$209 The Basement Watchdog Maintenance Free (AGM)
Updated September 16, 2026
| Lot number | 109c |
| Auction | Mega Auction Madness |
| Date | September 22, 2026 at 6:00 PM CDT |
| Auction house | Big D Discount |
| Location | Dallas, Texas |
Standby Battery for Backup Sump Pumps (BW-27AGM) Condition: New(other) Damaged?: No In Packaging?: Yes Assembly Required?: No Star Rating: 0.0 Missing Parts?: No Functional?: Yes Brand: BASEMENT WATCHDOG Model: BW-27AGM Retail Price: $209 Maintenance free - no need to add battery fluid or distilled water Up to 40-hour protection (based on a 10% duty cycle) on the Basement Watchdog Big Dog (BWD12-120C+) Up to 48-hour protection (based on a 10% duty cycle) on the Basement Watchdog Spec sump pump system (BW4000, CITS-50) Up to 80-hour protection (based on a 10% duty cycle) on the Basement Watchdog Emergency (BWE) and Basement Watchdog Combination sump pump system (DFK961, CITE-33) Runs various Basement Watchdog sump pump systems int e 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
