Back-Up Standby Battery •Designed to be drained and recharged (ships dry) •Lasts longer and performs better than automotive batteries
Unique Construction •Runs sump pumps longer (more hours per charge) •Extends battery life (normally 5-7 years)
Extended Run Time •Runs Special (BWSP) and Big Dog (BWD12120C) for 7.5 hours •Runs Emergency (BWE) Pump for 12 hours
Special Cap •Holds the battery fluid sensor at the correct height •Helps reduce risk of failure (80% of failures due to low water)
WILL NOT WORK WITHOUT BATTERY ACID (SOLD SEPARATELY)
Model
Model Number:
30HDC140S
UPC:
717301301407
Manufacturer:
Basement Watchdog
Overview
Weight:
45 Lbs.
Dimensions:
L x W x H
Consumer Warranty:
1 Year
Download Documents
No documents available at this time
4 Questions
Q: I would like to purchase your battery and know that it needs acid. How can I purchase the acid for this battery? by Janet Terrana from New York on August 28, 2011
A: You should be able to purchase it locally at any auto parts or big box store for around $20. You do want to look for 6 quarts of 1.265 specific gravity battery acid. by Jim, Product Expert
Q: How much battery acid does the Model 30 Watchdog Battery take? Does it use "electrolyte" battery acid that can be found at industrial supply stores? Thanks. by Erick from Michigan on June 07, 2011
A: The Basement Watchdog model 30HDC140S battery will use 6 quarts of 1.265 specific gravity battery acid. You can normally find he acid at any big box store, auto parts store or anywhere that sells batteries. Please note that the battery will accept all 6 quarts. If you use all the acid, distributed evenly across the cells and the cells are still not full, let the battery sit for about 10-20 minutes and then fill with distilled water. by Jim, Product Expert
Q: Light on the panel is on indicate either Terminal is corroded or Defective Battery. please tell me where I can find the terminal and how to clean it, thanks. My battery model is 30HDC140S by Ken from Illinois on February 24, 2011
A: The terminals are the metal posts located on the top of the , where the wire connect to it. You'll have to unplug the unit and disconnect the battery
You can use baking soda, water and a tooth brush to clean the terminal. There's also a battery terminal brush tool you can buy at most auto parts stores. Steel Wool works too. by Jim, Product Expert
Q: If I buy a Basement Watchdog pump do I need a Basement Watchdog battery? by Karen from Illinois on January 03, 2011
A: You can use any deep cycle marine battery, as long as it is not maintenance-free. However, there are several advantages to using a Basement Watchdog battery. The Watchdog battery accommodates the system’s fluid sensor which will sound an alarm when the battery needs water…a very important feature, since a dry battery will not perform. In addition, Basement Watchdog batteries run longer per charge, and last years longer. A typical marine battery will last 2-4 years, while the Watchdog battery will last approximately 5-7 years. Basement Watchdog batteries are shipped dry (without acid) so they stay fresh on the shelf indefinitely, while wet batteries have a short shelf life.
by Jim, Product Expert
Overall Rating
4.2
(Based on 5 Reviews)
Sort By
September 04, 2010
Paul Guardino Howard Beach, NY
A life saver
When the floods came this summer, this pump saved me from thousands of dollars of clean up bills!!!
It is truly a life saver.
June 06, 2008
Jon Hoch, Founder Bolingbrook, IL
Designed for Sump Pumps
A battery backup sump pump is only as good as its battery.
If the battery fails during a power outage, the system is useless. In fact, nearly 80 percent of failures are due to dead batteries.
The entire Basement Watchdog system was designed around its unique battery.
Maintenance-free batteries sound appealing, but they lose power with age. If it sits in a warehouse or store shelf too long, the battery will be weak or dead when you buy it.
The Basement Watchdog battery, however, is shipped dry. Yes, you have to add the battery acid (sold separately) and distilled water, but your battery is fresh from the first use.
Plus, the Basement Watchdog battery features a unique cap to measure the water level in the battery. In all other batteries, the water slowly evaporates, rendering it useless when you need it.
The Basement Watchdog, however, signals an alarm, alerting you to add some water. Basically, you'll know if the battery needs maintenance before your basement floods -- not after.
A battery backup sump pump is only as good as its battery.
If the battery fails during a power outage, the system is useless. In fact, nearly 80 percent of failures are due to dead batteries.
The entire Basement Watchdog system was designed around its unique battery.
Maintenance-free batteries sound appealing, but they lose power with age. If it sits in a warehouse or store shelf too long, the battery will be weak or dead when you buy it.
The Basement Watchdog battery, however, is shipped dry. Yes, you have to add the battery acid... more
October 09, 2011
Abdullah Planefield, NJ
Basement Watchdog 7.5 Battery
Item received on time as promised. Wish that Sump Pumps Direct had actually packaged before shipping rather than simply sending in the retail box. It got a little banged up in transit
Also, wish that Basement Watchdog would offer a maintenance free battery. Who wants to deal with battery acid as well as disposing the unused remaining. Yuck
Overall a good experience with Sump Pumps Direct.
September 25, 2011
Matthew Lutherville, MD
Watch the Installation Video
I purchased the Basement Watchdog BW4000 (primary and backup combo) and installed it myself. The installation video is very helpful (aside from the really annoying music), but chances are your installation will not go as smoothly. I have a radon vent fit into my sump and that complicated installation (not accounted for in the installation video). If you have basic plumbing skills you'll be ok, but even if you don't have a radon vent in your sump, don't kid yourself - installation will take longer that what the video says.
September 14, 2011
Mark Chalfont, PA
Highly Recommend
I just installed the Basement Watchdog sump pump unit prior to hurricane Irene and thankfully I only had a small amount of water in my sump pump well.
The following week my area in PA got another 7" of rain from the tropical storm Lee and again the pump only turned on a few times to empty the sump pump well.
I am not able to provide any long term use report, but I am very happy with this unit. It is well made and it was easy to install and I am glad that I got the battery backup unit and the optional battery. It certainly gives me peace of mind that I will be able to run the 12 volt pump in the event of a power failure.
This system is more practical than the 120 volt pump it replaced as it was a big hassle to run the pump off of a generator after a power failure.
As it turned out, I was out of town visiting family when my area got about 4" of rain from tropical storm Lee and from what I can tell the unit did not run, but we got an additional 3" of rain while I was home and the sump pump well did fill up with water a few times.
I can highly recommend this unit and the technical support that I used before my purchase was first class and very helpful, they even returned my call within an hour.
I just installed the Basement Watchdog sump pump unit prior to hurricane Irene and thankfully I only had a small amount of water in my sump pump well.
The following week my area in PA got another 7" of rain from the tropical storm Lee and again the pump only turned on a few times to empty the sump pump well.
I am not able to provide any long term use report, but I am very happy with this unit. It is well made and it was easy to install and I am glad that I got the battery backup unit and the optional battery. It certainly gives me peace of mind that I will ... more
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