Add a Battery Backup to an Existing Sump Pump - Helpful Tips For Newbies!

Disaster prevention is one of the main concerns for any conscious homeowner, and one of the most important devices that need to be installed in a house is the sump pump. Its role is to pump out the water that accumulates in the water collection basin to prevent flooding, sparing you of the catastrophic results of this outcome where even thousands of dollars in damage can be caused. Thus, spending some money to perfect this system is smart as the alternative is considerably costlier.


Woefully, the sump pump can fall victim to failure, the most common occurrence with it being a complete stop of its operation when a power outage emerges. There are systems out there that feature power backing in the off chance of a power outage, but since you already have a sump pump system installed, you should look into installing a battery as backup on your own if you have the time to do it and you are interested in this DIY project to spare some money.

Why you should make the addition

 Decreases risks

  • Some areas are bound to witness heavy storms more than others, and if you live in an area like this, you are likely to experience power outages more than a couple of times per year. As the power to the sump pump is cut, the inevitable occurs as heavy rain falls, flooding water taking over and damaging your goods while tampering with the resistance of your house as well. Battery backup prevents this occurrence as it provides power even during the outage, the water that is accumulated in the basic being drained from it as usually.
  • There’s the risk that the sump pump will decrease in quality as time passes as well, recovering a lot harder from short outages. Thus, the backup power provided by the battery helps keep up its performance even if the system isn’t performing to its fullest anymore.

Danger warning

Modern backup systems are quite sophisticated, benefiting homeowners in more ways than one. Some monitor battery status and perform tests on themselves in order to make sure that everything is alright. In the off chance of a potential problem with the battery, it alerts the owner to take measures and fix the situation so that it won’t fail when needed.

Easy maintenance

You might be tempted to think that this new addition will require you to perform complicated maintenance work on it, which undoubtedly lowers its appeal as no one likes having another chore on their hands. Luckily, this isn’t the case as, in addition to boasting a simple installation that we will cover immediately, the backup system is easy to maintain as a whole. As long as you make sure that the battery you pick suits the needs of your system, providing the needed power when the system will rely on it, there’s no harm that can ensue. When it comes to specific maintenance tasks, all that you will be required to do is check the water levels and terminals of the battery on a regular basis to make sure everything is in check.


Installation process explained


  • First, you must mount the power station which makes the connection and provides the power to the pump.
  • Some models need to be wall mounted, case in which we recommend you follow the instructions in the accompanying manual to ensure procedure’s success.
  • Make sure that there are a maximum of 4 feet distance between the station and the pump for a proper connection to be guaranteed.


  • Make sure that the station is not powered by checking to see if it is turned off.
  • Connect the positive or red cable of the battery to the positive terminal of the station.
  • Connect the negative or black cable of the battery to the negative terminal of the station.
  • Plug the station into an outlet that delivers the proper voltage, and turn the switch to the On position.


To make sure you were successful, you obviously need to test it. First off, you should cycle the pump on its own to check that it works under normal conditions. When you are sure that everything is alright, you can proceed to remove the power cord of the power station from the outlet in order to simulate a power failure. If the station continues to power the pump even though it is unplugged, this indicated that the procedure was a success and that it will service your pump when the power goes out using the “juice” provided by the battery. Now that the test is over, plug the station back into the outlet, and breathe easy knowing that in the event of storms you won’t be in danger of having a flooded house anymore as the battery backup will keep the pump system up and running until the situation goes back to normal and AC power is restored.


Eventually, you are bound to have a power outage, this occurrence taking place most commonly during violent storms, when you need your sump pump to work the most to prevent an eventual flooding of your home. Instead of taking chances, it’s best to install a battery backup to the sump pump you own, ensuring a constant operation of the system.