacements. The AG-802 6-Volt Lithium battery is a reliable replacement to your old 6V battery, with great performance benefits. FEATURES:• Adhesive-Backed Foam Included for EASY INSTALLATION• Most Compact of Lithium Motorsports Batteries available• Ultra-Lightweight and High-Power Lithium-Ion Motorsport Battery• Can hold a charge up to a year provided there are no “”Parasitic Drains”” (accessories that draw power when bike is off (i.e. alarms, ECUs, iPods, GPS, heated grips, etc)• Built in the USA to high quality standards• Large all-brass terminal design• 2-Year Warranty BEST USES:• Replacement for older style 6V systems• Custom builds like cafe racers or small bore customs up to 1000cc. (Please note if you use older classic motorcycles from mid 1980s and earlier you should update the charging system to a modern voltage regulator.)SPECS:• 120 Cranking Amps. (Cranking Amps are the power the battery has)• 9 Ah (Pb Eq). (Amp Hours are the Capacity of a Battery)• 4.25 x 2.25 x 3.75 inches (mm: 110x57x95)• 1.56 lbs