CAT CBC25E 25 Amp Battery Charger with 75 Amp Engine Start 3-stage Fully Automatic Battery Charger Provides Up To 25a Of Automatic, Multistage Charging For 12v Battery Systems 540w Engine Start & Alternator Check Battery Reconditioning & Float-mode Charging Electric-pulse Technology Helps Reverse Sulfate Buildup On Battery Plates To Improve Charge Capacity & Extend Battery Life