Registration Videos Brochures Support Contact Us Icon 800.991.0466 Icon Where to Buy
The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Model BW-27AGM
** The Big Dog, Special, and Big Combo systems that include the remote terminal are compatible with the Basement Watchdog Maintenance Free/AGM Battery.
Maintenance Free AGM Battery Brochure
Maintenance Free AGM Battery Manual
Maintenance Free AGM Battery Canadian Manual
The Basement Watchdog batteries are 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.
Both our wet-cell and 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 has been protecting homes for over 30 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.
Purchase a Basement Watchdog AGM battery with a Basement Watchdog backup or combination system and receive an extra year of warranty on the pump.
The Basement Watchdog Parallel Jumper Cable allows for extended sump pump runtime by connecting multiple Basement Watchdog standby batteries to the Basement Watchdog backup sump pump system.
* Based on a 10% duty cycle. Run times may vary based on inflow of water. ** Older versions, purchased before 2014 of the Basement Watchdog Special, Basement Watchdog Big Dog and Basement Watchdog Big Combo systems that include the Remote Terminal are compatible with the Basement Watchdog Maintenance Free/AGM Battery. Using a maintenance free battery with an older non-compatible system may cause false alarms. Please call us at (800) 991-0466 opt. 3 for questions about compatibility.
If at any time you have a question about Basement Watchdog or what you see on this site please e-mail us at mail@glentronics.com or call us toll free at 1-800-991-0466. Once you purchase and install a Basement Watchdog system you will be able to sit back, relax, and feel confident that your basement will remain dry.