Best Battery Backup Sump Pumps Reviewed

Gary Johnson
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You don’t want to be downstairs enjoying a movie or a nice dinner when the power goes out and suddenly you hear a gurgling noise coming from the sump pump. You drop everything and run downstairs to find it running, but shorting out. You know you have to replace it, but also know that doing so is going to be a whole hassle and a major expense.

So you take a deep breath, clean the debris out of the sump pump and get to work. Unfortunately this is one of those things that you have to plan for in advance, as a backup for your backup sump pump.

You may know that there is a product out there called a Battery Backup Sump Pump. It keeps water from rising in a sump pump that has no power to run it.

The best battery backup sump pump will help you achieve 2 things:

  • Back up the sump pump when the power goes out and prevent water damage to your basement
  • Reduce your power bill by only running the sump pump when it is needed

For some of you, you’ll have enough of a backup system in place to not need one of these battery backup pumps.

NameCategoryProduct
Superior Pump 92910 12V Battery Back Up Submersible Sump PumpBest OverallSuperior Pump 92910 12V Battery Back Up Submersible Sump Pump
Weize 12V 75AH Deep Cycle BatteryBudget PickWeize 12V 75AH Deep Cycle Battery
WAYNE BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection SystemUpgrade PickWAYNE BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection System

1. Superior Pump 92910 12V Battery Back Up Submersible Sump Pump

Our rating: 9 / 10

Superior Pump 92910 12V Battery Back Up Submersible Sump Pump

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Pros:

  • Quiet
  • Easy installation
  • Reliable

The Superior Pump 92910 12V battery back up sump pump is a reliable product that has a long list of customer reviews. Comparing it with its counterparts we found it to have enough momentum to overcome high water levels that come from excessive rains and other sources of water outside the home.

A battery powered product of this kind needs a homeowner to press a button to start the pump. It has different settings that require pressing for different periods of time from two to ten seconds. This will control the speed in which the pump delivers the water outside the home and the amps used for more power. The larger the pump, the higher the amount of power it will require.

According to user reviews, the Superior Pump 92910 is so quiet that it will not disturb you in your sleep. Its battery is monitored by a battery charging system. Whenever it senses that the battery is getting low in power, it will automatically charge the battery. This way the owner can get the full benefits of the backup system without needing to visit the sump pump with a wrench and another battery to reenergize it.

2. Wayne ESP25 Upgraded 12-Volt Battery Backup System

Our rating: 9 / 10

Wayne ESP25 Upgraded 12-Volt Battery Backup System

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Pros:

  • Get the job done
  • Great at keeping your basement dry
  • Runs well even when the power is out
  • Easily stores and unplugs when you don’t need
  • Good value for the price

Cons:

  • Sound is a bit on the loud side
  • Some customers have reported that the system doesn’t run as long as advertised
  • Capacitor can be faulty
  • Got slimy right away

6 Outlets, 25-Amp Hardwired Automatic Transfer Switch.

In a market full of basement pump options, the Wayne ESP25 is unique because it also combines a transfer switch that will work with your home’s AC outlets and monitors the status of your backup generator. It does this with 12 amp/125 volt outlets. You can also switch between AC, DC, solar, and battery backup to accommodate the situation.

3. WAYNE BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection System

Our rating: 9 / 10

WAYNE BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection System

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Pros:

  • Internet and Smartphone Connected
  • Active Leak Detection
  • Ability to change pumping schedule
  • Ability to check water level remotely
  • Comes with 10-year limited warranty
  • Solid battery backup and pumping power
  • No monitoring fees, additional warranties, or setup charges
  • Battery can be replaced on your own
  • Includes a free camera
  • Pump is quiet

Cons:

  • Limited compatibility with sprinkler systems
  • Uses WiFi, which isn’t always available
  • Expensive

The Wayne BGSP50 is the best homeowner sump pump on the market at the moment. The system is the easiest solution that will keep your basement dry and your family safe from floods. The pump uses the latest internet-connected technology and smartphone app for you to see what’s happening with the pump and to access your pump settings from anywhere in the country.

There’s no need for you to take a plunger to your sump pump ever again. The Wayne BGSP50 seeps your water away through a grated opening at the bottom of your well, which is 6-by-5 inches. The pump uses a powerful 1/2-horsepower motor that can pump 585 gallons of water a minute.

4. Pump Sentry 822 PS

Our rating: 9 / 10

Pump Sentry 822 PS

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Pros:

  • Perfect for long-term use
  • Easy to install and setup
  • Plenty of safety features
  • Low battery powered sump pump system
  • Easy to program
  • Affordable

If you have a basement or any other area with a sump pump, you need some sort of backup plan in case that pump fails. The Pump Sentry 822 PS Emergency Power System provides the battery backup you need to get out of the water and protects your home from water damage.

This battery backup pump system features a 10-year warranty and a pump that turns on when your primary pump fails, and it ensures that your pump never runs dry. The system holds its charge indefinitely.

Putting it together is easy, thanks to the detailed instructions. You just need to run a battery cable from the Pump Sentry to your pump, and then connect a wire from a 12-volt battery to the system. Follow the easy instructions on how to program the system with your primary pump and how to hook up the battery cables. You can choose from four different warning options so you’re not awakened at 3 am to a full basement.

5. PumpSpy PS2000 WiFi Battery Backup Sump Pump System

Our rating: 8 / 10

PumpSpy PS2000 WiFi Battery Backup Sump Pump System

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Pros:

  • Exceptional battery backup system for when the power goes out
  • Alerts sent to your phone if the system fails
  • Great for use in areas where weather can affect power supply
  • Find out who sells a backup sump pump near you

Cons:

  • High price point
  • Not ideal for most homes

PumpSpy is the best battery backup sump pump on the market. It is ideal for areas that are prone to flooding. In an emergency, the pump will automatically switch on before the water rises. The set up is simple and the alert system is top notch.

The system includes a 120 watt power panel and a 7 AH battery with a charger. The alert system informs you about system failures, power outages (both home and pump), and pump tests. The 12 V battery can be mounted in the trunk of your car (for example) and used as a backup in case you lose power in a storm.

Also, the 5 foot long cord that connects the 12 V battery to the system allows you to install the battery in a more convenient location.

6. Weize 12V 75AH Deep Cycle Battery

Our rating: 8 / 10

Weize 12V 75AH Deep Cycle Battery

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Pros:

  • 75Ah battery system
  • Charges very quickly
  • Overcharge, overheat, overcurrent, and short circuit protection system
  • Run time is up to 36 hours
  • Made with lead-calcium, which means it is low self-discharge
  • Excellent customer service

Want to maximize the life of your back-up sump system? Make sure to buy a high-quality battery. And to do that, you need a Weize 12V 75AH Deep Cycle Battery for Wayne ESP25 WSS30V Backup Sump Pump, Trolling Motor, Solar System, Mobility Wheelchair, General Use.

This battery is capable of performing under the harshest conditions with its spill, vibration, shock, and temperature resistance.

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

Our rating: 8 / 10

Zoeller 508-0005 Aquanot 508 Battery Back-Up System

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Pros:

  • Automatic and manual pump activation
  • Fully-enclosed design with no external vents
  • Excellent price point

The Zoeller 508-0005 Aquanot 508 Battery Back-Up System is a great budget-friendly choice for your battery backup sump pump. Its fully enclosed design allows you to install it with other components without worrying about water seeping into the pump.

The back-up system is easy to install. In fact, even if you’re not a handy person, the step-by-step instructions will guide you through it.

The batteries included in this back-up pump are rechargeable and easily replaceable in case you need to do so.

8. Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back Up System

Our rating: 8 / 10

Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back Up System

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Pros:

  • Best Value–Works with wayne 12 volt pump and your existing 1/2 hp pump
  • Good functionality–Sump pump automatically switches from 1/2 hp to 12 volt battery system when power goes out
  • Easy to install-Installs in the pit within a couple of minutes, making it very convenient to install
  • Durable and reliable-The electrical box is made of metal frame and the rest is made of ABS plastic, making it durable and reliable

Cons:

  • Slow–This is not a high-wire product, and it’s not a high-speed pump. If you need it to run fast, then don’t buy this.
  • Battery required-It requires two D batteries, which must be purchased separately to use this product.

Overall, the Wayne WSS30VN is an excellent product. It’s good that Wayne suggests the best batteries to use with their pumps. You can get these batteries with the pump itself, or you can get them on their own. These batteries are suitable for this Wayne pump, but they can also be used with some other kinds of hydro pumps.

9. THE BASEMENT WATCHDOG Model BWE 2,000 GPH at 0 ft. and 1,000 GPH at 10 ft. Emergency Battery Backup Sump Pump System

Our rating: 6 / 10

THE BASEMENT WATCHDOG Model BWE 2,000 GPH at 0 ft. and 1,000 GPH at 10 ft. Emergency Battery Backup Sump Pump System

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Pros:

  • Great for severe weather
  • Easy to use
  • Easy to install
  • No assembly required
  • Comes with remote control

Cons:

  • Expensive
  • Does not work that well when the sump is more than 8 feet deep

With 10 ft. Wired Remote

You might not think of a sump pump as being an essential item, but when you have one, your basement will never flood again. The Basement Watchdog Model BWE 2,000 GPH at 0 ft and 1,000 GPH at 10 ft is a top pick for battery backup sump pumps. If you have another basement watchdog installed in the basement, the one you order will instantly backup the other in case the power goes out, meaning that your basement will never flood in the case of a storm, heavy rain, or a power outage.

This battery backup pump is easy to use and can be controlled remotely using the handy 10 foot wired remote that comes with the set. Due to its quality build and thorough instructions, installing this basement watchdog is a breeze. Plus, the fact that you don’t have to assemble anything makes it even easier. You’ll be up and running in no time.

Frequently Asked Questions (FAQ)

Who makes the best battery backup sump pump?

There are dozens if not hundreds of battery backup sump pumps from which to choose. Some are a one-time purchase while others last a lifetime. Which is the best to choose?

The most important factor is the pump itself. If you have a single-pump system, then the same backup unit could work just fine. If you have a dual-pump system, then make sure it supports both pumps.

Next, we suggest you look at the battery source. Most of these backup pumps are self-powered, but the self-powering options are generally a little more expensive. Instead, look for a model that uses standard AA or AAA batteries. They are cheaper, easier to find, and are faster to change out if your pump needs a quick recharge.

How long will Sump Pump Battery Backup Last?

Sump pumps are an essential piece of hardware in homes vulnerable to flooding and large amounts of rain during heavy storms. As you probably already know, the sump pump is a mechanical device that pushes water out of your basement and back into natural drainage.

Using a sump pump is much more effective than traditional drainage methods because it eliminates the need for gravity to push water away from your foundation. Sump pumps become even more helpful in homes that have basements that slope towards the outside. In these homes, water will begin to pool or run back towards the foundation unless something is done to keep it outside.

In the US, over 10,000 homes experience basement flooding annually. These numbers are staggering enough, but when you consider the immense damage losses, they are downright frightening.

Is a battery backup sump pump worth it?

Having a battery backup for your sump pump can be critical in protecting you home in the event of a prolonged power outage. When the power goes out, your primary pump will turn off and your battery backup will immediately kick on to protect your basement.

As long as the power outage doesn't last too long, the battery backup will keep your basement dry. However, if the power outage lasts longer than your battery is designed to handle, then you might find yourself in a bit of a predicament.

The first thing you should do is contact the makers of the battery backup and find out how long their batteries should ideally run continuously. If your brand is in line with that, then consider buying a new battery for the backup. However, if your brand is not ideal, then your battery might be aging. If this is the case, then you may want to have a professional company come and test your back-up pump and battery.

How often replace backup sump pump battery?

How often you need to replace the battery in your backup sump pump depends entirely on how often you use it. Having your battery tested and looked at by a professional in every 6 months is important to prevent any issues.

During the full test, professional will check the full battery and/or battery backup system to make sure there are no cracks, upgrade the backup pump and finally check the battery for charge. However, before that, the frequency of battery replacement depends on the use.

If you have to replace sump pump battery frequently, make sure you turn on the pump for several minutes every week and test it. Sometimes, the frequency of use makes the entire system becomes weak and you need to buy new battery.

Conclusion

It is always wise to buy a backup pump if you have a sump pump. It can give you peace of mind when a storm is brewing. You can use this buying guide to figure out which backup sump pump is best for your home use, be it a constant stream in heavy rains or the pump going off and on due to a heavy storm. We hope this guide will help you find the sump pump that meets your needs.

Our Recommendation

NameCategoryProduct
Superior Pump 92910 12V Battery Back Up Submersible Sump PumpBest OverallSuperior Pump 92910 12V Battery Back Up Submersible Sump Pump
Weize 12V 75AH Deep Cycle BatteryBudget PickWeize 12V 75AH Deep Cycle Battery
WAYNE BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection SystemUpgrade PickWAYNE BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection System