Run Time 12 to 18 Hours based on a stop start cycle of 12 times per hour. Indoor use only. Weight 70 pounds. 22" Long, 12" high and 14" wide.Battery weighs 40 pounds and dimensions are 15" Long, 10" high, and 12" wide. Note only one battery with Pump Mate Plus LPM-12 For use with 1/3 to 1 HP only. Please check name plate on your pump motor for proper size. Installation is simple plug and play. Instructions come with the unit and 2 year manufacturers warranty. The 120 VAC outlet should be a dedicated circuit.