The Basement Watchdog

The Basement Watchdog maintenance-free battery is designed in conjunction with our sump pump systems, making them the perfect power source for your pumping needs. This allows your backup pump to run continuously for hours or intermittently for days to keep your basement dry.

The standby construction of The Basement Watchdog Maintenance Free (AGM) Sump Pump Battery (Model BW27AGM) allows it to last longer and stay viable for years. Its design and construction ensure the battery is kept at peak charge without having to be discharged and recharged to maintain its health.

Our maintenance-free Basement Watchdog batteries are designed to power sump pumps, which means they last longer and perform better than standard automotive or deep-cycle batteries.

If you are looking for a maintenance-free option, The Basement Watchdog AGM battery is your solution. No battery fluid to add, no water every 6 months—just connect the system and you are ready to go. All current Basement Watchdog battery backup and combination systems are designed to accommodate the maintenance-free AGM battery.

The Basement Watchdog’s industry-leading service department, located here in the U.S., is staffed by a team of experts. We’re here to help for the life of your pump, battery or accessory, from installation day to troubleshooting years from now. Our top priority is providing you with the best customer experience anywhere, and we offer free lifetime support. Call us at (800) 991-0466.

The Basement Watchdog has been protecting homes like yours for 35+ years and continues to be a market leader. We build the most dependable, user-friendly pumps in the industry using intelligent design, premium components, and quality manufacturing practices that include thoroughly testing every single unit. You can be confident that The Basement Watchdog is watching out for you!