Liberty is introducing the 442 series. A professional grade line of battery backup pump systems called StormCell® These systems feature high-output pumping, an energy efficient DC pump for longer run times and professional grade charger/controllers. They are also available with optional NightEye® technology for remote monitoring and notifications! The line of StormCell® products also will include high performance 12 V batteries that are USA made and designed for optimum performance in backup pump applications! These batteries are available in Group 27 or Group 31 and in flooded or AGM styles.