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The Basement Watchdog 9 in. H X 10-1/4 in. W X 6-1/2 in. L Maintenance Free Battery For BW-27AGM
The Basement Watchdog 9 in. H X 10-1/4 in. W X 6-1/2 in. L Maintenance Free Battery For BW-27AGM

The Basement Watchdog 9 in. H X 10-1/4 in. W X 6-1/2 in. L Maintenance Free Battery For BW-27AGM

A maintenance-free AGM battery that keeps your backup sump pump running when the power fails - no water top-offs, ever.
The Basement Watchdog MPN BW-27AGM
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This The Basement Watchdog item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

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About Product Overview

The BW-27AGM is a maintenance-free AGM battery built to run a Basement Watchdog backup sump pump system when the power goes out - which, of course, is exactly when you need it most. AGM (absorbed glass mat) construction means there's no water to check or top off and no acid to spill, so it can sit ready in a basement or utility room for the long haul without upkeep.

This is the battery half of a battery-backup sump setup, not the pump itself, so it's meant to pair with a compatible Basement Watchdog backup system to keep water moving out of your sump pit during a storm or blackout. The thermoplastic case resists corrosion and cracking, which matters in the damp, sometimes messy environment sump batteries live in.

Good fit for homeowners who already run a battery-backup sump pump and need a fresh, sealed replacement battery, or anyone setting up backup flood protection for the first time.

  • Maintenance-free AGM (absorbed glass mat) design - no water top-offs
  • Thermoplastic case for durability in wet basement conditions
  • Dimensions: 6-1/2" L x 10-1/4" W x 9" H
  • Brand: The Basement Watchdog
  • Model: BW-27AGM
  • Made in Vietnam

The Details Specifications

Ships Ground Travels by ground for safe handling — common for items with a lithium battery, aerosol, or liquid inside. Nothing extra to do on your end; it simply ships by truck instead of by air.
Brand The Basement Watchdog
Model / MPN BW-27AGM
UPC 717301122538
Weight 50 lbs
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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