Since their launch, the Optimate range of battery chargers/conditioners has become the easy, user-friendly way to test, charge and maintain our motorcycle batteries. The Optimate 4 dual program is the latest generation of Optimate, offering riders a choice of programmes designed for both regular wiring looms and the latest CAN-bus systems as well.The Optimate 4 dual program features all the proven functions that earned the Optimate high recommendation amongst major motorcycle manufacturers, as well as several new features, which include an instant battery condition test, re-designed clamp leads, a special low voltage pulse recovery function plus a unique keyless CAN-bus connectivity. It will automatically test, diagnose, charge and maintain the battery for months. It is safe to use with all types of lead-acid batteries including maintenance free and gel varieties and has a tough, splash-proof case - ideal for use in garages, sheds, workshops and other demanding environments.