OptiMate 4 Dual ProgramOptiMate 4 Dual Program: 9-step 12V 1A sealed battery saving charger & maintainer.The most advanced & trusted 12V battery saving charger for your high performance or touring motorcycle, ATV, Side by Side or personal watercraft. Most energy efficient ‘1 Amp’ charger in the world!Dual Charge Program trusted by riders world-wide. Charge direct to battery or via 12V socket on BMW motorcycles with CAN-bus.Charge, test and maintain your 12V lead-acid (STD, AGM, GEL) starter or deep cycle battery. Battery performance guaranteed.Saves ‘dead flat’ sulphated batteries from as low as 0.5V. The most advanced recovery program.Advanced and accurate testing before and after charging.OptiMate’s 24-7 smart maintenance guarantees more battery power, longer battery life.