10 Best battery backup for existing sump pumps of 2025

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Best Choice

1

PumpSpy
PumpSpy PS2000C Pre-Assembled SmartPump Combination Wi-Fi Connected 1/2HP Primary Sump Pump and 12V Battery Backup Sump Pump with Internet Monitoring & Alerts, Water Alarms for Basements
Main highlights

Key Features and Benefits
Easy-to-install, offers 24/7 remote monitoring via Wi-Fi, and powerful dual-pump system ensuring robust basement protection against flooding.

Ideal Use Cases
Perfect for homeowners with a DIY mindset, basements prone to flooding, and situations requiring constant monitoring and reliability during power outages.

Customer Reviews Highlight
Most praised for its ease of installation and the peace of mind provided by the effective remote monitoring and alerts system.
9.7

Exceptional

Our Rating

9.3
Noise level

9.1
Easy installation

8.0
Long life
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Value for Money

2

PumpSpy
PumpSpy 2000W Sump Pump Battery Backup System, Safe Back Up System for Emergency and Power Outage, Superior Home Silent Sump Pump Backup Power Supply with Intelligent Cooling
Main highlights

Advanced Charging and Cooling
The system features overcharge prevention and smart cooling for safety and longevity.

Ideal for Power Outages
Perfect for powering sump pumps during outages, ensuring basement safety.

Quiet and Reliable Operation
Customers praise its quiet performance and reliability compared to older models.
Key specs
- Power Source:AC/DC
- Size:2000W - LCD
- Material:Aluminum
- Voltage:120 Volts AC
- Horsepower:N/A
9.6

Exceptional

Our Rating

9.3
Easy installation

9.3
Noise level

8.0
Long life
3

Miumoon
Miumoon 1500W Primary Sump Pump Battery Backup, Basment Protection Backup Inverter, Black, LCD Display, Auto Switches for Continuous Sump Pump Operation, Basement Emergency and Power Outage Backup

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Main highlights

Automatic Switchover for Continuous Operation
Switches to battery power automatically during outages, ensuring uninterrupted sump pump operation.

Ideal for Basement Flood Protection
Designed for basements to prevent flooding during heavy rain or power outages.

High-Quality Build and Quiet Operation
Praised for its solid construction and quiet performance, even during battery operation.
Key specs
- Power Source:Battery Powered
- Size:17.44 x 9.29 x 5.39 inches
- Material:Aluminum
- Voltage:N/A
- Horsepower:N/A
9.4

Excellent

Our Rating

9.3
Noise level

9.1
Easy installation

8.0
Long life
4

Westinghouse

Westinghouse - 12V Battery Backup System - Compatible with Any Existing Primary Sump Pump - Up to 2,700 Gallons Per Hour
9.3

Excellent

Our Rating
5

VEVOR
VEVOR 2000W Sump Pump Battery Backup with LCD, Automatically Shifts to Inverter Power Ensuring Uninterrupted Operation, Essential for Emergencies & Power Failures

19% Off
Main highlights

Unmatched Power and Reliability
2000W output supports two pumps, ensuring uninterrupted operation during power outages.

Essential for Emergencies
Ideal for maintaining a dry basement during power failures and heavy rains.

Real-Time Monitoring
Customers praise the informative LCD display for easy monitoring of system status.
Key specs
- Power Source:Battery
- Size:17.32 x 6.81 x 4.02 inches
- Material:N/A
- Voltage:N/A
- Horsepower:N/A
9.1

Excellent

Our Rating
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6

THE BASEMENT WATCHDOG
THE BASEMENT WATCHDOG Model BW-27AGM Maintenance Free (AGM) Sump Pump Battery
Main highlights

Maintenance Free Design
No need for battery fluid or distilled water.

Ideal for Backup Power
Provides up to 80-hour protection for sump pumps.

User-Friendly Setup
Easy installation praised by many customers.
Key specs
- Power Source:N/A
- Size:N/A
- Material:N/A
- size:8 x 12 x 12 inches
- power source:Battery Powered
8.9

Very Good

Our Rating

8.4
Easy installation

8.2
Tech Support

8.0
Instruction
7

VIOPUMPO

2500 Watt Sump Pump Battery Backup System, Pure Sine Wave Output, Professional Backup System in The Event of a Power Outage, Remote Controller with LCD Screen, Automatic Grid and Battery Switchover
8.8

Very Good

Our Rating
8

VOONKE

VOONKE 1500W Sump Pump Battery Backup Power System,Basment Protection Sump Pump Inverter with LCD Display and Automatic Battery Backup Switching for Basement Emergency and Power Outage Backup, (Black)
8.7

Very Good

Our Rating
9

briidea

Briidea Battery Backup Sump Pump System for Basement, 2.4G & 5G WiFi, 9 LED Indicators, Smart Alarm, Electronic Water Level Sensor, 12V Battery Compatible (Battery Not Included)
8.5

Good

Our Rating
10

Wayne
WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty
Main highlights

Efficient Design and Installation
Preassembled system installs in 15 minutes, no drilling needed.

Ideal for Indoor Use
Perfect for basements during heavy water flow, even without power.

Quiet Performance
Customers praise its ultra-quiet operation, reducing household noise.
8.4

Good

Our Rating

9.5
Easy installation

9.5
Noise level

9.3
worth the money

10 Best battery backup for existing sump pumps of 2025

1

PumpSpy PS2000C Pre-Assembled SmartPump Combination Wi-Fi Connected 1/2HP Primary Sump Pump and 12V Battery Backup Sump Pump with Internet Monitoring & Alerts, Water Alarms for Basements

9.3

9.1

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

PumpSpy 2000W Sump Pump Battery Backup System, Safe Back Up System for Emergency and Power Outage, Superior Home Silent Sump Pump Backup Power Supply with Intelligent Cooling

9.3

9.3

8.0

3

Miumoon 1500W Primary Sump Pump Battery Backup, Basment Protection Backup Inverter, Black, LCD Display, Auto Switches for Continuous Sump Pump Operation, Basement Emergency and Power Outage Backup

9.3

9.1

8.0

4

Westinghouse - 12V Battery Backup System - Compatible with Any Existing Primary Sump Pump - Up to 2,700 Gallons Per Hour

5

VEVOR 2000W Sump Pump Battery Backup with LCD, Automatically Shifts to Inverter Power Ensuring Uninterrupted Operation, Essential for Emergencies & Power Failures

6

THE BASEMENT WATCHDOG Model BW-27AGM Maintenance Free (AGM) Sump Pump Battery

8.4

8.2

8.0

7

2500 Watt Sump Pump Battery Backup System, Pure Sine Wave Output, Professional Backup System in The Event of a Power Outage, Remote Controller with LCD Screen, Automatic Grid and Battery Switchover

8

VOONKE 1500W Sump Pump Battery Backup Power System,Basment Protection Sump Pump Inverter with LCD Display and Automatic Battery Backup Switching for Basement Emergency and Power Outage Backup, (Black)

9

Briidea Battery Backup Sump Pump System for Basement, 2.4G & 5G WiFi, 9 LED Indicators, Smart Alarm, Electronic Water Level Sensor, 12V Battery Compatible (Battery Not Included)

10

WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty

9.5

9.5

9.3

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