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๐ Stay dry, stay worry-free โ power your peace of mind!
The Basement Watchdog BW-27AGM is a maintenance-free AGM standby battery engineered to provide up to 80 hours of backup power for Basement Watchdog sump pump systems. Its robust design supports multiple models, including older units, ensuring reliable, long-lasting sump pump operation without the hassle of fluid maintenance. Highly rated and trusted, itโs the essential safeguard for any homeโs flood protection setup.






| ASIN | B077XL42DJ |
| Best Sellers Rank | #20,610 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Water Pump Accessories |
| Brand | BASEMENT WATCHDOG |
| Brand Name | BASEMENT WATCHDOG |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 715 Reviews |
| Included Components | GLENTRONICS - BW-27AGM |
| Item Dimensions | 8 x 12 x 12 inches |
| Item Type Name | GLENTRONICS - BW-27AGM |
| Item Weight | 22.6 kg |
| Item dimensions L x W x H | 8 x 12 x 12 inches |
| Manufacturer | THE BASEMENT WATCHDOG Store |
| Manufacturer Part Number | GLENTRONICS - BW-27AGM |
| Manufacturer Warranty Description | Warranty |
| Model Number | BW-27AGM |
| Number of Items | 1 |
| Number of Pieces | 1 |
| UPC | 717301122538 |
| Unit Count | 1 Count |
H**Y
OK battery for old Watch Dog back up sump pump
Worked with my old Watchdog battery back-up sump pump which is probably 15 years old. or more. (Yellow box and yellow pump, battery probe attaches to positive terminal to this battery to ) Nice that I did not have to add acid to the battery, but not keen about the battery terminals which are 2 bolts and 4 washers which are provided. Yes, it likely does weigh around 50 pounds. The extra $30 more I paid on amazon than at a big box store 25 miles away was worth it to this senior lady!
S**L
Perfect replacement battery!
Excellent battery and easy to replace 8 year old battery that came with my original Basement Watchdog system. Love that itโs maintenance free and no acid or distilled water to add.
S**M
Ease of handling
Shippped properly. Easy to handle and install.
D**.
OEM part. Perfect.
Manufacturers part, quick shipping. Works perfectly.
M**S
Sump pump backup battery
Great battery, delivered right to your door.
C**.
Battery working find
Backup battery subpump
C**B
Solid
I just installed this battery with an inverter over the weekend to provide backup power to my sump pump. Installation was easy. Note: This bad boy is heavy!
C**D
battery arrived in good condition
ordered in connection with an inverter for sump pump back up - so far so good.
Trustpilot
1 day ago
3 weeks ago