Save Money By Preventing A No Start Situation! The Bex-3000 3.0 Amp Battery Charger Is Fully Equipped With Sophisticated Circuitry That Will Safely Charge And Maintain Batteries Without Overcharging. Compatible With All 12V Lead Acid Batteries: Standard (Flooded), Agm, And Gel Cell. Fully Automatic Smart" Charging Enables Energy Efficient Safe Charging Via Autometers Advanced Software And Digital Circuitry. Features Four Charging Modes: Desulfation, Bulk, Absorption, And Maintain. Utilizes Colored Led Indicator Lights To Tell You What Stage Of Charge Your Battery Is Currently Taking.