Basement Watchdog Backup Sump Pump Battery

This would depend on your battery back sump pump system Sandra, as not all systems are designed to work with multiple batteries. I would suggest calling the manufacturer of your system to verify compatibility. If it is set up for multiple batteries, they would be connected in parallel.

Kris,

The acid can be purchased at any local big box store. As for the unit being refilled, you will need to add distilled water as needed. You will not need to add acid again after the units 1st fill.

Please let us know if we can help with anything else.

The Basement Watchdog Battery model 30HDC140S is not rated in amp hours. It is rated in Reserve Capacity at 182 min. @ 25 Amps. If you would compare this to a marine battery it would be around 700 cold cranking amps (CCA).

Please call Basement Watchdog tech support at 800-991-0466 and they will assist you in getting a replacement cap.

We offer the this battery two ways. For convenience, we offer the KIT which also includes the acid. If you are looking to save a few bucks, you can order the BATTERY ONLY and purchase the acid locally. The battery acid usually be found at your local auto or big box store for about $20.

The Basement Watchdog model 30HDC140S Is designed for use with the Basement Watchdog line of battery backup sump pump systems, including models BWE, BWSP & BWD12120C. This battery can also be used for just about any other battery backup sump system requiring a 12 volt deep cycle battery.

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.

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.

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.

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.

Update 11/16/15: Basement Watchdog has changed this requirement around 2013 and their backup systems will now accept maintenance free batteries. Please refer to their updated installation manual for instructions on the proper method for this battery installation.