US Numeric Size
Waist
US Denim Size
Hip
Chest
Maintenance free – no need to add battery fluid or distilled water Up to 40-hour protection Standby Battery (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 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 various Basement Watchdog sump pump systems intermittently for days Older versions, purchased before 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 an older non-compatible system may cause false alarms. California Prop 65: WARNING: Battery posts and terminals contain lead, lead compounds or other chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. See https://www.p65warnings.ca.gov/
5 star | 100% | |
4 star | 0% | |
3 star | 0% | |
2 star | 0% | |
1 star | 0% |
The Basement Watchdog batteries are designed in conjunction with our sump pump systems making them the perfect power source for your pumping needs. This allows your backup pump to run continuously for hours or intermittently for days to keep your basement dry.
The standby construction of The Basement Watchdog Sump Pump Battery (Model BW-27AGM) allows it to last longer and stay viable for years. Its design and construction ensures the battery is kept at peak charge without having to be discharged and recharged to maintain its health.
Both our wet-cell and maintenance-free Basement Watchdog batteries are designed to power sump pumps, which means they last longer and perform better than standard automotive or deep-cycle batteries.
If you are looking for a maintenance-free option, The Basement Watchdog AGM battery is your solution. No battery fluid to add, no water every 6 months—just connect the system and you are ready to go. All current Basement Watchdog Battery Backup and Combination systems are designed to work with the maintenance-free AGM battery.
The Basement Watchdog has been protecting homes for over 30 years and continues to be a market leader. We build the most dependable, user-friendly pumps, batteries, and accessories in the industry using intelligent design, premium components, and quality manufacturing practices that include thoroughly testing every single unit.
Brand Name | THE BASEMENT WATCHDOG |
---|---|
Included Components | GLENTRONICS – BW-27AGM |
Model Number | BW-27AGM |
UPC | 717301122538 |
Manufacturer | THE BASEMENT WATCHDOG Store |
Best Sellers Rank | #16,965 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #6 in Water Pump Accessories |
ASIN | B077XL42DJ |
Number of Pieces | 1 |
Item Dimensions | 8 x 12 x 12 inches |
Item Weight | 22.6 Kilograms |
Color | Black |
Material Type | Battery Casing Material |
Raj Raj –
5.0 out of 5 stars
Works with older model, just make sure to attach your senser rod to positive terminal
My old distilled water battery went dead after serving 10 years, so far this battery is good replacement for older basement watchdog sump pump system.
16 people found this helpful
Amazon Customer –
5.0 out of 5 stars
Easy Installation
The Basement Watchdog customer support Brian Harrison was incredible because of the changes of the product. His guidance for support was knowledgeable ,patient, and thorough. He earned an A in customer service,
2 people found this helpful
Katherine H. Danneberg –
5.0 out of 5 stars
Perfect Replacement
This battery was a little different from the one I previously had but it worked out great!
Richard Kern –
5.0 out of 5 stars
Sump pump baytery
Performing as required
Corgi3294 –
5.0 out of 5 stars
Easy to set up
I have this set up for peace of mind. As a widow, this type of work is new for me. However, I was able to understand the instructions and get it into the sump pit and connected with no trouble. I definitely recommend the maintenance free battery rather than the type that needs the distilled water added.
10 people found this helpful
Robert K Washburn –
5.0 out of 5 stars
Reputation
Alaways helpful
One person found this helpful
Paul Agosta –
5.0 out of 5 stars
Great Job
mkljk
Leti –
5.0 out of 5 stars
Great value
It is sealed and there is no need to fill it up with acid and eventually add water.
3 people found this helpful
Tom Landis –
5.0 out of 5 stars
driver on time and in good shape
driver on time and in good shape
Christine Rademacher –
5.0 out of 5 stars
Flood prevention!
Just what we needed.
One person found this helpful
JMJ VA –
5.0 out of 5 stars
It’s working great!
Great replacement battery for the old standard back-up battery that we had (by the same company) for our sump pump. It is HEAVY, so be prepared to have someone help you get it into your basement. But installation was a breeze. The instructions are clear, so just follow them. Highly recommend.
Amazon Customer –
5.0 out of 5 stars
Old battery wouldn’t hold charge
Replaced and is working fine
One person found this helpful
Richard –
5.0 out of 5 stars
It works
It did the job they should send instructions how to use with older systems
Murphy –
5.0 out of 5 stars
Battery backup
Great product
Leonard Jarvis –
5.0 out of 5 stars
WATCHDOG QUALITY
Quality product that arrived promptly as described.
Lauren –
5.0 out of 5 stars
Life saver or basement at least
We had problems with our power going out and our basement flooding due to the sump pump pit over following. We swapped out our old standard pump for the watch dog system. The system requires a battery, and this one is made to work perfectly with the pumps. It was easy to install and works great it has already paid for itself three times over in recent storms. Good get one and save yourself the stress of worrying if your basement will flood or not.
One person found this helpful
James SasserJames Sasser –
5.0 out of 5 stars
Well packed / fully charged!
Using this as the backup power supply for a basement sump pump setup. Super secure packaging and ready for service-fully charged.
One person found this helpful
Sam Lurie –
5.0 out of 5 stars
Great customer service. Highly recommend
Had an issue with the product. Called the company and was helped by a wonderful gentleman. Everything was handled quickly and easily. Highly recommend
One person found this helpful
Harold C. Bacon –
5.0 out of 5 stars
Watchdog AGM battery
Heavy duty battery, I have used their sysems for years. Saved me many times from a flooded basement.The only negative is the length of the terminal bolts, for my use too long. I could not seat the SS bolts so I cut them shorter.
One person found this helpful
Amazon Customer –
5.0 out of 5 stars
Great battery for the money
Great battery for the money and I like the no maintenance on itNo checking water levels and easy to hook up to my backup system
psflameman –
5.0 out of 5 stars
Worked as it should
Good Solid Battery
One person found this helpful
jennifer gumabao Aragon –
5.0 out of 5 stars
Simple and convenient, maintenance free !
This is what I need a battery back up that is easy to install and maintenance free . So far it’s working well .
Chris Gieski –
5.0 out of 5 stars
Perfect battery setup for my pump.
This worked perfectly for my backup pump system.
One person found this helpful
Burky –
5.0 out of 5 stars
Product very good but Amazon was terrible
Product works fine but I tried to return an unopened delivery of this but Amazon refuses returns on this product but does not state this online.
7 people found this helpful
Diane –
5.0 out of 5 stars
Came full
No acid needed. Ready to go.
One person found this helpful
Big Al –
5.0 out of 5 stars
Excellent
Great and equipped
A. H. Ullman –
5.0 out of 5 stars
Convenience! No more monthly water checks/additions.
The virtue of this battery is that it replaces one that needed periodic (I did it monthly) maintenance to check the water levels in each cell and use distilled water to replace any that had evaporated. This is a sealed battery. The only questions are, “How will it perform in a power outage?” and “How long will it last?” We’ll have to wait and see on those.12/3/2022 It’s two years since I bought and installed this battery — it’s still working fine!
19 people found this helpful
robert smith –
5.0 out of 5 stars
just started using
didnt want to have to add acid. Dont have to add water
One person found this helpful
RJ –
5.0 out of 5 stars
Easy and Great Price
Doing a little price matching and came across this deal. Much cheaper than the big box stores, with quick shipping right to my door.
4 people found this helpful
Photo424 –
5.0 out of 5 stars
Worked well out of box !
As advertised . Replacing older batteries from same supplier. No issues with installation
One person found this helpful
Amazon Customer –
5.0 out of 5 stars
Wasn’t sure if this would work with my sump model…
I have an older model Basement Watchdog Special (not the PLUS) version with a very early serial number. I couldn’t find any info if this battery would work with my specific model so I took a shot. It’s working just fine – and NO ACID OR WATER!!! Only took a few days to get to me with free shipping. So far – 5 stars.
14 people found this helpful
Thersa & Todd Angleton –
5.0 out of 5 stars
Good product
Exactly as described and it’s working great! So much easier buying it online and having it delivered to my door.
One person found this helpful
Valerie –
5.0 out of 5 stars
Easy to install
Replaced and upgraded my old watchdog battery with this no maintenance one. Installation was minutes.
4 people found this helpful
Shae Gruba –
5.0 out of 5 stars
Maintenance free battery for watch dog sump pump
I used this for my sump pump instead of a manual filled battery. I received it, and it came much faster than expected delivery. It had a charge and was in working order. It fit perfectly with the watchdog sump pump system
2 people found this helpful
Andy Hoke –
5.0 out of 5 stars
Customer support in fantastic.
Works perfect. Great customer support. Easy to install.
One person found this helpful