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Internet # 100055241

Model # BWE

Store SKU # 646661

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Emergency Battery Backup Sump Pump System

$178.46
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  • 24-hour-a-day monitoring of pump, power and battery conditions
  • Dual micro-reed float switch ensures pump turns on when needed
  • If power goes out, battery backup pump kicks in, keeping you dry
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Product Details

About This Product

The Basement Watchdog Emergency battery backup sump pump system can be easily installed in either a normal sized or narrow sump pit and automatically begins pumping during power outages, when the main pump fails or when water flow exceeds the capacity of the main pump. Its unique 24 hour a day monitoring system sounds an alarm when maintenance is needed, or a problem arises. A display panel indicator light will identify the cause of the alarm and the proper corrective action. The dual float switch provides double the protection and will activate the backup pump when either float is raised.

Highlights

  • Pumps 2,000 GPH at 0 ft. of lift and 1,000 GPH at 10 ft. of lift
  • User-friendly control panel monitors pump, power and battery conditions 24 hours a day and provides visual and audible alarms to describe what to do for easy maintenance
  • Dual float switch provides 2 times the protection
  • Provides days of intermittent pumping power on a single battery charge
  • Compatible with both wet cell and maintenance-free AGM batteries
  • Automatic 0.4 Amp charger
  • Compact pump can be installed even in small or narrow sump pits
  • Detailed instructions with over 90 pictures walk you through the simple installation process
  • Free lifetime technical support
  • Includes 24 hour a day monitoring control unit with a dual float switch, pump with a 1-1/2 in. PVC pipe adapter, battery box and charger (battery not included - sold separately)
  • 2 Year limited warranty
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 100055241

Model # BWE

Store SKU # 646661

Specifications

Dimensions: H 6.5 in, W 8.5 in, D 4.5 in

Dimensions

Product Depth (in.)

4.5 in

Product Height (in.)

6.5 in

Product Width (in.)

8.5 in

Details

Amperage (A)

0.4 A

Battery Life (hours)

50 hr

Battery Type Required

12-volt

Discharge Flow @ 0 ft. (gallons/hour)

2000

Discharge Flow @ 0 ft. (gallons/min)

33.33

Discharge Flow @ 10 ft. (gallons/hour)

1000

Discharge Flow @ 10 ft. (gallons/min)

16.67

Housing Material

Thermoplastic

Impeller Material

‎Acrylonitrile Butadiene Styrene (ABS)

Included

Control Box, Hardware, Pump Hookup

Power Source

Battery Powered

Product Weight (lb.)

3.5 lb

Returnable

7-Day

Voltage

12v

Warranty / Certifications

Certifications and Listings

UL Listed

Manufacturer Warranty

2 Year Limited

Questions & Answers

How long does the backup battery last?
ByAug 20, 2026
1 Answer | 
Answer This Question

How long the battery will remain charged depends entirely on the capacity of the battery. The recommended battery for this system, the Basement Watchdog Maintenance-Free AGM Battery will remain charged for 80 hours during an outage based on a 10% duty cycle. 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|Aug 21, 2026


    What type of battery is needed for this backup sump pump
    ByJul 28, 2026
    1 Answer | 
    Answer This Question

    It requires the use of a 12V/DC deep-cycle battery. We recommend using our model BW-27AGM Basement Watchdog Maintenance Free AGM Battery with this 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|Sep 16, 2026

      (1)

      How to stop the alarm.
      ByJul 22, 2026
      1 Answer | 
      Answer This Question

      If your system is alarming, I would recommend reaching out to our customer support team at 800-991-0466 option 3 so we can help troubleshoot this with you. We are available to take incoming calls from 8am - 6pm CT Monday through Friday.

      By|Jul 23, 2026


        Watchdog backup sump 172.93 does it come with battery?
        ByJul 14, 2026
        1 Answer | 
        Answer This Question

        The battery is not included with the system and is a separate purchase. We recommend using our model BW-27AGM Basement Watchdog Maintenance Free AGM Battery with this 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|Jul 14, 2026


          How powerful is this pump.
          ByJun 16, 2026
          1 Answer | 
          Answer This Question

          This pump has a capacity of 2,000 GPH at 0 ft. of lift and 1,000 GPH at 10 ft. of lift. 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|Jun 16, 2026


            Is battery included with this purchase?
            ByMay 19, 2026
            1 Answer | 
            Answer This Question

            The battery is not included with the system and is a separate purchase. We recommend using our model BW-27AGM Basement Watchdog Maintenance Free AGM Battery with this 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|Jun 24, 2026

              (1)

              What is the minimum depth the pump needs to be set into the sump hole? The sump hole is narrow and shallow so pump needs to be set above the main pump. This will have some of the pump sticking out above the hole.
              ByApr 7, 2026
              2 Answers | 
              Answer This Question

              Follow up question: So it will be able to pump water as long as it sits in at least one inch of water?

              By|Apr 13, 2026

                Every application is different, so the minimum depth will vary for each setup. Because the sump pit in this application is narrow and the backup pump must sit above the primary pump, it’s normal for part of the backup pump to extend above the top of the pit. Just note that the backup pump needs at least 1 inch of water covering the bottom of the pump in order to remove water. It is also important to note that the most important height is the float switch, since that is the device that will activate the pump when it encounters water. 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 7, 2026


                  Is battery included
                  ByJan 27, 2026
                  1 Answer | 
                  Answer This Question

                  The battery is a separate purchase and not included with the system. We recommend using the Basement Watchdog AGM Maintenance Free battery with this system (Model BW-27AGM). For more information you can contact our service team at 800-991-0466 option 3 or email us at service@glentronics.com

                  By|Jun 10, 2026


                    Viewing 1-8 of 88

                    Customer Reviews

                    4 out of 5

                    • 4 out of 292 reviews
                    • 70% recommend this product
                    Filter by:
                    Showing 1-10 of 292 reviews
                    I had originally bought a replacement battery for an old system and realized that there were some connectivity issues that would cause false alarms. Once I installed this new unit, I have not had any of those issues. It was a very easy installation and I like that the light flash is green so that you are aware when it is working. The red lights will flash if there are issues so you know if it needs maintenance.
                    by
                    12 Volt Pump Is Useless. Very Disappointed
                    I purchased two of the Combination pumps from the Hamilton store and installed one at home and the other at my cottage. After careful installation and speaking with Glentronics they sent me another pump to install. Still doesn't work. I am using a 102 inches of pipe with 1 90* and 2 - 45* abs elbow and the pump will not pump after the initial cycle. the head pressure is to much for the pump. So short of putting this pump above my floor, the backup pump is pretty much useless. $1000.00 when done
                    by
                    Response from WatchdogMay 1, 2023
                    Sorry to hear you are continuing to have problems getting the pump to work with your setup. It's possible with the bend and turns that the overall rise might be a bit to high for the backup pump on this system. In a case like this, we do have stronger backup pumps that might be a better solution to your situation. I believe we have already been in contact with you regarding this and if you have a chance please get back to us at 800-991-0466 option 3 so we can further assist you. We're here to help from 8-6 Monday - Friday central time.
                      1 found this review helpful
                      Purchased the unit in March of 2018 and less than 3 months later I get these two warnings: 1. Che...
                      Purchased the unit in March of 2018 and less than 3 months later I get these two warnings: 1. Check the circuit breaker and plugs or replace charger. 2. Terminals corroded or battery defective. Clean terminals or replace battery. Worst part is the alarm you cannot silence in case above. I had to use my car battery charger b/c the unit received in picture did not work. Once I got the battery fully charged it did not fix the issue. Called customer service and they sent out a new AC adapter but at this point I'm so frustrated I just returned the Backup Sump Pump and get my money back. Customer service was not great after hitting option 3. Did not appreciate the fact that they had no record of my product registration on file. I told them I still have the confirmation email received from the day I bought and registered the product.
                      by
                        13 found this review helpful
                        This product was really easy to install and works great! Even if I was not a plumber the directi...
                        This product was really easy to install and works great! Even if I was not a plumber the directions and pictures make everything so clear to understand. You may need a few extra parts depending on your sump size however, the different possible configurations as well as detailed parts list are all in the directions. The monitor is very informative in that if the backup sump is activated it lets you know visually and audibly (if you want) so that you know if your main pump did not operate. I would highly recommend this product because the monitor also informs you of the condition of the battery as long as you purchase the "watchdog" battery which I did and also highly recommend.
                        by
                        • Verified Purchase
                        • Recommended
                        5 found this review helpful
                        I installed an earlier model of the watchdog approx. 16 years ago and have used it several times ...
                        I installed an earlier model of the watchdog approx. 16 years ago and have used it several times over the years. That unit failed to operate during our recent 3 day power outage but it was probably due to my lack of maintenance to the battery in the past few years. There was only one unit left in town, that I could find, and I ordered it online for pickup in the morning. The new unit was easy to install, despite having to fill the new battery with acid, and i had the backup running in a few hours. Power came back on 10 hours later but the emergency pump saved me 10 hours of bailing by hand.
                        by
                        • Verified Purchase
                        • Recommended
                        5 found this review helpful
                        This is a decent backup unit. We live in an area with a lot of water, and our sump stays pretty b...
                        This is a decent backup unit. We live in an area with a lot of water, and our sump stays pretty busy. I installed this about two years ago, and it's done very well so far. Power outages, pump failures, and even in a flood when my sump pump couldn't keep up, this ran and kept the sump low and my basement dry. The unit is smaller, the emergency float switch takes some adjusting, and the beeping can get a little annoying, and I wish it had some more advanced features, but overall it has been a good product for us. If it ever needs replaced, I will likely purchase the same brand, but check out the larger unit, and possibly look into WiFi capability.
                        by
                          • Recommended
                          2 found this review helpful
                          It surprised me...
                          I bought the equivalent of this pump at the Home Depot in 2003. I live in an area that has a lot of groundwater...my 1/2 hp primary pump runs every 10 mins during peak flow, approx 40 gals per min @ 8' head (lift). I always thought if the main pump went out, this thing would be dead in 1/2 a day at best. In 2006, we had a horrendous ice storm here, some areas without power for over 10 days. This pump ran faithfully every 5-10 mins (using a 2 year old 925 cca boat deep cycle battery), and was still running when the power came back on after almost 4 days! It truly surprised me for a product in the entry level range. I attribute this partially to: 1. a careful installation with special routing to keep the discharge lift under 5' (I cheated and went directly through the foundation wall into a storm sewer, rather than up-and-over the foundation), and 2. A good battery. But be sensible folks- know what your primary main pump capacity is, the lift, and how much it is pumping (hint: check the charts at your primary pump manufacturer web site, then charts at the basement watchdog site). That will tell you if this pump can handle it. If your primary pump runs nonstop during storms, 1. its probably too small, and 2. you better plan on multiple backups, or something else with high capacity. And by the way, although the battery is not included, most Home Depots DO carry 2 models of the dry battery and also the acid to be added, the benefit here is a truly "new" battery, which can be serviced (not sealed), and accepts the voltage probe (although the unit will still function with the probe). The higher the amps of the battery, the longer it will pump, and the more you will pay. If the HD doesn't have it, you could also consider a serviceable deep cycle marine battery. After almost 10 years of service, 4 batteries, and multiple power failures without mishap, I have decided to get a new one...you guessed it...this one again. One welcome improvement is the fact that the alarm can now be switched off during an event, and the float switch is now redundant (2 floats). Advice? 1. Keep the discharge pipe completely separate (after all this IS an emergency system) from other plumbing and as LOW as possible. 2. test the system regularly and expect to change out the battery every 2-3 years (don't forget you can recharge the battery from your car in a pinch or even use the car's battery in a real emergency). 3. try to mount the pump with support UNDER the pump. I had a neighbor with this exact model and their basement DID flood...our investigation found that the installing plumber hung the pump by the discharge pipe which cracked the base housing, so the pump ran but did nothing. 4. Be sensible and make sure this pump has the capacity you need...you can even call their tech support- I have found them to be very helpful- the system will only be as good as the installation. I hope you have the same good luck I have had with this pump.
                          by
                          • Pro
                          • Recommended
                          156 found this review helpful
                          Stops running after 15 seconds with a lot of water still in the pit.
                          by
                          Response from WatchdogOct 7, 2026
                          Thank you for reviewing our product. The float on that unit can be adjusted to have as much or as little water in the pit as desired after the pump cycle. 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.
                          • Verified Purchase
                          This customer chose to rate the product and not provide text.
                          by
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          Showing 1-10 of 292 reviews

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                          Product Snapshot

                          Great for homeowners looking for battery backup, making power outages worry-free. Days of intermittent pumping power.
                          Ideal for homeowners needing reliable backup power for sump pumps, ensuring flood protection during outages.
                          Ideal for emergency power outages, this backup sump pump system with a 12-Volt DC pump ensures reliable basement flood protection.
                          Ideal for backup power during outages, this 75Ah maintenance-free battery ensures reliable sump pump operation for 32 hours.

                          Battery Capacity

                          75 Ah

                          Run Time

                          Days of intermittent pumping
                          Up to 80 hours (10% duty cycle)
                          2.5 hr
                          32 hr

                          Automatic Switch Over

                          Maintenance-Free

                          Alarm System