ELEVEN PRE-PROGRAMMED BATTERY CHARGE CURVES - Includes LiFePO 4, GEL, AGM, Calcium, & Flooded Lead Acid Batteries plus custom, user programmable battery charge profile. Set easily from the charger, no need for a computer. FOUR STEP BATTERY CHARGING PROFILE - Extend your battery life by ensuring a full charge & conditioning. Battery will enter a float and energy-save mode when charging is complete to protect against overcharging of your batteries. EASY TO USE - 2 digital meters display real-time current and voltage measurements; 3 isolated outputs will direct all output to one battery if needed; 90VAC-270VAC for worldwide usage; all-digital for maximum efficiency and cool running INNOVATIVE DESIGN - Awarded Sail Magazine's Pittman Innovation Award in the Systems category. Product includes 5 year manufacturer's warranty. OPTIONAL REMOTE CONTROL - Use the Sterling ProCharge Ultra with an optional remote control that can be surface, recess, or flush-mounted over 30 feet away from the battery charger (also available on Amazon). Item shows signs of previous use and that it had been installed and screwed down. Our new line of Marine Grade, Power Factor Corrected Battery Chargers set a new standard of what you should expect from your battery charger when it comes to features, performance & price. Years of experience in the battery charging industry has provided us the insight to include everything we could possibly think of and combine it all into the ProCharge Ultra line of feature rich, high performance marine grade battery chargers. This exceptionally efficient power factor corrected battery charger runs on any Global AC Power source between 90-260 volts, requires less input power, produces less waste heat, and still has a remarkably small, lightweight footprint. Did we mention Eleven pre-programmed battery charging curves as well as one user customizable battery profile? Check the real time voltage or current output on the digital display or on the optional remote control that can be either surface, recess, or flush mounted over 30 feet away from the battery charger. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.