Schauer Charge Master CM12A is an automatic multi-stage smart battery charger. The CM12A features a multi-amp selector and a battery chemistry selector. The multi amp selector allows you to charge a 12v battery at 1 Amp, 8 Amps or 12 Amps. The battery chemistry selector allows you to charge a flooded, AGM, Gel, or Calcium lead acid battery.

The CM12A features multi-stage charging process that charges the battery accurately and fully. These stages include a Qualification Stage, Rejuvenation Stage, Soft Start Stage, Bulk Charge Stage, Absorption Stage, Equalization Stage, Analysis Stage, and the Float Stage. This multi-stage process ensures the battery receives a full charge without overcharging the battery.