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Zoeller 507-0005 Battery Backup Sump Pump System - 900 GPH, Automatic Operation, 60 Hz, Includes Battery Case, Dual Check Valves & Alarm Controller Reviews

4.6 Rating 110 Reviews
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The Zoeller MPN 507-0005 Basement Sentry battery backup system delivers emergency flood protection through its 12-volt DC pump configuration paired with integrated alarm controller technology. This comprehensive package combines noncorrosive polyethylene battery housing with dual check valve protection and solid-state circuitry designed specifically for basement groundwater management during power failures. Operating at 60 Hz with automatic engagement capabilities, this battery-powered sump configuration provides secondary protection when primary AC-powered pumps fail or electrical service interrupts. The system's 900 gallons-per-hour evacuation capacity at minimal lift heights ensures continuous water removal from residential and commercial sump basins when utility voltage disappears. Engineered for compatibility with standard deep-cycle marine batteries, the 507-0005 features a self-contained 10-ampere charging circuit with overcharge protection and thermal burnout prevention. The polyethylene battery case construction resists corrosion from basement humidity while the integrated lock strap secures the power source against displacement during aggressive pumping cycles. This Zoeller battery backup configuration includes all essential components for complete installation: the 12-volt submersible pump mechanism, dedicated float switch assembly, discharge check valve, alarm control panel, and weather-resistant battery enclosure. Professional contractors recognize this model number for its field-proven reliability in effluent and clear water applications where backup protection justifies the investment in emergency pumping infrastructure. Integrated 12-Volt DC Pump Mechanism & Noncorrosive Construction Engineering The heart of the MPN 507-0005 system features a purpose-built 12-volt direct current pump motor optimized for deep-cycle battery power delivery rather than conventional household voltage. Unlike AC-powered primary sump pumps requiring 120-volt electrical service, this DC configuration draws energy directly from sealed lead-acid or absorbed glass mat batteries through 6-foot power leads terminated with marine-grade connectors. Noncorrosive materials throughout the pump housing prevent deterioration from prolonged exposure to basement moisture and groundwater minerals. The impeller assembly and volute chamber utilize engineered thermoplastics that maintain structural integrity when submerged for extended periods, eliminating the cast iron corrosion concerns associated with traditional sewage pumps. This battery-operated pump generates sufficient hydraulic pressure to lift water 10 feet vertically while maintaining the specified 900 GPH flow rate through standard 1.5-inch discharge piping. The DC motor's electrical efficiency maximizes available battery capacity, extending emergency runtime beyond what conventional inverter-based backup systems achieve with comparable amp-hour ratings. Installation into existing sump basins requires minimum pit dimensions of 18 inches diameter by 24 inches depth to accommodate both the backup pump and the primary AC unit. The compact pump footprint allows side-by-side positioning with minimal interference, while the 6-foot power cable length provides flexible mounting options within typical residential basement configurations. Solid-State Alarm Controller With Multi-Function Indicator Array The 507-0005's control panel incorporates fully solid-state circuitry that monitors battery voltage, pump operation status, and water level conditions through visual and audible alert mechanisms. This microprocessor-based controller eliminates mechanical relay failures common in older backup systems while providing real-time diagnostics accessible without specialized testing equipment. Three distinct LED indicators communicate system health at a glance: power status, pump activation, and high-water alarm

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“Easy to install and easy to use. This system is quiet and reliable. Way way way better than the junk you usually get at home depot or Lowes. I can sleep easy now knowing that my back up is working.”
Helpful Report
Posted 1 year ago
“Competitive price on replacement B/U battery charger and new pump. Arrived fast. Good thing I bought it because repair service did not have in stock but I had it all right there waiting to install.”
Helpful Report
Posted 1 year ago
“Protects the basement, 3 years and one replacement battery.”
Helpful Report
Posted 1 year ago
“Great product and service”
Helpful Report
Posted 1 year ago
“Installed it easy as pie and so far no problems. I hope it continues to work when the power goes out. Not much more to say. Just make sure the sump hole is big enough for the extra height of the pump?”
Helpful Report
Posted 1 year ago
“This battery backup pump system prevented our basement from flooding during storms. It even notifies us when the pump switches on. Wish we'd had it before.”
Helpful Report
Posted 1 year ago
“The supplier was very responsive to the order and it was delivered in about a week. If you have a sump pump system that moves any volume of water, power failures are a concern. This product gives you piece of mind and provides everything necessary from a good name brand (except battery) for a minimal installation. They claim the system will run on battery power for 7 hours continuous, longer, depending on duty cycle (duty cycle is the time off compared to time on, for instance, 1 minute off and one minute one is a 1-to-1 duty cycle and would run for 14 hours, according to the paperwork). The instructions show an installation for a 36" deep sump well. I didn't have nearly that amount of vertical room and had to space things more closely together vertically. I had to glue in the one-way valve (as per instructions), but would have used splicers if I had more vertical room. The instructions direct you to glue in the motor as well. I would recommend buying a rubber splice kit so that you can remove the motor. At least by installing a splice on the motor, the valve can be replaced without replacing the motor. Overall, good product, I just wouldn't recommend blindly following the directions and gluing everything for maintenance reasons.”
Helpful Report
Posted 1 year ago
“last weekend I installed it with diehard battery. as I test it, it seemed to work and yesterday, the power went out and we had basement flood. after much of googling and study the manual, I have learned it was airlock that caused it not to work. For some reason, zoeller has a round cover for water intake and that was causing the air not to escape from it. so I took the cover out and as I test it, It worked beautifully. So watch out for the round plastic cover that cause air lock. other than that, I am pretty confident that this thing will work next time.”
Helpful Report
Posted 1 year ago