Best Sump Pump Battery Backup Reviews & Buyer Guide 2021

best battery backup sump pump

Owning an efficient battery backup sump pump is very essential to avoid all the flooding issues. This is how one avoids unexpected happenings that may affect the basement or the house. Providing several more hours to protect your basement/home from the water, the battery backup sump pump may greatly supplement the main pump.

We know that you care about your houses, and to prevent any such incidents, the best battery backup sump pump works as a lifesaver. However, a sump pump with battery backup is all you need. It provides sufficient ease when the power goes out.

Keeping all the essential features one needs in the best battery backup sump pump, we here have listed all the well-known and highly regarded brands. You may choose any of these sump pumps to make your house maintenance easier.

Sump Pump Battery Backup Benefits

The primary purpose of using a battery backup sump pump is to save the house from flood/water. However, it provides tons of benefits like additional protection and also permits the main pump to work continuously even when the power goes out.

Moreover, it does reduce your overall house maintenance expenses. Protecting your basement, makes you feel safer and saves your money too. Convenience is another fact that it provides to the users.

In short, it is packed with benefits and ease & tons of other beneficial features. You can always count on the battery backup sump pump for the fact that it does provide against the unwanted water. Moreover, it works well and luckily doesn’t take up a lot of space.

Essentials to look for in a Backup Sump Pump

Best Battery Backup Sump Pump

1. Wayne Battery Backup

wayne esp25 12 volt battery backup for sump pump

The Wayne ESP25 is a standard sump pump that can push out almost 2700 gallons every hour at 0 feet. Being one of the most highly regarded brands, it is a very powerful pump i.e. almost equivalent to 1/3hp. Likewise, the unit is highly compatible with maintenance-free batteries. However, it is recommended that you use WAYNE WSB1275, 75 AMP hr maintenance-free battery.

Moreover, the unit features an easy-to-read LED display. The audible alarms sound display alerts and charging levels etc. in case of powers failure status, the health indicator easily shows the information. All the systems are integrated with the alarm that shows backup system readiness.

Additionally, the unit is made of epoxy steel body and cast-iron base that prevents corrosion. The installation is also very easy. Overall, this battery-powered backup pump is silent and a durable unit. It easily pumps a great amount of water in less time.

  • Performs well and durable
  • Audible alarm features
  • Easy install
  • Silent
  • The unit is a bit pricey
  • The product package doesn’t offer a battery

2. WAYNE Guardian Premium

WAYNE BGSP50 Guardian Premium review

The Wayne BGPS50 can provide complete basement protection. However, it depends on you to choose to power it via AC power or its backup battery. It smoothly functions with the battery for straight 6 hours pumping up water up to 11,000 gallons. As it is compatible with both Apple IOS and Android mobile apps, you can continuously operate and monitor the device when the power is out. Made of iron, the unit comes with full durability and product safety.

Moreover, its innovative Local Link technology transmits data to the app during power outages, for connectivity when your Wi-Fi router is down. The solid-state air switch reads water level and automatically turns pumps on when required. In short, this is a great unit with easy installation.

  • Two power options i.e. AC and battery
  • Easy to install
  • Ability to function well
  • Wi-Fi connectivity
  • A bit heavy
  • Expensive for sure

3. Wayne Upgraded Combination

Wayne WSS30VN Upgraded Combination review

The Wayne WSS30VN sump pump being pre-assembled and ensuring 1 million life cycles is the best pump claimed by the experts & others. The unit functions on a 75 AMP, 12-volt battery with the ability to remove 5,100 gallons/hour at 0 feet of head. However, the pump moves about 2,900 GPH at 0 feet of head when functioning on 12V DC backup.

Featuring LED alarm systems, the unit lets the user know about the status updates. Being an ultra-quiet and noiseless unit, the pump is a great choice for your basement. Moreover, the exterior is made of rugged cast iron, epoxy-coated construction that makes it durable. It is also strong enough to survive the rough usage and hard applications.

Speaking of its installation, it comes with quick and easy install. Moreover, the top suction design of the pump prevents clogging, etc. the unit is a great choice for those who want to protect their homes from water.

  • Pre-assembled unit
  • Easy to install and setup
  • Greatly silent
  • No battery included in the package
  • Heavy to carry

4. Basement Watchdog

Basement Watchdog BWE review

The Basement Watchdog Emergency battery backup sump pump system offers comprehensive basement flood protection at a great price. It has a built-in monitoring system, a patented dual float switch, and an energy-efficient pump that automatically protects your basement when needed.

Here comes the basement watchdog emergency battery backup sump pump with a built-in monitoring system. Being highly energy-efficient and containing a patented dual float switch, this unit greatly protects the basement when required.

The unit can pump water up to 1,000 gallons every hour at 10 feet of lift and 1,000 GPH at 0 feet of lift. It features a sensor monitor that informs about battery fluid levels. The unit comes with a controller, charger, dual float switch, pump, and battery box (battery sold separately).

Shortly, it is a compact pump that you can install even in small or narrow sump pits. It is compatible with wet cell or maintenance-free (AGM) batteries. Featuring user-friendly control penal that lights up with a warning and tells what to do for simple maintenance.

  • Comes with an AGM battery
  • Easy to install
  • Readable alarm lights
  • Heavy
  • Alarm keeps on beeping until reset

5. Zoeller Battery Backup Sump Pump

Zoeller 508-0006 Aquanot review

This is a great unit that is highly packed with features. The unit comes fully assembled, and features a 115 volt DC backup system that makes it powerful. The 10A automatic charger provides enough flexibility and fast charging.

Moreover, it features an automatic controller with alarms, light indicators, and warning systems. Featuring an LCD screen, the unit lets you know about the battery voltage and all the digital readouts provide all vital information. The unit provides extra protection in case the main AC fails due to power outages.

It makes nice all-in-one simple package. However, the unit is quite silent and works extremely well. Well designed and extremely powerful pump is all you need. In short, you would love its durability, multi-security, and quiet performance. It is exactly worth the price.

  • Solid and well-made design
  • An automatic charger
  • LED light indicator
  • Quiet performer
  • Complicated assembling
  • Fairly heavy

6. Superior Pump Battery Backup

Superior Pump 92900 reivew

Another great pump is a superior pump 92900 that is not actually a primary pump but works well in conjunction with a main AC-powered pump. It provides enough ease being a 12-volt sump pump pumping up to 1380 gallons per hour.

The unit provides you temporary backup in case of power outages and malfunctions with the main pump. However, it mainly is designed to work with 12 volts lead-acid deep cycle marine / RV batteries. It also performs best with AGM batteries. Made of a thermoplastic battery box, this unit is quite durable and long-lasting.

Speaking of its installation, it installs easily. In short, it comes with an affordable price and does the work perfectly well. Moreover, the Tethered float switch to automatically turn the pump on/off is great.

It features a 1-1/4 inch or 1-1/2 inch NPT discharge for high-capacity pumping. A well-made unit with quality components is what Superior Pumps always offer.

  • Easy installation
  • Durable and long-lasting
  • Compatible with AGM batteries
  • 10-foot cord length
  • Alarm beeps continuously till reset

Battery Backup Sump Pump Essentials

We can’t ignore the fact that backup sump pumps are quite necessary to get rid of unwanted water. No matter what brand you choose, there are always some important factors you need to consider before making the final purchase; let’s make it easier for you to understand more thoroughly what to look for in a backup sump pump.

1. Size

The size of the backup sump pump matters. If the size of your sump is small, you would need to consider a small backup pump. Moreover, you are the one to be sure if you have enough space at home for its installation. Ideally, people prefer backup pumps with space-efficiency.

2. Power

The product should have enough capacity to supply the required energy needed per day. However, this is always defined in the product description part. The powerful backup pump saves both time and energy.

3. Quality

Quality of course is the most important factor one considers making a purchase no matter what the product is. The same is the case with a backup pump. You need to see what it is made of, whether the material is durable or not. Units made of cast irons are durable and comes with full longevity. However, some people also go for plastic units, but they are not as durable as cast iron. That is dependent upon your budget.

4. The safety features and installation

You need to consider the safety features before your final purchase. Safety matters most when you have children at home. The product with maximum safety is all you need.

5. The Installation

You don’t want a product with a tough installation process. Avoid buying units that needed extra tools for their installation. This is how you would save both time and money.

6. The battery charging capacity

The battery charging is another vital factor to be considered. You need to check the voltage of the charger that complements the pump. Some take more time to charge the batteries. In critical cases such as frequent power outages, you need to purchase a considerably large battery.

7. The Pump Capacity

Pumps exceeding 35 to 6o gallons per minute or in other words, pumps that exceeds about 36,000 gallons per hour is a pump with ideal pumping capacity. So, going for an ideal pump with an ideal pump capacity is always the rational choice.

Confusions You May Have About The Battery Backup Sump Pumps:

A few of your considerations might include several questions you need an answer for. People mostly feel to ask what is the best battery for a backup sump pump. I guess AGM batteries are technologically superior and are ideal to use for the backup sump pump.

One mostly ponders if a battery backup sump pump is worth it. For them, I would say if you are facing flooding issues and power outrages frequently i.e. once a year or more, then the investment in a battery backup is exactly worth it. This is how you would be able to provide enough safety to your house.

Another confusion that may arise is about how long sump pump backup batteries last. Well, it depends as some of them last for up to 53 hours with a pumping rate of 2,300. On the contrary, in case of some real serious water issues, it may last only 12 hours as the functions of the pump every other minute. Lastly, if you have confusion if you can use a car battery for a backup sump pump. Let me make it clear, a car battery would never last long.


You may already be aware of the significance of owning the best battery backup sump pump. However, we also did our effort to provide you enough information. The above-listed pumps are all efficient devices providing you enough protection against floods and unwanted water. An efficient and silent pump is all you need to get the job done.

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