Optimate 1 ChargerCaracteristicas: Maintain any type of 12V lead acid battery without overcharge, including: filler cap wet cell, sealed AGM (MF) or GEL Ideal for vehicles that are seldom or seasonally used, or in storage Optimizes battery power and life; 100% automatic 100% safe New features include the following: Four step program Delivers 600mA constant current at 12V Includes the OptiMate unique maintenance program; tests and delivers only what the battery needs;