Battery Backup Sump Pump Comparison - August 2025

Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you9.8
1WayneWAYNE - 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
9.6 Easy installation9.6 Noise level9.4 worth the moneyWhy we love it
Easy to install in 15 minutes.
Quiet operation for peace of mind.
Reliable during power outages.
9.7
2THE BASEMENT WATCHDOGTHE BASEMENT WATCHDOG Combo Model CITE-33 1/3 HP Primary and Battery Backup Sump Pump System with 24 Hour a Day Monitoring Controller
9.6 Noise level9.4 Easy installation9.1 worth the moneyWhy we love it
Easy installation with minimal plumbing knowledge.
Energy-efficient, saves on electricity bills.
Quiet operation, providing peace of mind.
9.5
3THE BASEMENT WATCHDOGTHE BASEMENT WATCHDOG Model BW-27AGM Maintenance Free (AGM) Sump Pump Battery
8.9 Easy installation8.6 Noise level8.6 Long lifeWhy we love it
Maintenance-free design for easy use.
Reliable backup for peace of mind.
Highly rated by satisfied users.
Battery Backup Sump Pump Buyer's Guide

Introduction to Battery Backup Sump Pump
A battery backup sump pump is a device that is used to help keep your basement or crawl space dry by pumping out any water that collects in the sump pit. It is designed to switch on automatically when the water level reaches a certain height, and can be used to prevent flooding or water damage in the event of a power outage, or when the primary sump pump fails to operate. When choosing a battery backup sump pump, there are a few important factors to consider, including size, power, and features.
Types of Battery Backup Sump Pump
Battery backup sump pumps come in a variety of styles, including submersible, pedestal, and combination models. Submersible models are designed to fit in the sump basin, while pedestal models are mounted above the basin. Combination models are a combination of the two, with the motor mounted above the sump and the pump inside the basin. Each type has its own advantages and disadvantages, and the type you choose will depend on your specific needs.
Size
The size of your battery backup sump pump is an important factor to consider. The pump should be powerful enough to handle the amount of water in the sump pit, but not so powerful that it overloads the battery. The size of the pump will also depend on the size of the sump pit, so it’s important to measure the pit before making a purchase.

Power
Battery backup sump pumps are powered by either a rechargeable battery or a plug-in AC power adapter. Rechargeable batteries are typically more expensive, but they are more reliable and can last up to five years or more. AC adapters are less expensive, but they require an outlet to operate and may not be as reliable.
Features
Battery backup sump pumps typically come with several features, including alarms, LED lights, and other safety features. The alarm will sound when the water level reaches a certain height, alerting you to the need to pump out the water. LED lights can be used to indicate when the pump is running and when the battery is low. Other features may include a manual override switch, a check valve, and a float switch.
Maintenance
Battery backup sump pumps require regular maintenance to ensure they are working properly. The pump should be checked periodically for any leaks or other problems, and the battery should be tested regularly to make sure it is working properly. If any problems are found, they should be addressed immediately to prevent further damage or water damage.

Our ranking system
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