12 Volt battery sold separately an mage of a water pump and accessores set up on a whte background Backup System Cost 12 Volt Battery Backup Sump Pump - Ashland Pump Vertical Float Switch Sump Pump This 12V DC powerhouse can move an impressive 1,380 gallons per hour and lift water up to 25 feet high, which is seriously powerful for a backup system. The vertical float switch automatically kicks the pump on when water rises and turns it off when the job's done - no manual intervention needed 2 Amp AC charger with power cord Superior Pump 92941 1/3 HP Combination Primary & Backup Sump Pump System superior 92910 battery back with vertical float switch