Liberty Pumps has introduced the newest model in its battery backup line. The Model 441-10A emergency sump pump system is a mid-range product, falling between the base level 441 system and the higher-end 442 systems. It combines many of the features of both with a professional level 10-amp charger. The high output 12V battery operated pump starts automatically when the power fails. With two different modes that charge and maintain your battery at peak performance — 10A bulk charging mode and 5A maintenance cycle charging mode — the charger automatically switches to maintenance mode when the battery is charged. It includes seven LEDs that transmit critical system information at a glance and the battery voltage is displayed right on the charger. 

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