Best Battery Backup Sump Pump in 2021: Unbiased Reviews

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The risk of losing expensive home appliances and your precious personal possessions is not a trifling matter.You’re looking outside enjoying the rain, the basement flood doesn’t bother you, as you have a sump pump. But-wait! What if you have a power outage? What if your neighborhood electricity goes off, and you still have a lot of water entering your basement, what then?

The risk of losing expensive home appliances and your precious personal possessions is not a trifling matter. And to top it all, if the basement stays damp for days, mildew and mold can start forming on the wooden foundation of your house and weaken it. If power cut is an issue for you, you need a battery backup sump pump that can drain the clogged water despite a power outage.

Here in this article, we have carefully cataloged some of the best battery backup sump pumps that are available.

With this by your side, you can make a careful and calculated decision on what works perfectly for you and your household. If you’re looking for a quick suggestion, then we would recommend Wayne WSS30VN Upgraded Combination for people with a reasonable budget. This pump comes from a top-notch brand; also, it is equipped with a ton of premium features. Tight on budget? Then we suggest you look into the Wayne ESP25. Again, coming from the same top-tier manufacturers, it’s a budget-friendly and reliable beast.

Editor’s Choice
WAYNE - 1/2 HP Sump Pump with Integrated Vertical Float Switch and 12 Volt Battery Back Up Capability, Battery Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty Basement Sump Pump System
Best Value
Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black
Wayne BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection System, Black
Wayne WSS30VN Upgraded Combination
Wayne ESP25 Upgraded
WAYNE BGSP50 Guardian Premium
23.5 x 18.2 x 14 inches
17 x 10.5 x 14 inches
13.5 x 9 x 15.5 inches
44.4 pounds
23.1 pounds
66 pounds
5100 GPH
2900 GPH
11000 GPH
3 years
2 Years
5 Years
Editor’s Choice
WAYNE - 1/2 HP Sump Pump with Integrated Vertical Float Switch and 12 Volt Battery Back Up Capability, Battery Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty Basement Sump Pump System
Wayne WSS30VN Upgraded Combination
23.5 x 18.2 x 14 inches
44.4 pounds
5100 GPH
3 years
Best Value
Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black
Wayne ESP25 Upgraded
17 x 10.5 x 14 inches
23.1 pounds
2900 GPH
2 Years
Wayne BGSP50 Guardian Premium Wi-Fi Connected Total Basement Protection System, Black
WAYNE BGSP50 Guardian Premium
13.5 x 9 x 15.5 inches
66 pounds
11000 GPH
5 Years

Last update on 2023-03-11 / Affiliate links / Images from Amazon Product Advertising API

Best Battery Backup Sump Pumps Review

After scouring through the market, we came with a list of the top 13 battery backup sump pumps. Now, we present a brief review of each product for your perusal.

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

With a stellar reputation, consistent performance, Wayne WSS30V makes the top of your list. Simplifying your way of managing the basement. Its amazing backup battery system will save your basement when there is a power outage. You do not have to worry as, within a single charge, it functions for an extended period. Therefore, it is the best rated sump pump battery backup.

Short Overview

  • 5100 GPH
  • Pre-assembled
  • Larger Sump Basins
  • 12 volts
  • Epoxy coated steel
  • Long Life Span
  • Cast iron construction

Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

Furthermore, at 0 feet of head, it drains out 5100 GPH of water; while there is no electricity, it discharges about 2900 GPH of liquid. The amazing DC pump never fails to get activated at the right moment. Additionally, its robust structure will let you enjoy this top-quality pump for a few guaranteed years. Without the chance of any abrasion, the durable cast-iron results in long-lasting performance.

The floating switch keeps you updated on the rising water level. If the height level exceeds or there are any potential problems, the alarm rings aloud. However, you can install the equipment without unnecessary trouble.

  • The alarm rings whenever it faces an alert
  • You can install it with the help of the manual
  • Its DC pump moves a large amount of water
  • Build is sturdy
  • It is a bit expensive than others
  • Wires of the pump are not long enough

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2. PumpSpy PS2000 WiFi Battery Backup Sump Pump System

If you are tired of checking over your sump pump and looking for a substitute, have a look at the PumpSpy PS2000. Your basement will be in the safe hands of the best rated battery backup sump pump. It is quite impossible always to keep an eye on the machine and be cautious of any alert.

Short Overview

  • Remote Internet Monitoring Free
  • Flow rate 3000 GPH
  • 16 x 17 x 11 inches
  • 120 volts
  • Dual Float Switch
  • Battery life average 166 hrs
Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

The notification-tech keeps you updated about the battery charge, pump failure, or high-water level issues, making your life easier. Furthermore, though the app on your cellphone, it will send an alarm. You can check over the gadget from any distant location. Even when there is no electricity supply, the app works perfectly without a Wi-Fi connection if you have mobile data.

The backup system gets activated automatically when there is a power outage. Besides, it can lift about a maximum of 2990 GPH of water. As it is constructed with cast-iron, you can be assured of its durability.

You will get to know the water level, which is detected by the air switch, battery condition, whether the main pump or these pumps is working by the LED lights. Moreover, you can easily connect it to any sump pumps you had previously.

  • The app keeps you notified of any issues
  • After a power-cut, the pump system gets automatically activated
  • It can lift a huge amount of water
  • You can use it with other old  pumps in your home
  • Connecting the app to the cellphone is a bit critical
  • The manual is hard to understand

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3. WAYNE BGSP50 Guardian Premium

For those who are desperately looking for smart basement protection, allowing them to have a sound sleep, the WAYNE BGSP50 Guardian Basement Protection System is highly recommended.Due to its fantastic backup system, even after electricity outage, the cell works for almost 6 hours, saving your basement.

Short Overview

  • Solid state air switch make sure reads water level
  • cast iron
  • Solid Aluminum
  • Drains11,000 in one charge
  • Two superior processor
  • Monitoring Apps connectivity

Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

As it functions for a long period, it proves itself as the top-rated backup sump pump systems. Moreover, its construction with cast-iron ensures its rigidity and sturdiness. Regular contact with water or air fails to cause rust formation. However, as you are provided with two pumps, if one pump fails, you can shift to the other.

Its auto-performance saves your time and effort; the gadget gets automatically activated whenever needed. Within a single charge, it can drain out 11000 gallons of water, which equates to the volume of a pool.

The float switch senses the water level and notifies you through the mobile app; additionally, you will get informed of the battery charge or any alert despite poor or unavailable Wi-Fi connection. Its installment procedure is easier than expected.

  • With a single charge, it performs for 6 hours
  • You will always be updated through the app even when there is a power-cut
  • It discharges an adequate quantity of water
  • The switch detects the water height and operates automatically
  • You have to buy an extra battery
  • The battery gets heated up quickly

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4. Wayne ESP25 Upgraded 12-Volt Battery-Backup System

Wayne ESP25 has excellently performed throughout so many years, you can fully trust their sump’s quality. If you prioritize this product, you will never be disappointed with its operation. It comprises an epoxy steel body with the cast-iron base, which endows the machine with fantastic strength, confirming long-term durability.

Short Overview

  • USA Assembled
  • 2900 GPH
  • Alarm sounds audible
  • Led system shows reading of system backup

Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

There is a high chance that it will continue functioning despite having some mechanical issues. Additionally, if there is a power failure or any alerts, you will get to know through the LED screen. It indicates the present battery condition for you to be always prepared. The alarm that is loud enough rings after the backup system is activated.

Even if there is no electricity, the best sump pump with battery backup will continue serving as the battery remains charged for a long time. You do not have to worry about the basement at that time.

Moreover, there are no complications while installing it. It can discharge 2900 gallons of water at 0 feet, affirming the protection of your product.  The battery case is made of polyethylene, ensuring a firm guard to the battery.

  • You will receive an alarm for any malfunction or battery shortage
  • The LED display makes reading easier
  • It continues functioning even after the power-cut
  • Permanency is highly maintained by the steel configuration
  • It is a bit expensive than others
  • The battery is heavy compared to others

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5. Zoeller 508-0005 Aquanot 508 – Best Rated Sump Pump Battery Backup

Zoeller’s outstanding innovations, coupled with convenient features, never fail to surprise users. The Zoeller 508-0005 Aquanot 508 has industry-leading facilities that are enough to provide smart protection to your basement.The machine is manufactured with devices that let it function automatically. Whenever the water level is high, the float switch detects it and gets the primary sump pump activated.

Short Overview

  • Hand built
  • check valve Integrated
Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

Therefore, you do not have to worry about its operating system. It is one of the best backup sump pump. If there is an electricity outage, the pumps gets on. Within a single charge, it functions for almost seven hours. Though the main pump one discharges high gallons of water, the backup one also drives out a considerable amount.

Additionally, the check valves allow a continuous flow of water upwards through the drainage pipe. Red, green, and yellow light blink to keep you aware of certain issues; the alarm rings whenever it demands immediate inspection.

You can install it effortlessly, only with the help of a manual. The properly sized battery case can accommodate a battery of various dimensions. The polyethylene case and the pump’s robust configuration confirm the permanency of the pump.

  • The check valves prevent the backflow of water
  • Both the primary and backup pumps are activated by the floating switch
  • You are notified of the battery condition
  • The battery case is of appropriate size
  • Some parts are made of plastic
  • The LCD screen is weak and susceptible to damage

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6. Basement watchdog BWE 1000 emergency backup sump pump

If you’re searching for a product that requires less attention, and easy handling, our suggestion would be a Basement watchdog BWE that has amazing facilities to simplify your work. Whenever any technical issues need immediate maintenance, the control panels assist you in the right direction. It indicates the steps that are essential so that you can handle the situation well.

Short Overview

  • free AGM batteries
  • 2,000 GPH
  • Condition of power 24 hrs
Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

Moreover, the float switch detects the water level and activates the primary sump pump. It also activates the backup sump systems when there is an electricity outage. Even if the traditional sump pump one malfunctions, the backup system performs its part.

Its outstanding motor power enables the discharge of 1000 GPH of water at 10-feet. The pump also operates powerfully to drive out a large quantity of water. You can stay away from home at ease as the machine functions on its own.

Furthermore, due to its compact size, it can be installed inside smaller pits. Its installment does not need an expert hand; it’s DIY friendly. The sturdy battery box can hold batteries of various sizes.

  • The LED indicators instruction is a massive advantage
  • Despite an electricity outage, the machine works accurately
  • A considerable amount of water removal
  • Its size saves space in the vault
  • Not the good-looking product, design and color are unpleasant
  • A proprietary battery is needed

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7. Zoeller 508-0006 Aquanot 508 Preassembled Sump Pump System

Undoubtedly, a perfect solution to your basement problems is Zoeller 508-0006. You will be at ease only after you experience the way it protects your basement from flooding and proves itself worthy of your investment.The LCD screen keeps displaying battery condition, voltage, or any other issues that might be troublesome for the equipment.

Short Overview

  • Assembled fully
  • Extra protection if primary one fail
  • Automatic solid state Design
  • Alarm Warning system
  • light indicators

Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

You can always be prepared to handle any type of situation, as the alarm screams out to indicate alert. Moreover, if there is a power-cut, the backup systems get activated automatically, functioning for an extended period. No need to panic for a quick arrangement as the backup cell takes care of the issue.

This best combination sump pump is fully assembled, which means that the regular pump and this device are already connected. Therefore, you do not have to worry about the connections and easily install the machine.

Furthermore, if you are residing in a deserted area, this product is the perfect choice; per minute, it removes 43 gallons of water. Its durability is unquestionable due to its robust structure provided by the cast-iron.

  • As it is pre-assembled, you can install it yourself
  • Its sturdy configuration ensures its permanency for a long time
  • Excellent water moving capacity
  • The LCD screen indicates specific notions
  • You might not like the designs of the check valve
  • The machine weighs about 40 pounds

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 8. Basepump HB1000-PRO Water Powered Backup Sump Pump

As most pumps occupy a lot of space, you must be looking for products that will leave some space empty. For you, Basepump HB1000-PRO water powered backup sump pump, which has a compact configuration, is a solution

Short Overview

  • Can Mount on a ceiling
  • High Pump rates
  • Dual Check valve
  • Radon Sealed systems
  • Hydraulic-powered
Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

.Not all the alarms produce massive sounds for you to take immediate action. This machine generates audible sound, which makes it more advantageous than others. Moreover, anyone can afford it due to its lower price. If you cannot manage enough space to install a pedestal or submersible pump, then it is the high recommendation. It covers a little area as it can be fixed on a pipe. The dual check valves maintain the flow of water in the forward direction.

Additionally, one of its most significant benefits is the absence of a battery; therefore, there is no need to charge it. Per hour, it can remove 1400 gallons of water as its operation completely depends upon the liquid pressure.

Furthermore, the maximum height that it can force the water up is about 15-feet. You do not have to worry about durability as the ironclad grips tightly attach itself to the hoses. The use of polypropylene confirms its lengthy lifespan.

  • It is highly resilient
  • The audible alarm ensures that you take steps at the right moment.
  • A considerable amount of water is lifted by the discharging pipe
  • It covers the least space
  • Installing it takes time
  • It has no LED indicators

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9. Zoeller 507-0005 Basement Sentry

The worst nightmare that you can have is a flooded basement, so if you do not want that to happen, have Zoeller 507-0005 Basement Pump installed. This way, you will be able to deal with all the critical situations. The pump comes with an outstanding battery case made of polyethylene.

Short Overview

  • Battery case noncorrosive polyethylene
  • Solid state automatic
  • Light Indicators
  • Lightweight
Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

There is the least chance of rust formation, extending its life span for a considerable time. Its dimension is perfect for various sized batteries, and its lock strap keeps it safe. Furthermore, the floating switch saves you from disaster. It detects the water height and activates the primary pump at the right moment. Therefore, you do not have to turn it on even when there is a power-cut.

As the backup system operates automatically, you can remain completely stress-free. However, as the motor and pump are in a single unit, you can place it together in the basin. This saves space and also produces little noise.

Additionally, you only have to follow the manual to install it yourself. The battery is protected from getting overcharged as the LED indicators tell you the present cell condition. If there are any technical issues, the alarm rings loud to let you know

  • As it operates automatically
  • It occupies little space in the basement
  • Installing it is very simple
  • You will be notified by the alarm if there are any specific alterations
  • The check valves are of poor quality
  • You have to buy the pump and the battery individually

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10. Superior Pump 92910

If you are looking for a pump that will let you have a soundless sleep, then Superior 92910 Submersible Sump Pump is the best you can have. As the company always intends to deliver excellence, you can fully rely on it.

Short Overview

  • 1,380 GPH
  • 12 Volt
  • Thermoplastic box  battery

Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

As it is a submersible pump, you can set the machine entirely inside the sump basin of your basement. Less noise is heard even when the backup pump kicks up, maintaining a peaceful environment. Moreover, this saves space in your basement.

The machine operates automatically, saving your place from a flood. When the water level gets high, the float switch senses it and starts the primary pump. During an electricity outage, the battery backup operates for an extended period.

You will be amazed by its pumping ability as it can discharge 1380 GPH of water. It can elevate water to the vertical height of 25’. Even the backup system functions fantastically in draining out a huge amount of liquid.

Additionally, a 10-foot long cord is enough for manageable installment. It has a perfect structure with thermoplastic cage, steel shaft, and parts made of copper. The alarm rings to inform you about the potential changes in the system.

  • It saves space and makes less noise
  • The float switch detects the water height to activate the appliance
  • A large quantity of water can be pumped out by it
  • The alarm sounds to alert you of any malfunction
  • It is heavier compared to others
  • The color is unappealing

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11. Pump Sentry 822 PS Emergency

The Pump Sentry 822 Emergency Power for Sump Pump is one of the top rated gadgets you can have to ensure smart protection for your basement. It is a great lifesaver if you have an electricity outage, with its exceptional features.Its flat surface with compact structure lets you easily mount it on the wall, saving your space for a proper fit of the primary pumps.

Short Overview

  • Warranty 2 years
  • Compact size
Best Battery Backup Sump Pump in 2021: Unbiased Reviews |Best Battery Backup Sump Pump in 2021: Unbiased Reviews |

Following the manual is the only thing you need to do for effortless installation. Additionally, it has indicators to make you aware of power output, present battery charge, and the need for battery replacement. This has made your work a lot easier. If there are any potential issues, the alarm rings to alert you.

The aluminum housing guards the device against any extreme force; therefore, you can use it for a long time. It will not get corroded easily. No scratches will be visible on the surface due to its black color.

When AC power is available, the battery charges to function at the right moment. After a power-cut, the product drives energy from the battery and functions automatically. Later, as power restores, the battery starts getting charged again.

  • Fixing it on the wall is simple
  • The indicators keep you aware of specific alterations
  • Its sturdy formation guarantees its permanency.
  • Continuous water flow is maintained
  • Transporting it is challenging
  • You cannot connect it to any app on your mobile

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Liberty Pumps PC457-441 1/2-Horse Power PC-Series

Don’t you think it is high time you choose the right product so that your basement is safe from flood despite the storm? We recommend you Liberty Pumps PC457-441 Sump Pump Combo that will disappear all your worries.

One of its amazing features is its power to discharge water to a maximum head of 33 feet. It allows you to drive out water at a proper height above the basement. The pipes appear with check valves, which prevent the backflow of water.

Additionally, the equipment is already pre-assembled, meaning that the primary and the backup pump are already connected. Therefore, you only have to follow the manual and install the product on your own.

The superb flow of water does not harm the structure in any way as its robust formation is ensured by the cast-iron. Despite the regular contact with liquid, there is little to no rust formation.

Moreover, as the water level exceeds, the float switch turns on. Its backup battery system gets activated after a power-outage; the battery runs for a considerable time, removing 44 gallons of water per minute with a discharge head of 23-foot.


  • The pump generates great pressure to discharge enough water
  • You can effortlessly fix the gadget in the vault
  • Its sturdy structure confirms its permanence
  • As the float switch acts as a sensor, it operates automatically


  • It is a bit expensive than the others
  • Comparatively, it is heavier

Liberty Pumps 441 Battery Back-Up Emergency

Among so many pumps, it must be challenging to select the suitable one that perfectly fits your basement pit. If you do not want to rummage through shops anymore, then go for Liberty Pumps Sump Pump System.

Its incredible motor power drives out a large amount of water, saving your basement from a flood. Even in the absence of electricity, the backup pump discharges enough water.

You don’t have to worry when you are not at home during stormy weather, as the float switch senses the height of water at the right moment. After detection, it turns on the primary pump. It also activates the backup pump, in cases of a power cut.

Furthermore, the robust check valves prevent the backflow of water through the pipes, continuing the movement in the correct direction. However, if there are any technical issues, the alarm rings to let you know.

Green, yellow, and red lights blink to inform you about the present battery protection; the battery is protected from overcharging issues. You can use the machine for a considerable time due to its robust and sturdy structure.


  • It removes a large amount of water
  • The float switch acts as a sensor to automatically activate the pump
  • Due to the check valves, water cannot flow backward
  • Its sturdy configuration confirms an extended lifespan


  • The cord should have been longer
  • It is a bit expensive comparatively

Battery Backup Sump Pumps – Buying Guide

It has come in a variety of models and sizes, meaning you get to select from a wide range of options. However, before you make a purchase, you need to consider a few essential criteria that can help you make the right decision.


When you purchase a device, you would want to get your money’s worth out of it. Keeping the pump dry and well-maintained at all times can be a difficult task. For this reason, choosing a product that is made out of the right material is very important. Damage of water and oxidation can considerably shorten the lifespan of your gadget. Typically, there are three different types of materials that are prevalent. They are cast iron, plastic, and stainless steel.

Cast Iron

Most of the pumps sold in the markets are made out of cast iron. They are very sturdy, long-lasting, and can do a lot of heavy-duty work, especially under extreme circumstances. However, there are a few disadvantages to using one. Cast iron products are hefty, which is why carrying them is a herculean task. They are also very prone to rusting. If the pump is not properly maintained on a regular basis, then it will undergo oxidation. And, you would have to replace it every few months. So, to prevent this from happening, most of the manufacturers apply a layer of epoxy coating on the pump to reduce the rate of oxidation occurrences.


Plastic pumps are light in weight are best suited for occasional use. It is for those who experience water damage  in basement only once or twice a year. These pumps are highly cost-effective, and you can easily afford them. It is also resistant to corrosion. However, there is a drawback to it. Plastics are not very durable. Under severe weather conditions, they are very much likely to buckle or crack.

Stainless Steel

Stainless steel pumps are ideal for any type of situation. They don’t undergo any form of oxidation, and you can use them under extreme weather conditions. The material has a very high tensile strength. So, it is very sturdy and will not buckle easily. Therefore, you can use it for a very long time.

Pump Capacity

These pumps have different power capacities such as ¼ HP, 1/3 HP, ½ HP, ¾ HP, and 1 HP. An average pump can withdraw about 35 to 60 gallons of sump water every minute. The capacity of the device to draw water out of the sump depends on the height of the sump and the amount of water that needs to be removed. So, if your house often gets flooded, then you should get the model with the highest horsepower.

Technology (Wi-Fi)

This feature is mostly available in the advanced float switch models. As soon as the regular pump switches off and the backup pump switches itself on. It then automatically connects to your smartphone devices and sends you alerts about the current status of the sump.


During severe rainy seasons, most homeowners face power outages for a long time. In this situation, having a battery-powered backup sump pump comes in handy. Unlike the traditional pump that is run by AC power, these can last for many hours and drain the water. They can be charged by using deep cycle batteries.

However, if you happen to run out of power, you can also install solar panels or generators and continue using it. It is imperative to check the power enlisted on top of the package. Also, look into the duration of how long the battery will last.

Flow rate

When you are buying the pump, it is always best to get the one whose flow rate is equal to that of the primary pump. Having the same flow rate allows the battery backup pump to work at the same pace as the primary one, in case if the latter doesn’t work.

Another key point that you would have to bear in mind is the quantity of water that has to be removed. Usually, the pump withdraws water from a vertical height below ground level from the sump. This height can be between the ranges of 10 to 15 feet underground.

However, the flow rate readings that are mentioned on the package are taken from zero feet or at ground level. In this case, you can go for the one that is capable of removing 500 gallons every hour or more. Because as you are raising water from a height, the readings are supposed to be lower.


There are many types of deep cycle batteries that are available in stores.

  • Starter battery

A marine or a deep cycle battery such as the starter batteries are not the best for long term use. This is because they often tend to run out of charge quickly.

  • Solar battery

Many people install solar panels in their backyard. Doing this allows the batteries to charge in an optimal way. However, you can customize the setup of the panels in any manner that will work for you.

  • Absorbent Glass Mat Battery (AGM)

The gel or AGM ones are great for heavy-duty work because they require zero maintenance for months. They can produce DC currents and have a longer lifespan than any other type of batteries. A typical battery has about 75 amp-hours, which is sufficient to dry out your basement.

Float switch

The float switch is a vital part of the sump pump backup. It is a small device that monitors the water level in the sump. If there is a rise in the water level, it automatically switches the pump on, which starts projecting water out. It can also trigger the sensor that sets off the alarm.


Getting the right size of the pump is one of the important criteria that you should keep in mind before you consider buying one for yourself. The size of the pump depends on two main factors, the size of the sump and that of the conventional pump that you have already installed in the basement. If the size of the sump is small, then the size of the back-up pump should be small as well.

If you have a small basement, then adding an extra pump can consume a lot of space. The lack of insufficient space can be a cause of faulty wiring, which can lead to poor installation of the pump. As a result, pump malfunctions. In this case, you can opt for a unit that has both the main pump and the backup pumps in the same unit. This is convenient and can also save you a lot of space.


The performance of the pump is another key factor that you should consider. A typical pump has an average output of about 2100 to 3600 gallons per hour. These numbers depend on the model and the horsepower of the pump. So, when you are buying, opt for the one with output performance either above or around your requirement.


The primary function of the pump is to remove the excess water from your house. To keep the sump under control, it monitors the water level. It has come with a display panel, a sensor, and an indicator. When the water level exceeds the safety level, it sets off an alarm, thus alerting you about the situation. The audible alarm can also be programmed to warn you if the device is in need of any maintenance or any other corrective measures.

Is It Important to Use an Alarm on the Pump?

Having a pump that is equipped with an alarm can be beneficial for you in many ways. Once it detects any unusual activity in the current circumstances, it starts blaring off as a warning signal.

It also helps in:

  • Monitoring the water level in the sump
  • Alerting you if the battery is running low and needs to be charged
  • Detecting if there is any kind of malfunctioning issue with the pump
  • Indicating any form of leaks, big or small
  • Sending email or message notification to your smartphone via Wi-Fi

In some of the cases, the alarm is attached to the unit, while in others, they need to be installed separately. One of the disadvantages of the latter is that the installation process can seem a little confusing for a first-time user.

What Are the Benefits of Using A Sump Pump?

  • The first and foremost function of the sump pump is to drain the water that clogs your basement and prevent it from overflowing and destroying the interior of your house.
  • It saves you from spending a lot of money in repairing the damaged infrastructure of your house. Damp hardwood floors can eventually become the perfect breeding ground for pathogens that can go airborne and be the cause of respiratory problems.
  • It comes in handy during power outages. When the electricity shuts down, the backup pump automatically switches on and continues to remove the water.
  • The sensors that are attached to it are sensitive. The alarm sets off in an audible tone; thus, alerting you immediately if the water levels have risen beyond the limit.
  • In some of the latest models, they can send you notifications via messages and emails informing you about the current status of the pump on your smartphone device.
  • There is a range of pumps that are made out of a mixture of different materials, such as cast iron, plastic, and stainless steel. Each of these types is well-suited for a particular circumstance. The selection of this depends on the geographical location of your house and how susceptible it is to a downpour.

#Frequently Asked Questions

If I have a backup power source like a generator, would I need to install a battery-powered sump pump instead of a regular sump pump?

Regardless of having a regular pump or a high-end pump, having a generator, a backup power source is essential.

A generator can run for many hours and provide you with the optimal power to get the job done. All you need to do is to connect the generator to the pump via an extension cord.

How Long Does a Battery Backup Sump Pump Last?

The type of battery that you select for the pump plays a major role here. There are different kinds of batteries that you can buy, but if you opt for a cheap battery, then they won’t last for long. Also, cheap batteries can be unsafe; and they are susceptible to an explosion.

Can I Backup Any Sump Pump with a Battery?

Of course. Your pump should have a backup battery. This is especially needed when there are power outages for several hours. Also, you must always keep tabs on the battery’s charge.

How Can I Link Two Batteries Together?

The installation is very simple. You can connect both of the batteries either in series or in parallel. All you need to do is wire them together to the positive and negative terminals, respectively. One important fact that you need to bear in mind while installing is that for a pro-series connection, the net voltage will increase. And, if they are connected in parallel, then the voltage will decrease. Once the power gets cut off, the generator comes to the rescue and allows the pump to drain the water easily.

What are the General Causes of Sump Pump Failure?

There are many reasons for the breakdown of a sump pump. One of the main causes can be extensive usage or months of irregular maintenance.

Malfunctioning of the floating switch or using a pump that is either too big or small for the sump could also cause damage.

How long will the battery backup last when charged for a single time?

The longevity of the battery depends on two factors- the amps and the size of a battery. Typically, a 40-amp battery can remove 2000 gallons and last for two or more days.

However, the amount of time a battery can last also depends on the amount of water it is pushing out.

In which case will I need a combination sump pump?

In a combo pump, you have both the primary and the power sump-pump in a single unit. This is useful when you have excess water flooding your basement, and you need extra capacity to drain it.

How can I dispose of extra acid?

You need to be cautious while disposing of the extra acid. You can dilute it with a base along with water, or you can rely upon experts to help you out.

How long will this system run on battery?

The duration of the pump depends on the type of battery you are using and also on the amount of water that has to be withdrawn. A deep cycle battery and AGM last longer than any other type of battery.

Why Do You Need a Battery Backup for Your Sump Pump?

It is normally needed to exert water during power outages. Also, when it comes to natural disasters or heavy rainfalls, you need these high-quality sump pumps to do the work.

Final Words

It is quite evident that having a backup sump pump installed in your basement is very important, especially when you are preparing for the worst weather conditions. During a power failure, a battery-powered pump is all that stands between a waterlogged basement and a dry basement. We have provided you with some of the best backup sump pumps that are available at stores. They have a good performance rating, equipped with advanced technology, and are long-lasting. We hope this article was useful to you and helps you in choosing the perfect one. We wish you a clean and water-free basement.

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