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Internet # 205907924

Model # BW-27AGM

Store SKU # 1002274319

Maintenance Free (AGM) Standby Battery

$209.00
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  • Runs your backup pump for more time and for more years of life
  • Hassle-free with no need to add water
  • Designed to power your basement watchdog system
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Product Details

About This Product

The Basement Watchdog Maintenance Free AGM Battery is completely sealed making it the perfect choice for years of reliable service for your battery backup sump pump system without having to add battery fluid or distilled water. This battery is compatible with most Basement Watchdog systems including the Basement Watchdog Emergency (BWE), Basement Watchdog Combination (DFK961, CITE-33), Basement Watchdog Special+ (BWSP+), Basement Watchdog Big Dog+ (BWD12-120C+) and Basement Watchdog Big Combination sump pump system (BW4000, CITS-50) with Special + backup controller. Look for the + on the upper left hand corner of the BWSP+ and BWD12-120C+ control panel to ensure compatibility. This battery will run the various Basement Watchdog sump pump systems intermittently for days. Connect 2 batteries to increase the run time (BWSP+, BWD12-120C+, CITS-50 and BW4000 with Special + backup controller). Parallel battery cables required.

Highlights

  • Maintenance free - no need to add battery fluid or distilled water
  • Compatible with all versions of the Basement Watchdog Emergency (BWE), Basement Watchdog combination (DFK961, CITE-33) and the newest version of the Basement Watchdog special, the special+ (BWSP+), the Basement Watchdog big dog+ (BWD12-120C+) and Basement Watchdog big combination (BW4000, CITS-50) sump pump systems
  • Up to 40-hour protection (based on a 10% duty cycle) on the Basement Watchdog big dog and sump pump system (BWD12-120C+)
  • Up to 48-hour protection (based on a 10% duty cycle) on the Basement Watchdog special + (BWSP+) and Basement Watchdog big combination 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 pump intermittently for days
  • Please note this battery is not compatible with older versions of the Basement Watchdog Special (BWSP), Basement Watchdog Big Dog (BWD12-120C) or Basement Watchdog Big Combination (BW4000) systems
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Product Information

Internet # 205907924

Model # BW-27AGM

Store SKU # 1002274319

Specifications

Dimensions: H 9 in, W 10.25 in, D 6.5 in

Dimensions

Product Depth (in.)

6.5 in

Product Height (in.)

9 in

Product Width (in.)

10.25 in

Details

Amperage (A)

75

Battery Life (hours)

48 hr

Battery Type Required

12-volt

Discharge Flow @ 0 ft. (gallons/hour)

0

Discharge Flow @ 0 ft. (gallons/min)

0

Discharge Flow @ 10 ft. (gallons/hour)

0

Discharge Flow @ 10 ft. (gallons/min)

0

Housing Material

Thermoplastic

Impeller Material

N/A

Included

Battery(s)

Number of Batteries Required

1

Pack Size

1

Product Weight (lb.)

50 lb

Returnable

90-Day

Voltage

12v

Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty

1 Year Limited

Questions & Answers

167Questions
caret
Q:Will this work okay with Liberty 441 backup system? Some say should only use wet cell deep cycle so am confused
by|Apr 10, 2024
1 Answer
Answer This Question

A:  This battery is a 12V/DC deep-cycle AGM battery with a group size of 27 and an Amp hour rating of 75Ah. You should contact Liberty and find out those specifications meet the power demands of that system. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am – 6pm CT Monday through Friday.

by|Apr 11, 2024
    caret
    Q:Will you accept a dead battery for trade in on a new battery?
    by|Apr 4, 2024
    1 Answer
    Answer This Question

    A:  Being the manufacturer we can't speak on behalf of Home Depot but as far as we know they do not offer any core charge credits for old batteries. You can contact your local Home Depot customer service department to verify this. If you have any other questions about this battery or your system feel free to contact our service team at 800-991-0466 option 3.

    by|Apr 5, 2024
      caret
      Q:Why is there water in the battery case? Do I dump it out?
      by|Apr 2, 2024
      1 Answer
      Answer This Question

      A:  If you have fluid in the case from a previous battery that was a wet-cell maintenance battery, that is normal. Those batteries do vent and some of the fluid can collect inside the battery case. You can neutralize any access acid/fluid with baking soda. After that, it's safe to dispose of. For more information, I would recommend contacting our service team at 800-991-0466 option 3.

      by|Apr 3, 2024
        caret
        Q:What is the voltage of the 27AGM battery at full charge?
        by|Mar 19, 2024
        1 Answer
        Answer This Question

        A:  Depending on where the battery is in the charge cycle, it could be anywhere between 12.5V/DC and 14.4V/DC when fully charged. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am – 6pm CT Monday through Friday.

        by|Mar 20, 2024
          Showing 1-4 of 167

          Customer Reviews

          4.6 out of 5

          • 4.6 out of 547 reviews
          • 90% recommend this product
          Filter by:
          Showing 1-10 of 547 reviews
          Easy Setup
          While it is a bit on the heavy side, it was quite easy to setup.
          by
          • Verified Purchase
          • Recommended
          Home depot watchdog AMG battery is exactly what I needed I don't want to be concerned with batter...
          Home depot watchdog AMG battery is exactly what I needed I don't want to be concerned with battery maintenance, and this was the best solution
          by
          • DIY
          • Verified Purchase
          • Recommended
          Battery fully charged when received...
          Battery fully charged when received
          by
          • Verified Purchase
          Easy installation and hookup.
          Easy installation and hookup.
          by
          • Verified Purchase
          • Recommended
          1 found this review helpful
          I bought this one instead of a "wet cell" battery because I wanted a no-maintenance battery. Who ...
          I bought this one instead of a "wet cell" battery because I wanted a no-maintenance battery. Who wants to keep checking the battery and adding water? I was able to hook it up to my Basement Watchdog sump pump system (a primary pump with a battery-powered backup pump) with no problem at all. Just make sure you connect the water level sensor to the positive terminal of the battery so the alarm doesn't keep going off.
          by
          • Verified Purchase
          • Recommended
          15 found this review helpful
          Happy with the Basement Watchdog big combo
          The Basement Watchdog was easy to install. Fitted my 5 gal plastic bucket (12 in opening). Pump worked well but the backup pump not powerful enough to lift 8 ft plus 3 elbows. Changed the 1/3 HP for 1/2 HP which solved the backup test. Used same bucket. Tight but enough space to free the two floats. Resting on small 1 in brick at bottom of sump pit. The backup battery and monitor is great for diagnostic. Shows when charging etc. No power outage yet but brings peace of mind. Worth the investment.
          by
          • Verified Purchase
          I have only had 6 months, but it was super easy to install and NO messy battery acid. Easy to use...
          I have only had 6 months, but it was super easy to install and NO messy battery acid. Easy to use with the Watchdog system. No problem converting it - just wrapped the alarm wire around the bolt in just a few seconds. Super easy. It was well worth extra money being that the other Watchdog battery died after just over 1 year and I had to mess with adding the battery acid. So far, so good.
          by
          • Verified Purchase
          • Recommended
          11 found this review helpful
          Great battery it saved our basement.
          by
          • Verified Purchase
          Get this battery if you are using the Watchdog backup system. It’s worth the money and no need for alarm or maintenance of refilling. Also, no acid to initially pour into the battery itself.
          by
          • Verified Purchase
          My elderly mother called HD and spoke with an associate who steered her to purchasing the WRONG BATTERY for her Watchdog. We are now stuck with this useless battery. Nearly $200 down the drain!
          by
          • Verified Purchase
          Showing 1-10 of 547 reviews