If you consider your primary sump pump as being in charge of keeping your basement or crawl space dry, you can think of a battery backup sump pump as the main pump’s insurance provider.

A typical sump pump draws about nine amps, so it won't add much load to the generator. But a generator isn't a perfect ...

To solve this problem, there are battery back-up sump pumps that can function if the main power system breaks down. Back-up sump pumps are a wise choice if one thinks of the potential disasters.

How they work: Battery-powered systems use a float switch to activate the pump when the water level in the sump pit rises. Drawing power from the battery, the pump discharges the water through the ...