There's more than one kind of sump pump battery backup, and knowing the difference can help you decide if it's worth buying ...

Smart sump pump battery backups allow you to receive notices on your phone, telling you that your backup system has taken over from the primary system. Reasons for Sump Pump Battery Backup Systems.

When your primary pump—or the power—fails, these top-tested models are ready to step inIn CR's lab, we measured the flow rate and battery draw of 11 sump pump backup systems.By Jesse WillWhen ...

Battery-powered backup pumps are the most common backup system, designed to take over when your main pump loses power or stops functioning. These systems typically use a 12-volt deep-cycle battery ...

A battery backup sump pump steps in automatically if the main pump fails, giving you an extra layer of protection. This ensures that your sump pump continues working without interruption, ...

We've tested and reviewed products since 1936. Read CR's review of the Superior Pump 92900 Battery Backup Submersible Sump Pump sump pump to find out if it's worth it.