Best Battery Backup Sump Pump: Ultimate Reviews

If you use a sump pump at home, you may want to invest in the best battery backup sump pump system. Doing so will put your mind at ease!

Using a sump pump is a good way to avoid problems in the basement. When the water has gotten too high, the sump pump will turn on and it’ll remove the excess water. This can be very beneficial if you cannot solve the problem in another way. Nevertheless, you should know that sump pumps are not perfect. If the battery goes out during a storm, there is a good chance that the sump pump is going to stop working. This is why you need the best sump pump battery backup system.

With this type of system, you can rest assured knowing that your pump will keep working when the power is out. Within this guide, you’re going to discover battery backup sump pump reviews so you can find the best one for your money.

1. Wayne ESP25 Upgraded 12-Volt Battery Backup System

If you’re looking for the best backup sump pump, you’ll want to spend a few minutes checking out the Wayne ESP25. This is indeed one of the best systems. It isn’t a water-powered sump pump but it is impressive in its own right. In fact, this pump will provide you with a wealth of benefits and you might not be able to find them anywhere else. It offers plenty of battery life and it is powerful enough to handle a lot of water in a short period of time. Many people want extra reassurance and these individuals should not hesitate to invest in the Wayne ESP25 Backup System.

Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black
  • Upgraded ESP25 with epoxy steel body and cast-iron base. No more plastic
  • 2700 GPH at 0' provides additional protection to your primary Wayne sump pump

Last update on 2021-10-16 at 20:50  / Images from Amazon Product Advertising API

Made In The United States

Before going any further, you should know that this unit is made in the United States. This guarantees that it is going to last a long time. On top of that, you can guarantee that it is going to deliver a good performance. It might be expensive but it’ll be worth it. The American craftsmanship cannot be ignored. Don’t bother with the foreign alternatives. If you like American made products, you’ll want to consider buying this sump pump.

Built To Last

You should know that the Wayne ESP25 Backup System is built to last. It features an epoxy steel body with a cast-iron base. This means that it is going to be very durable. Even if it gets knocked around a little bit, you can guarantee that it is going to keep on working. This unit will not malfunction or break easily. It is very durable so you can rest assured knowing it’ll be worth the higher price.

Alarm System

This unit features an audible alarm. This can be beneficial since you’ll want to know when the backup system is being utilized. When the backup system is activated, the alarm will sound. This will let you know so you can act accordingly.


One of the best things about this model is the warranty. This backup pump is protected by a 2-year limited warranty. That is right on target. It would be nice if the warranty was a bit longer but most people will be satisfied with it. It is better than what you’re going to get with some of the alternatives.


Finally, you should know how much water this unit can discharge. That will depend on the height of the water. At 0 feet, it will be able to pump out 2,900 gallons in an hour. At 5 feet, it will discharge 2,340 gallons of water an hour. This should be good enough for most applications.


  • Excellent 2-year warranty
  • Discharges a maximum of 2,900 gallons an hour
  • Built in the United States
  • Battery backup will run for 10,000 gallons


  • Slightly expensive
  • Charger is heavy and might not stay plugged into the outlet

2. Pump Sentry 1622 Emergency Power For Sump Pumps

Some people want maximum reassurance and they’re willing to pay for it. If you fit into this category, you’ll want to check out the Pump Sentry 1622. It is one of the most expensive units out there but it’ll prove to be worth every penny. It will provide you with plenty of backup power in the event that something goes wrong. It is protected by a good warranty as well. The mounting process will be very easy so you can get it up and running in a short period of time. Plus, the unit is designed to deliver maximum durability.

Pump Sentry 1622- Emergency Power for Sump Pumps by Sec America
  • 1600 Watt Battery Backup, UL & CSA Approved
  • Battery Cables Included

Last update on 2021-10-16 at 20:50  / Images from Amazon Product Advertising API

Rugged Housing

When it comes down to it, you need a unit that can take a few bumps. The Pump Sentry 1622 will be able to do just that. This model features a rugged aluminum house. It is very tough. You can guarantee that it will protect the internal components without any trouble. At the same time, this backup is compact in size. This makes the installation process easier. You can install it almost anywhere.


Since the price is so high, you’ll need a good warranty. Well, the warranty provided by SEC America isn’t too bad. In total, you’re going to be protected for a period of two years. It would be nice if the warranty was longer. At this price, you would expect it to be longer. Nevertheless, two years of coverage will be enough to satisfy most consumers.

Easy Installation

Another thing to note is that this unit can be installed easily. The design ensures that it can be mounted on most surfaces. You can mount it on the wall or surface. You will need to use a few screws to get it mounted. You should also know that the unit comes with the necessary battery cables. You won’t have to buy anything else.

Won’t Consume Space

Finally, you should realize that this unit is not going to consumer space in the sump pit. You won’t have to worry about diminishing the pit’s water capacity by installing the battery backup down there. Instead, you can install this unit somewhere else. This will ensure that your sump pit is able to hold more water.


  • Can be mounted almost anywhere
  • Won’t consume sump pit space
  • Works with most ½ HP pumps
  • Will recharge on its own


  • One of the most expensive
  • You’ll need to buy a deep cycle battery

3. Pump Sentry 822 PS Emergency Power For Sump Pumps

There is no denying the fact that SEC America manufactures some of the best emergency power systems for sump pumps. If you want a reliable one that isn’t overly expensive, you’ll want to check out the Pump Sentry 822 PS. This one is very reliable and you can guarantee that it works as described. When the electricity goes out, this unit will turn on the battery and the pump sump will continue working. That can save your home and prevent future problems. Just remember that you’ll need to buy a 12-volt deep cycle marine battery to use with this unit.

Pump Sentry 822 PS- Emergency Power for Sump Pumps by Sec America
  • 1200 Watt Battery Back Up System, UL & CSA Approved
  • Battery Cables Included, Rugged Aluminum Housing Compact Size

Last update on 2021-10-16 at 20:50  / Images from Amazon Product Advertising API

Many Mounting Options

Some emergency backup systems have to be installed in the sump pit. This isn’t the case with the Pump Sentry 822 PS. This one can be mounted almost anywhere. It can be mounted on the surface or a wall. This will make things much better. You won’t have to worry about clogging up space in the pit with the emergency backup. It will keep everything tidy and out of the way too.

Built To Last

Another good thing about this unit is solid construction. The internal components are protected by an aluminum housing. It is rugged and capable of taking a beating. You can rest assured knowing that this unit will last. Even if you drop it a few times, it will continue working. It is very rugged so you shouldn’t experience any durability issues. Plus, you’re going to be protected by a good warranty.


One of the best things about the Pump Sentry 822 PS is the warranty. You want an emergency backup system that is going to last a lifetime. Otherwise, you’re going to be throwing your money away. This unit is covered by a 2-year warranty. This is great. On top of that, you should know that SEC America is a very reputable company. They’ll do everything possible to ensure that you’re satisfied. This should put your mind at ease since you’ll know that you can get help when you need it.

Automatically Recharges

With some backup systems, you’ll have to remove the battery and recharge it manually when the power is restored. This can be a hassle and you might forget to do it. Therefore, you’ll want to avoid such problems. Instead, you should invest in the 822 PS. This is one of the best units because it is going to charge the battery automatically. Once the power has been restored, the unit will begin providing AC utility power to the sump pump and it’ll recharge the battery too. This will make your job easier and help avoid potential problems in the future.


  • Will automatically recharge the battery when power is restored
  • Rugged construction keeps the internal components safe
  • Protected by a great 2-year warranty
  • You can mount it on the wall or surface


  • Some units may overcharge the batteries
  • You may experience quality control issues

4. Wayne WSS30V ½ HP And 12-Volt Battery Back-Up System

The Wayne WSS30V is a pump sump with 12-volt battery back-up system. The system is designed to work when the water reaches a specific level during power outages. For homes in tornado alley, the Wayne WSS30V is the ideal setup. The system is reliable and very easy to set up, regardless if it is installed in the basement, crawlspace, or other confined area.

Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back Up System , Black
  • New and upgraded WAYNE WSS30V. Completely pre-assembled and drop in ready.
  • Primary pump float switch tested to 1 million cycles, up to 10X more than competitors.*

Last update on 2021-10-16 at 20:50  / Images from Amazon Product Advertising API

Easy Installation

The Wayne WSS30V comes with an in-depth, step-by-step installation guide. The guide will ensure you sail through the process with little to no difficulty. If you encounter any problems during the installation process, you can contact Wayne’s customer service department. A knowledgeable representative will walk you through the process.

If you follow the step-by-step installation guide, you should be able to complete the process in 15 minutes or less. This quick installation is not guaranteed by most of the competitor brands.

Float Switch

The sump pump is integrated with a vertical float switch. This component plays a major role in the operation of the sump pump. When the water rises, the float switch will also raise. And, vice versa when the water recedes. Once the float switch reaches a specific point, a sensor will alert the sump pump to turn on. When the float switch reaches the minimum level, the pump will automatically switch off.

No Assembly Required

The Wayne WSS30V is shipped preassembled. Besides the 15-minute installation, the sump pump and back-up battery system is ready to use right out of the box.


The Wayne WSS30V is a reliable sump pump system that will work continuously until the water level reaches a minimum level. The pump is guaranteed to work when the electricity is connected and during power outages. The system must be paired with a rechargeable battery to work. You will need to purchase a battery separately. You can refer to the included owner’s manual to determine what type of battery to purchase. It is recommended to buy a marine-type or deep cell battery for this setup.


  • Guaranteed 15-minute installation process
  • Reliable, high-quality vertical float switch
  • High-performance sump pump – moves up to 2900 GPH at 0 feet of head
  • Low operational noise


  • Does not come with a battery
  • Check valve is sold separately

5. Zoeller 508-0005 Aquanot Battery Back-Up System

The Zoeller 508-005 Aquanot is a high-quality battery back-up system. The system includes a sump pump and a back-up battery. The 12-volt battery is activated when the electricity is disconnected and the water reaches the minimum level. This is the ideal setup for homes in rural areas, where the electricity frequently fails during storms.

Zoeller 508-0005 Aquanot 508 Battery Back-Up System
  • 12 volt highly efficient noncorrosive pump construction
  • Integrated check valve

Last update on 2021-10-16 at 20:50  / Images from Amazon Product Advertising API


The sump pump is constructed of durable materials that are resistant to rust and corrosion. The construction is guaranteed to ensure durability and longevity in the harshest conditions. The internal components are also of the highest quality. And, everything is nestled inside of a sealed casing to prevent water from penetrating to the internal compartment.

Compatible With Home Security Alarms

To offer peace of mind in knowing the system is working correctly, it is compatible with most home security alarms. Connecting the Zoeller 508 to your home security alarm is simple and quick. Just follow the step-by-step instruction guide to complete the process efficiently. Once the systems are connected, any malfunctions will initiate an alert. So, you can fix the problem in a timely manner.

Compact Design

Unlike some sump pump battery back-up systems, the Zoeller 508 has a compact design. This design eliminates the need for a large storage space. The compact design makes this the ideal sump pump back-up systems for homes with small crawlspaces and basements.

Float Switch

The Zoeller 508 has a vertical float switch that operates on low voltage. When the water reaches a specific level, the float switch will raise and trigger a sensor to turn on the sump pump. When the water recedes below the minimum level, the sensor will trigger the sump pump to switch off. Since the float switch operates on low voltage, you will not have to worry about an increase in your electric bill.


When the Zoeller 508 is purchased with an Aquanot battery, it will be backed by a 36-month warranty. The warranty is limited to 12 or 18 months when purchased alone. Investing in a complete system, with battery and sump pump, will be your best option.


  • Embedded with various protection features
  • User-friendly LCD screen
  • Compact, durable design
  • Easy installation


  • Does not come with a battery
  • Warranty is limited to 12 months when purchased without a battery

Buying Guide: How to Purchase The Best Battery Backup Sump Pump

Buying a sump pump backup will be slightly more difficult than you might believe. Buying one of these devices requires a lot of research on your end. Below, you’ll learn about the most important factors to consider when investing in a battery backup sump pump.


First and foremost, you should find out how much water the unit can discharge. If the unit is too weak and it is raining too much, there is a good chance that the unit will not be able to keep up. This will create problems for you and your family. Just remember that the discharge of the unit will depend on the height of the water. Some of the best pumps are capable of moving a maximum of 2,900 gallons per hour at 0 feet. It is pertinent to invest in a powerful unit. Otherwise, it might not be able to keep up with the demand.

Make sure that your backup battery system and keep up with the demands of the sump pump.

Battery Life

While you’re at it, you’ll want to look at the life of the battery. After all, the battery is not going to last forever. In the event of an emergency, you need the backup sump pump to run for many hours. Therefore, you’ll need a good battery. Some of these units are capable of pumping out 10,000 gallons when the battery has been fully charged. Once the electricity has come back on, you will be able to recharge the battery and you’ll be good to go.

Either way, you should make sure that the unit will work many hours without electricity. With many units, you’ll have to buy a battery separately. It is wise to choose a unit that will automatically recharge the battery once the electricity has been restored.


Next, you will want to check out the system’s warranty. You need to make sure that you’re going to be spending your money to the best of your ability. You will not be able to do that if the unit dies after a few months of use. The unit should be solidly constructed to ensure it is going to last many years. On top of that, you should get a pump that is protected by a good warranty. A 2-year warranty is good but anything longer is even better. Either way, you should not buy a sump pump unless it has a warranty. You’ll regret it if you do.


Sump pumps can be very beneficial. However, you should think about investing in a battery backup for the existing sump pump system. This will help you avoid problems in the event that the electricity goes out. Be sure to rely on the buying guide above to ensure that you’re able to invest in the best backup sump pump for your needs. The backup system will make your outdoor sump pump much more effective.


What Are The Two Types?

You should know that there are two types of sump pumps. You can choose between a submersible model or a pedestal model. While both will get the job done, they’re different in several ways. The pedestal pumps will be much cheaper but they’re at a greater risk of getting hot. They do not rest in the water so they’re not going to be cooled by the water. If you want to minimize the risks, you should invest in a submersible pump. While you’ll end up spending more, there is a good chance that your sump pump will last longer.

What Else Is Needed?

Ultimately, you’ll need several different items before you can install the device. You’ll need the proper pipe and fittings. Simultaneously, you’ll need a check valve and a sump cover. You can invest in a sump pump alarm too. This will prove to be very beneficial. Alarms work in two ways. Some can tell you when the water is overflowing. Others can alert you when the battery is running low. To avoid problems, it is best to choose a unit that features an alarm.

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