Optimate 7 Ampmatic 12V battery charger (TM254), 10A. Automatic 9-stage operation for 3-400A / GEL / AGM cable The OptiMate 7 charger saves batteries where other chargers fail by detecting the difference between a dead battery that needs to be charged and a sulfated battery that needs to be saved. Special Features: - Multistage Desulfation: Saves neglected 0.5 volt batteries. - Ampmatic charge control: adjust the current to any battery size (3 to 400Ah) OR any battery condition, for faster and more complete charging. - Cell voltage equalization mode: Properly prepare new batteries for first use and optimize battery performance. - Daily battery condition check and interactive float charge - keeps the battery fully charged for weeks or months. Features: CHARGE CURRENT: 10A (Ampmatic) USE: indoor / outdoor (minimum temperature: -40 ° F / -40 ° C). SAVINGS: Start with a low voltage of 0.5V + 2-stage desulfation save. IDEAL FOR: 3 400Ah standard, AGM and GEL 12V batteries. INPUT: global (100-240V 50-60Hz), high efficiency (CEC listed), fully encapsulated. Scope of Delivery: - Wall Mount Weatherproof Case - 1x 6ft / 180cm Power Cable - 1x 6ft / 180cm Charging Cable with SAE Connector Weatherproof Battery Cable and Standard Clamp Kit Included Safe: No risk of overload. Completely safe for vehicle electronics. Spark suppression. Safe for long-term battery maintenance. Automatic shutdown in case of short circuit or disconnected battery.