Introducing the ChargeMaster 12/25-3 by Mastervolt! The ChargeMaster guarantees fast and complete charging of your batteries. Thanks to Mastervolt’s innovative 3-step+ charging process, batteries also perform better and last longer. A clearly lit display on the ChargeMaster provides all essential information: charge current, charge voltage, charge phase and battery content measurement, and/or battery condition measurement as a percentage of available Ah capacity. The display also indicates MasterBus communication. Three buttons adjacent to the read-out panel allow for easy operation of the entire system.