The RT320 is a super lightweight Lithium battery from Varley that packs more cranking current than a Red Top 25 and weighs almost 6kg less. As well as offering benefits of a substantial weight saving over a lead battery, the Varley lithium battery can be charged faster and has a longer storage life. They also offer superior resistance to shock and vibration making them perfect for Motorsport use. Tested to UN regulations for transportation. The battery must only be charged using the included battery charger designed for Lithium batteries.Nominal Voltage: 12.8VAmp Hour Capacity: 6Cranking Current: 320ATerminals: M6 FemaleWeight: 1.3kgDimensions: 150 x 87 x 105mmThe Varley Red Top lithium RT320 battery is recommended for engine capacities up to 1300cc which are fitted with an alternator. The battery can be used on vehicles without an alternator but will generally only provide enough power for 1 or 2 starts.Important note: Varley Red Top Lithium RT320 battery is suitable for engines up to