Updated:March, 2026

10 Best Zoeller Battery Backup Sump Pump of 2026

Best Choice

9.9

Outstanding

Zoeller

Zoeller 508-0005 Aquanot 508 Battery Back-Up System

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Why We Love It

12 volt highly efficient noncorrosive pump construction
Integrated check valve
Quick disconnect discharge
Aluminum seal pocket & cooling plate
Hand built & 100% tested in USA

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Why We Love It

12 volt highly efficient noncorrosive pump construction
Integrated check valve
Quick disconnect discharge
Aluminum seal pocket & cooling plate
Hand built & 100% tested in USA

How We Find the Top Picks

We use smart data tools to review thousands of products and stores, analyzing ratings, reviews, and popularity trends to highlight what truly matters to shoppers like you.

Our experts then refine the results, blending AI insights with real user experiences to deliver accurate, up-to-date rankings that help you choose with confidence.

9.5

Excellent

Zoeller

Zoeller 508-0006 AquaNot Spin 508 ProPak – Complete Sump Pump System with M53 Primary Pump & 12 V Battery Backup, Self-Testing, Check Valve & Float Switch - Basement Flood Protection

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Main Highlights

Includes the 3/10 HP Model M53 primary pump, AquaNot Spin 508 controller, 12 V DC backup pump, check valve, float switch(es), and PVC discharge piping everything needed for reliable basement sump protection
The DC backup pump delivers up to 5.5 hours of continuous pumping (or 48+ hours at 10% duty cycle) on a fully charged battery, keeping your basement dry even during extended outages
The controller continually tests functionality and provides alerts for power outages, high-water conditions, switch obstructions, and pump faults giving real-time peace of mind
Engineered with a double-sealed 12 V DC pump, corrosion-resistant materials, and a glass-filled thermoplastic vortex impeller for efficient, long-lasting performance
The ProPak comes pre-plumbed with 1-1/2" Sch.-40 PVC piping, includes a check valve and float switch, and is 100% factory tested for quality so you can install with confidence and minimal hassle

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Main Highlights

Includes the 3/10 HP Model M53 primary pump, AquaNot Spin 508 controller, 12 V DC backup pump, check valve, float switch(es), and PVC discharge piping everything needed for reliable basement sump protection
The DC backup pump delivers up to 5.5 hours of continuous pumping (or 48+ hours at 10% duty cycle) on a fully charged battery, keeping your basement dry even during extended outages
The controller continually tests functionality and provides alerts for power outages, high-water conditions, switch obstructions, and pump faults giving real-time peace of mind
Engineered with a double-sealed 12 V DC pump, corrosion-resistant materials, and a glass-filled thermoplastic vortex impeller for efficient, long-lasting performance
The ProPak comes pre-plumbed with 1-1/2" Sch.-40 PVC piping, includes a check valve and float switch, and is 100% factory tested for quality so you can install with confidence and minimal hassle

9.5

Excellent

Generic

Basement Sentry by Zoeller STBB200 Battery Backup Sump Pump System Plus 45 GPM, Green

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Main Highlights

Self-monitoring system gives real time status alerts via text, email, or app that backup pump and battery are drawing power correctly and working as intended
Built-in WiFi (no additional components needed)
Automatic self-testing for true peace of mind
Maintenance-free battery when used with Basement Sentry brand battery
Self-monitoring system gives real time status alerts via text, email, or app that backup pump and battery are drawing power correctly and working as intended

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Main Highlights

Self-monitoring system gives real time status alerts via text, email, or app that backup pump and battery are drawing power correctly and working as intended
Built-in WiFi (no additional components needed)
Automatic self-testing for true peace of mind
Maintenance-free battery when used with Basement Sentry brand battery
Self-monitoring system gives real time status alerts via text, email, or app that backup pump and battery are drawing power correctly and working as intended

9.2

Excellent

Zoeller

Zoeller 508-0007 AquaNot Spin 508 ProPak – Complete Sump Pump System with M98 Primary Pump & 12 V Battery Backup, Self-Testing, Check Valve & Float Switch - Basement Flood Protection

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Main Highlights

Includes the 1/2 HP Model M98 primary pump, AquaNot Spin 508 controller with 12 V DC backup pump, check valve, float switch(es), and PVC discharge piping everything needed for reliable basement sump protection
The DC backup pump delivers up to 6 hours of continuous pumping (or 48+ hours at 10% duty cycle) on a fully charged battery, keeping your basement dry even during extended outages
The controller continually tests functionality and provides alerts for power outages, high-water conditions, switch obstructions, and pump faults giving real-time peace of mind
Engineered with a double-sealed 12 V DC pump, corrosion-resistant materials, and a glass-filled thermoplastic vortex impeller for efficient, long-lasting performance
The ProPak comes pre-plumbed with 1-1/2" Sch.-40 PVC piping, includes a check valve and float switch, and is 100% factory tested for quality so you can install with confidence and minimal hassle

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Main Highlights

Includes the 1/2 HP Model M98 primary pump, AquaNot Spin 508 controller with 12 V DC backup pump, check valve, float switch(es), and PVC discharge piping everything needed for reliable basement sump protection
The DC backup pump delivers up to 6 hours of continuous pumping (or 48+ hours at 10% duty cycle) on a fully charged battery, keeping your basement dry even during extended outages
The controller continually tests functionality and provides alerts for power outages, high-water conditions, switch obstructions, and pump faults giving real-time peace of mind
Engineered with a double-sealed 12 V DC pump, corrosion-resistant materials, and a glass-filled thermoplastic vortex impeller for efficient, long-lasting performance
The ProPak comes pre-plumbed with 1-1/2" Sch.-40 PVC piping, includes a check valve and float switch, and is 100% factory tested for quality so you can install with confidence and minimal hassle

9.0

Excellent

Zoeller

Zoeller M53 Mighty-mate Submersible Sump Pump, 1/3 Hp

Free Shipping

Main Highlights

Automatic with float activated switch
Non-clogging vortex impeller design
Durable cast iron switch case, motor, and pump housing
Cast iron switch case, motor, and pump housing, plastic base

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Main Highlights

Automatic with float activated switch
Non-clogging vortex impeller design
Durable cast iron switch case, motor, and pump housing
Cast iron switch case, motor, and pump housing, plastic base

8.8

Very Good

Zoeller

Zoeller 507-0005 Basement Sentry Battery Backup Pump

Free Shipping

Main Highlights

Provides extra protection when the primary AC pump fails due to power outages, when the primary pump fails
All models have battery burn out and overcharge. Control device -Reliable low voltage float switch
Model 507 has a self contained 10 amp battery recharger. Battery case made from noncorrosive polyethylene. Contains lock strap
All systems are fully solid state automatic controllers with alarms, light indicators and have warning systems
NOTE: Sump Pump and Battery are not included, as they must be purchased separately. Alarm Off - yellow light indicates the buzzer is currently silenced

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Main Highlights

Provides extra protection when the primary AC pump fails due to power outages, when the primary pump fails
All models have battery burn out and overcharge. Control device -Reliable low voltage float switch
Model 507 has a self contained 10 amp battery recharger. Battery case made from noncorrosive polyethylene. Contains lock strap
All systems are fully solid state automatic controllers with alarms, light indicators and have warning systems
NOTE: Sump Pump and Battery are not included, as they must be purchased separately. Alarm Off - yellow light indicates the buzzer is currently silenced

8.6

Very Good

Aquanot

Zoeller 508-0014 Aquanot Fit 12-volt DC Battery Back-up Sump Pump System with Built-in Wi-Fi for Z Control Connectivity

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Main Highlights

the Aquanot 508 DC sump pump works alongside submersible or pedestal pumps to provide up to 6 hours of continuous high performance pumping when the primary pump power is interrupted or more capacity is needed. 35 GPM at 10' at 12.7 volts.
The Fit controller is an automatic charging and protection system, including a low battery indicator and alarm, redundant high water switch, self-testing technology, and built-in Wi-Fi.
Self-testing and smart diagnostics, Early warning diagnostics, Z Control Enabled notification and remote access, Z Control Cloud and App
An integrated DC pump discharge check valve, additional AC pump check valve, tee, and adapter are included for easy installation.
Note: 12V battery is NOT included. Primary pump is NOT INCLUDED.

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Main Highlights

the Aquanot 508 DC sump pump works alongside submersible or pedestal pumps to provide up to 6 hours of continuous high performance pumping when the primary pump power is interrupted or more capacity is needed. 35 GPM at 10' at 12.7 volts.
The Fit controller is an automatic charging and protection system, including a low battery indicator and alarm, redundant high water switch, self-testing technology, and built-in Wi-Fi.
Self-testing and smart diagnostics, Early warning diagnostics, Z Control Enabled notification and remote access, Z Control Cloud and App
An integrated DC pump discharge check valve, additional AC pump check valve, tee, and adapter are included for easy installation.
Note: 12V battery is NOT included. Primary pump is NOT INCLUDED.

8.3

Very Good

Zoeller

Zoeller 508-0005 Aquanot 508 Battery Back-Up System by Zoeller

Free Shipping

Main Highlights

Zoeller 508-0005 Aquanot 508 Battery Back-Up System
10.50 x 8.50 x 8.50 inches

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Main Highlights

Zoeller 508-0005 Aquanot 508 Battery Back-Up System
10.50 x 8.50 x 8.50 inches

8.1

Very Good

Zoeller

Zoeller 540 FLEX Water-Powered Backup Sump Pump System – No Battery or Electricity Required - Installs Horizontally or Vertically - Works During Sump Pump Failure - ¾″ Inlet / 1-½″ Discharge

Free Shipping

Main Highlights

Ultimate Backup Protection During Power Failures This water-powered backup pump kicks in when your primary sump pump fails or when a blackout hits, keeping your basement dry without relying on batteries or electricity
High Efficiency Water-Driven Design Utilizes municipal water pressure (40-80 psi) to drive removal of up to 2 gallons of sump water for every 1 gallon of supply water used
Flexible Installation Horizontal or Vertical Fits small sump pits (as small as 18 × 22) and can be mounted overhead or in the ceiling joists to keep the line safe and secure
Works with Any Brand of Primary Pump Designed as a seamless backup system, the 540 FLEX can integrate with your existing sump pump setup and activates automatically when needed
Durable Construction & Peace of Mind Warranty Made of non-corrosive materials, includes a 3-year limited warranty from Zoeller, and designed for reliable standby use even in tough conditions

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Main Highlights

Ultimate Backup Protection During Power Failures This water-powered backup pump kicks in when your primary sump pump fails or when a blackout hits, keeping your basement dry without relying on batteries or electricity
High Efficiency Water-Driven Design Utilizes municipal water pressure (40-80 psi) to drive removal of up to 2 gallons of sump water for every 1 gallon of supply water used
Flexible Installation Horizontal or Vertical Fits small sump pits (as small as 18 × 22) and can be mounted overhead or in the ceiling joists to keep the line safe and secure
Works with Any Brand of Primary Pump Designed as a seamless backup system, the 540 FLEX can integrate with your existing sump pump setup and activates automatically when needed
Durable Construction & Peace of Mind Warranty Made of non-corrosive materials, includes a 3-year limited warranty from Zoeller, and designed for reliable standby use even in tough conditions

8.1

Very Good

Zoeller

Zoeller 508-0007 Aquanot 508 ProPak98 Preassembled Sump Pump System with Battery Back-Up

Free Shipping

Main Highlights

Includes: Model 98 12-volt pump, Model 508 Aqua not, 12 Volt DC backup system with pump, check valve, float switch and piping
Plumbed in 1-1/2" Such 40 PVC pipe
Comes fully assembled and ready to install in your clear water sump
Extra protection when the primary AC pump fails due to power outages
Fully solid state automatic 10A charger/controller with alarm, light indicator and warning system

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Main Highlights

Includes: Model 98 12-volt pump, Model 508 Aqua not, 12 Volt DC backup system with pump, check valve, float switch and piping
Plumbed in 1-1/2" Such 40 PVC pipe
Comes fully assembled and ready to install in your clear water sump
Extra protection when the primary AC pump fails due to power outages
Fully solid state automatic 10A charger/controller with alarm, light indicator and warning system

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