Description
Prevent basement flooding during severe storm grid blackouts and primary pump failures. The Little Giant Pump SPBS-12HF Sump Pump battery backup package provides emergency high-flow evacuation. A 12-volt DC continuous-duty motor powers the submersible backup pump. Pumping run duration depends on external deep-cycle marine battery capacity during prolonged power outages.
Corrosion-proof thermoplastic forms the submersible pump volute and impeller to resist mineral-laden sump water. The 12-volt DC motor links straight to a semi-open non-clogging impeller. A digital smart controller monitors battery state of charge while providing continuous float battery recharging. Dual float switches trigger emergency pump cycles if water rises past primary sump levels. An audible alarm alerts homeowners to power loss.
Emergency Sump Hardware Specifications
Basement contractors install redundant flood protection systems without modifying existing pit dimensions. Dual float sensors eliminate failure points caused by mechanical float hangs.
- Continuous-duty 12-volt DC motor delivers emergency pumping power during electrical outages
- Submersible high-flow backup pump produces 42 GPM at 0-foot head for rapid drainage
- Smart charging controller maintains optimal battery charge without acid boiling
- Dual magnetic float switches trigger pump action if water reaches alarm levels
- Audible 85-dBA warning horn alerts facility staff during primary pump malfunctions
- Thermoplastic pump housing resists chemical pitting from basement laundry wastewater
- Standard 1.5-inch NPT discharge connects straight to secondary PVC check valves
DC Dyno Bench Telemetry Data
Bench testing demonstrates the 12-volt motor draws 11.5 Amps under a 10-foot dynamic discharge head. Fluid discharge stabilizes at 25 GPM through a 1.5-inch PVC discharge pipe. Motor casing temperature reaches 118°F after 60 continuous minutes of pumping. Sound meters record 54 dBA at 2 meters from the sump basin.
Operational Boundaries Field Realities
You mount the smart controller on basement walls using standard drywall anchors. The compact 12-volt pump fits beside primary pumps inside standard 18-inch sump basins. Do not operate this backup system without a certified deep-cycle AGM battery. Standard automotive starting batteries cannot tolerate deep discharge cycles and drop voltage under load.
- Test the auxiliary float switch by hand every 30 days to verify motor start
- Inspect battery terminal posts for white corrosion scale once every 3 months
- Clean the lower suction intake screen to stop gravel from blocking impellers
Factory Warranty Coverage Roster
Little Giant backs this backup sump pump system with a 2-Year limited manufacturer warranty. The retail carton contains the 12-volt backup pump, smart charger controller, dual float switches, check valve, and installation guide.





