How to Install Battery Backup to Existing Sump Pump: 5 Easiest Ways!

Did you have any idea that battery backup installation on your current pump is a safety measure? It's one of the safest ways to ensure that your primary sump pump has continuous power when a power failure occurs. Amongst the most common questions about sump pumps is: "Can I fit a backup battery inside of a built sump pump?" 

People are searching for a cheaper solution to expensive replacement sump pump kits that need a whole secondary pump to be installed and setup.  In this article, I will explain How to Install Battery Backup to Existing Sump Pump in 5 easy steps. These kits typically have six different parts and require materials, including PVC pipes, control valves and cement, to complete the assembly. Flooding can get out of control fast, and it is worth every attempt to protect your home. 

How to Install Battery Backup to Existing Sump Pump: 5 Easiest Ways

 Fortunately, you can connect a backup battery to an existing sump pump and installing it is very simple. Here are five steps on how a current pump with the main pump to install a battery back-up. (NOTE: While it is safe and much easier to use, please ensure that you read all the guidelines in the manual before you start with it to prevent injuries. For essential safety data, please download the complete instruction manual.)

1. Find the Right Place

The battery backup pump is generally installed over the main pump. Make sure you have quite enough space in the basement to accommodate the battery backup sump pump before activating it.

Be sure that there’s enough space on the wall which has to be far away from the watercourse. Make sure the current backup pump has space in the pump basin. The cost of storing battery energy in the backup pump must also be considered. Check regularly for enough fluid to help keep the battery running.

Necessary tools:

  • Cable
  • Connector- AC/DC
  • Case for  battery
  • PVC pipes
  • Control valves and cement

2. Set the Unit to the Wall Properly

The main advantage of  Pump Sentry is that it does not take space in the crock or pit, but is easily attached to the surface.

Pump Sentry may be installed from a grounded AC outlet at any suitable distance given that the AC cord is reached from the pump. It is also necessary to position the battery below 4 feet from the pump centre for the correct connection to the sold battery cables. 

Other than supplied cables will negatively affect efficiency when using battery cables. To guarantee safe use, it is recommended that the battery or battery assembly should be accurately placed on the wall in the battery box consisting of solid plastic or Nylon.

3. Make Proper Connections

Take these steps after securing the centre of the pump to the wall:

  • Ensure that the on/off button is in the OFF position
  • Join the red (positive +) pump centre terminal with the battery cable
  • The black battery cable is connected to the Pump Sentry black (negative) terminal
  • Link the pump to the AC outlet of Pump Sentry
  • Connect the centre of the pump to an AC outlet of 120 volts
  • Switch on and off to ON

4. Attach Float Switch

Place the float turn over the main pump for the new backup pump. Choose a point from which the water level can indeed be properly activated by the backup battery. Then connect the discharge pipeline with the float switch. Connect the backup charger to that same battery.

With this connection, you don't even need to use a converter or cable.

5. Test Your Installation

This is the right time to check the installation just after the device has been correctly set up. To ensure activity under normal conditions, begin by cycling your pump. Once the pump is secure, take the Pump Sentry control cable out of the AC wall outlet to modulate a power shortage.

Please note that the LED "Output  Power" stays lit showing that the pump power is exiting even when the power supply cable is inactive or without power. Reprocess the pump in "battery backup" mode to ensure its operation.

Right after completion of the test, connect the Pump Sentry AC charging cable to just the wall outlet. At least 1 LED battery monitor must be lit just within 2 seconds. The Pump Sentry has now accepted the arrival of natural AC power and is back to its normal charging state. Again, cycle the pump properly.

For that disconnect the cable to the main sump pump and try the currently installed backup pump. Please fill the sump pit with water and make sure the backup pump cycles properly.

The Benefit of Using the Pump Sentry 

This is a pretty simple installation process that takes no space into the sump pit or requires complicated extra steps such as cuts and glued pipes over other pump battery backups mostly in the market. This wall assembled machine improves the operation of such a pump, by avoiding hardship and the cost of the installation of an auxiliary pump with improved efficiency. The battery backup can be easily added to a current battery pump which can you can see.

The Installing Process of the Alternative Backup Sump Pump

The Installing Process of the Alternative Backup Sump Pump

Here comes everything that you need to set up a backup sump pump in the proper way.

  • PVC pipe
  • Check valve
  • Float switch
  • Battery

1. The Alternative Procedure

  • Install or connect the discharge line properly
  • The discharged pipelines would be linked to your main pump

A PVC pipe piece with a backup pipeline hole can indeed work. Simply add a 45-degree angle in betweenthe battery backup and backup pipeline. Then confirm thatyou install a Y-connector to the primary tube. Next, the valve under the Y connector and an angle of 45 degrees must be placed. The control valve is important to ensure that no backups in the pump are provided by floodwater.

2. Alternative Steps in the Battery Pump Installation

  • Place the backup pump next to the main pump. You must, however, ensure that the two systems will not touch one another
  • Connect the discharge line carefully and  effectively
  • Must try to use a suitable PVC pipe hose properly
  • Insert a T-joint with a threaded hole in the discharge section
  • In the primary pump position the T-joint up or over the area of the discharge pipe
  • To attach the PVC pipe gap to the hole in the T-joint,  by takingthe male adapter
  • To attach the screw and directly, plug the T-joint into the pump backup system. You may use a screwdriver

3. Before Starting Keep The Mentioned Points in Your Mind

Place the wall battery as close to the power outlet as possible. An extended cord is not the perfect way to supply the battery with a current.

  • Put the battery cables on the outlet just after you install the battery
  • Always make sure that you switch the light OFF.  or positive The red cable is good or positive for your safety and the black cable negative in terms of your safety
  • The connection enables AC/DC capability to be combined and thus the battery gets charged
  • Link the pump cable and the other cable to the AC power supply

Test the battery next by disconnecting the AC source link. See how the power pump joins on its own even without electricity


If your primary pump fails in the event of an energy shortage, a battery-quality backup pump will provide much-needed pumping capacity. You don't even need electrical power from your secondary battery to support your backup pump running, and it will also help keep your main pump running in emergencies. In a few easy steps, you may install a battery backup pump whenever you need it. In case of flooding during pump breakdown, it offers peace of mind for you. Hope, now you got a very clear idea on How to Install Battery Backup to Existing Sump Pump in the easiest way.

I am Vera Watson. Drawing The House is a dream that was conceived when I saw a niche in consumer guide on almost everything in our homes. My main aim is to help you save money by testing the products you need and recommending you the best of them all. I believe in the family as an institution and the first way to make a family happy is providing the best for them.

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