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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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“I bought this battery backup system in 2010 as part of Zoeller combo package which includes both the 507 backup and a M53 pump. It was used to replace the previous homeowner's cheapo pedestal pump, and it has been running strong ever since. Spring in my area is very damp, and a poor sump pump spells doom for your basement if you have anything of value down there.The battery backup has been put through two real-life emergencies as well as multiple "check-up" tests throughout the years, and has preformed perfectly each time.The first of these emergencies was my own doing. I put an aftermarket float switch on the assembly, but it got caught on the sump basin. The result was the M53 pump never turned on. Without hesitation as the water level hit my desired emergency-on point, the 507's alarm sounded and began working to empty the sump pit, and I sheepishly (yet thankful for this backup's performance) readjusted the float I put on the M53.Today is the second time the 507 was put in emergency use. The M53 base sump wasn't able handle all the melted snow and rain we have been overwhelmed with. It was coming in slightly faster than it was going out! Even with the M53 pumping its heart out, the water hit the 507's emergency float switch, and the 507 began helping to egress the sump pit hand-in-hand with the M53. The alarm sounded letting me know of the problem, and I watched as the the two pump's combined work got the pit's water level back under control.I am using a standard group 27 deep cycle battery found off the rack of pretty much any store that carries batteries.Confidence and dependability come at a price. This one is clearly worth it.”
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Posted 1 year ago
“the backup pump can airlock very easily if you just simply follow the instruction. don't glue the pump directly into the tee because you will have to cut the tee in order to fix it. I had to adjust it after the first try and it was not fun. I should have read more carefully on some of the other comments. I also agree the build-in check value is not the best quality one, it will probably fail and cause more issues for the main pump later.”
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Posted 1 year ago
“I receive it and installed it with no problem. a must have for any home owner with a finished basement. highly recommended”
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Posted 1 year ago
“Decided to finally put my worries to rest and installed a whole new setup, Zoeller M53 with the 507 backup. Old pump was 10 years old and figured it's time. Purchased both of these items separately and plumbed myself, and trust me, I am no plumber, but it wasn't hard. Zoeller has great tech support if you need them. The supplied check valve screws right into the main M53 and has it's own built in weep hole, so no need to drill anything. I took the advise of others, and did not glue backup pump directly into supplied T, used a rubber splice as the built in check valve in the backup does have two screws if ever needed to be replaced. All the electrical hookups were straight forward. I unplugged the main cord of my M53 to test the backup and everything worked. Now I can be gone and feel comfortable that I have a backup system in place. Have had two failures in the past 10 years, which were both due to power outages.”
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Posted 1 year ago
“Fantastic add-on for my zoeller pump. installs in about 45 minutes. A real piece of mind!”
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Posted 1 year ago
“Installed this after we lost power one storm. Haven’t had it kick on so I do not know how long it will last. Tested it out and not that loud. Easy to install.”
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Posted 1 year ago
“good quality worth the $$”
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Posted 1 year ago
“It is a nice product but few parts could have come pre-installed such as the floating mechanism to the pump (pump to the T pipe shpuld have been glued pre shipping and the float to its housing that it needs a little piece that was missing from the part-only I had to wait for another one to show up to return the missing parts. Otherwise a nice product. That is the only reason fro 3 starts otherwise 4 or 5.”
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Posted 1 year ago