Yes! If you have a pump that runs even occasionally, you should have a backup system, powered by either a battery or self-starting generator. When an electric pump fails, you risk substantial seepage and water damage. An adequately sized backup system prevents this kind of catastrophe.
More Reasons to Have a Backup Battery System for Your Sump Pump
Most people realize they need a backup sump pump one day too late, after the basement has flooded due to a power outage or sump pump failure. They then find out that home insurance does not cover flood damages to the finished basement. Nor does it cover mold remediation, should that become necessary. So, they pick up a pump in a store but nobody warns them that it cannot keep up with the primary pump although it will be called on during the year's worst storms, it is less reliable than the not-so-reliable primary pump it is supposed to back up, it may interfere with the primary pump float or its check valve (causing basement flooding), and within 2–5 years it needs replacing.
Click on the following link to find out how to have a lifetime guaranteed Atlas Battery-Backup Sump installed: www.atlasrestoration.com