5 Best Battery Backups for Existing Sump Pumps (2022) | Expert’s Choice

As you’ve just read, many battery backups are intended for use with sump pumps. But there are other situations where you might want to utilize battery backups for existing sump pumps in your home. For example, battery backups can be installed in an existing sump pump to ensure that it continues to run even if the power goes out.

Some sump pumps are designed to run on battery power, so if the power goes out and the battery backup kicks in, you’ll still be protected. Another reason homeowners might want to install a battery backup for an existing sump pump is if they want to extend the amount of time it takes for water to fill the sump pit to a level that triggers the pump.

If you’ve ever been in a home that was flooding and the sump pump didn’t work right away, you know how much damage can be caused in those few minutes. Installing a battery backup for an existing sump pump can give you the extra time you need to save your home.

Which battery backup to choose for your home:

Battery Backup Sump Pumps:

A battery backup for an existing sump pump is not a sump pump. It’s a battery backup that’s designed to work with an existing sump pump. In the case of battery backups, they’re typically installed in the sump pit and connected to the existing pump.

Battery backups are typically made up of two parts. The first is the battery and the second is the backup itself. The backup is the device that will kick in if the power goes out. It’s the device that will keep the pump running in the event of a power outage.

There are a few different types of battery backups that you can use with an existing sump pump. The most common is a battery backup that uses a battery to provide power to the sump pump. These units are typically installed in the sump pit and connected to the discharge pipe of the pump.

Power inverter:

A battery backup that uses a power inverter is another good option for battery backups for existing sump pumps. This is a hybrid between battery backups for existing sump pumps that use a battery and battery backups for existing sump pumps that use a power inverter.

A battery backup that uses a power inverter works by using a battery to power the pump when the power goes out. Then, the power inverter kicks in to keep the battery charged.

This is a great option for people who have battery backups in the sump pit and want to extend the amount of time the battery backup can run without having to replace the batteries.

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Best Battery Backup for Existing Sump Pumps:

Wayne ESP25 Upgraded Battery Backup System:

The Wayne ESP25 is an excellent battery backup for existing sump pumps. This is an upgraded version of the ESP12, so it has all of the same features and functions. The biggest differences between the ESP12 and the ESP25 are the battery and the backup. The ESP25 has a battery backup that uses a power inverter, which is a nice upgrade.

The other difference between the ESP12 and the ESP25 is that the ESP25 has a display that allows you to monitor the status of the battery backup. This is a nice feature to have if you’re not used to having a battery backup for an existing sump pump.

This battery backup is a good option for people who want to extend the amount of time that it takes for the water to fill the sump pit. This is a great option for people who want to extend the amount of time it takes for the water to fill their sump pit.

The battery backup will last up to 24 hours, which is a good amount of time in the event of a power outage. The ESP25 is a very affordable battery backup for existing sump pumps. The Wayne ESP25 sells for around $125 and comes with the battery, battery backup, and backup float switch.

Pros
  • Very affordable
  • Long run time
  • Display to monitor the status of the battery backup
  • Upgraded version of the ESP12.
Cons
  • It’s not as powerful as the ESP12 or the ESP25

Zoeller Aquanot Spin 508:

The Zoeller Aquanot Spin 508 is a great battery backup for an existing sump pump. It uses a battery backup that is installed in the sump pit and connected to the discharge pipe of the pump. This battery backup is a good option for people who want to extend the amount of time it takes for the water to fill the sump pit.

The battery backup will last up to 24 hours, which is a good amount of time in the event of a power outage. The Aquanot Spin 508 has a float switch to monitor the water level. This battery backup will work with any sump pump that has a float switch. The Aquanot Spin 508 has a display to monitor the status of the battery backup.

This is a nice feature to have if you’re not familiar with battery backups. It’s a nice feature to have if you’re not used to having a battery backup for an existing sump pump. This is a very affordable battery backup for existing sump pumps.

Pros
  • Faster discharge for massive inundation of up to 2,100 gallons per hour at a height of 10′
  • 11,900 gallons/charge
  • The check valve is also included.
Cons
  • A power guzzler

PumpSpy PS2000 WiFi Battery Backup Sump Pump:

The PumpSpy PS2000 WiFi Battery Backup Sump Pump is a dual-purpose sump pump designed to be used in your primary system, or as a backup to a traditional sump pump. Designed to work with your existing sump pump, the PumpSpy is installed in the sump pit between the float switch and the discharge pipe.

When your primary sump pump fails, the PumpSpy will activate a mechanical switch, turning on the primary pump and shutting off the backup pump. When the primary pump is turned on, the Backup Pump will be placed into a standby mode, waiting to be activated. The PS2000 operates on an AC power supply or an internal rechargeable battery.

The AC power supply is used when the pump is to be used as a backup. The internal rechargeable battery is used when the pump is to be used as a primary sump pump. When the internal battery is in full charge, the pump will use AC power until the battery needs recharging.

Once installed, the pump can be controlled from the web via your WiFi connection and a web browser. You can view pump status and switch the pump on and off. If you are not at home, you can view the pump status through email alerts and mobile phone SMS alerts.

Pros
  • A fast discharge of up to 2,400 gallons per hour
  • Smartphone monitoring and alerts
Cons
  • More expensive than others with similar features at $469
  • No check valve included

SEC America PumpSentry 822 PS​

This battery backup system is designed to work with SEC America pumps that have a built-in pump sense module. This system takes the place of the pump sense module. It has eight independent alarms, which can be programmed for water level and for pump failures. The system also supports up to three pump stations. The battery backup is a backup to the internal power supply of the base pump.

The PumpSentry 822 PS is the finest sump pump power inverter on the market. It’s a long-lasting, reliable 1200W power inverter with a charger that works with up to 1/2 HP sump pumps. A popular option for emergency backup power among professionals and homeowners alike.

It has battery status lights and a low-battery alarm you can hear from afar. It’s not the most affordable option, but it offers complete peace of mind even during thunderstorms. Only a top-notch product can deliver something like that.

Pros
  • Comes with the fully automatic charger that effectively extends the lifespan of the battery
  • Maintenance-free three-year warranty for nonstop use
  • Lowest price in comparison to other models
Cons
  • Little Expensive

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PumpSpy Primary Sump Pump Backup Power System

Includes PumpSpy® Basic Sump Pump Backup Alarm with Backup Battery, Instructions, AC Charger, and UL Listed Battery Backup PumpSpy® is a complete primary sump pump backup power system (sump pump, battery, backup & alarm) that is designed to work with your existing primary sump pump.

The PumpSpy® primary sump pump backup system can also be used independently from a primary sump pump. It does not require an existing primary sump pump, just your existing sump pit. PumpSpy® is an alarm and backup battery system that requires no external power.

The PumpSpy® sump pump backup system is designed for use with any sump pump, either submersible or pedestal type. The PumpSpy® primary sump pump backup system is easy to install. The unit is small, lightweight, and portable.

It is designed to be used in a horizontal position, in a vertical position, or mounted to a wall. PumpSpy® is an alarm and backup battery system that requires no external power.

The PumpSpy® sump pump backup system is designed for use with any sump pump, either submersible or pedestal type. The PumpSpy® primary sump pump backup system is easy to install. The unit is small, lightweight, and portable.

Pros
  • It’s also a lot less expensive than the PumpSentry.
  • The power output of the 822PS is lower than that of the 1200W, but its efficiency is higher.
  • Pure sine wave power
Cons
  • The charger is rated at 10A.

Buyer’s Guide for Battery Backups for Existing Sump Pumps:

1. Build Quality:

The battery backup sump pump and inverter’s build quality must be excellent. Before we look at their characteristics and performance, we must ensure that it has a strong structure with no obvious design flaws. The pumps must be resistant to corrosion and accumulation while also being able to resist impact and erosion. They should be able to withstand the dampness in the sump pit without failing to function.

The use of materials that are suited to the job is essential. Aside from keeping what’s inside safe, the motor housing should also promote heat transfer to keep the motor cool at all times. The float switch on the pump must be puncture- and dirt-resistant as well. Furthermore, the battery box must be durable enough to protect the contents from damage.

2. Capacity:

This refers to the volume of water that the inverter can discharge at any moment in time. If you have a big sump pit, then it would be worth looking for one with higher capacity so you don’t have to replace the battery too often. Also, if your house’s power grid is prone to outages, then you should invest in a pump with higher capacity.

3. Wheeled Batteries:

These add portability and ease of installation to the battery pumps. They should be able to go through stairs, drains, and sharp turns while carrying a fully charged battery without giving way or toppling over so they are very safe to use. You should be able to wheel it everywhere you need without any trouble.

4. Float Switches:

Float switches have a long history in the battery backup sump pump industry and they remain as relevant as ever. The first generation of these switches were simple cylinders that sank when submerged but floated again once the water level was lowered. These days, they have been upgraded to tubes with a disc high enough to avoid the water but low enough to sink when submerged. They are often made of stainless steel for extra durability.

5. Battery Box:

The battery box should be able to properly contain a flooded lead-acid battery without any leaks or damage considering that it will be submerged. It should also be resistant to corrosion and the battery terminals should be well-insulated to prevent shorting or fires.

6. Battery Capacity:

Lead-acid batteries are known for their low cost per amp-hour but they also have a relatively short lifespan compared to other types of batteries. This is why you will want to ensure that the battery capacity is high enough for your needs.

7. Durability:

The entire point of a backup sump pump is to work when the power goes out and this means that it has to be durable enough to run without problems for an extended period. You should be able to leave it running for hours or days on end without it failing.

8. Inverter:

The inverter takes the power from your battery and converts it into AC power that can be used by appliances or tools that require this kind of voltage to operate without issue. You must have a device with a high enough capacity to support all of your appliances at once. Without this, you will quickly find yourself in the dark.

9. Battery Drain Rate:

The sump pump’s batteries must be able to drain at an appropriate rate for its connected submersible or jet pump. If the backup device cannot support the discharge rate of the main pump, then it may become exhausted before the main pump can recover and resume operation.

Conclusion:

So what’s the best battery backup for an existing sump pump in 2022? This is a difficult question to answer because many factors need to be considered.

One thing we can tell you is that it needs to provide enough power and run time, not shut off when there are problems with your home’s electrical system, and last long enough so you don’t have to replace batteries every few days.

If any of these criteria seem important – or if you just want more information about this topic in general – please let us know! We love hearing from readers who care about their homes and staying safe during storms. Our team would be happy to discuss all the options available and help find something perfect for your situation.”

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