Ten Best Batteries For The Backup Sump Pump in 2022 – BatteryHunters

Sump pumps that run on batteries must perform reliably in an emergency, so saving money on these pumps or their batteries could be very costly. The backup sump pump battery must be powerful enough to run the motor and store enough energy to provide the entire unit with as much power as possible until the mains are restored. A sump pump is a necessity if your basement is prone to flooding or if it’s below the normal water table.

Flooded basements can be heartbreaking. Water removal entails not only inconvenience and loss but also costs money and takes time. Because sump pumps function at their best during storms, this is also their ultimate weakness because the power is more likely to go out when a storm strikes. If your sump pump fails, the water in your basement will start rising immediately. Your home can suffer catastrophic damage from this. If you want to avoid the mess, you might want to consider getting a backup sump pump. Sump pumps are your last line of defence against rising waters.

A backup sump pump may operate if there is a lot of rain, and the main sump pump cannot handle all of the water. A backup sump pump is generally installed at least six inches above the main sump pump. The main sump pump uses 110 volts of electricity (plugged into a basement outlet), but the battery backup pumps use 12 volts since they use battery current.

Our Recommendations:

• Wayne ESP25 Upgraded 12-Volt Battery Backup System: Top pick for the backup sump pump
• Superior Pump 92900 12V Battery Back-Up Sump Pump: Submersible sump pump with tethered switch
• Zoeller 508-0005 Aquanaut 508 Battery Back-Up System: Best 12-V, noncorrosive sump pump
• Pump Sentry 822 PS- Emergency Power for Sump Pumps: 1200 Watt battery backup system
• PumpSpy PS2000 WiFi Battery Backup Sump Pump: Best pump for internet monitoring and alerts

A Comparison Chart Of Top Ten Batteries For The Backup Sump Pump:

 

1. Wayne ESP25 Upgraded 12-Volt Battery Backup System:

Wayne’s battery backup sump pump is the most popular backup system. This pump is made with epoxy-coated steel and cast iron, ensuring that it lasts for the long haul while pumping 2700 gallons per hour (GPH) at 0 feet of head. With a capacity of 2700 GPH, the pump should be able to handle most flooding situations.  As for how quiet it is, it runs on a 12-volt battery backup system with a Smart Charging system that charges the battery optimally.

The backup system will sound an alarm when activated, and an LED display will inform you when it is ready. An optional 75-amp hour (Ah) battery is needed for this pump. The battery backup will provide pumping power for hours afterwards.

Despite the smarter charger, this pump overcharges the battery. Wayne has a fixed voltage charger that doesn’t reduce to lower voltage. But it doesn’t matter because the backup sump pump is energy-efficient, sturdy and powerful.

At 10-feet of lift, the ESP25 can reach 1680 gallons per minute, while at 0 feet, the rate is 2700. Thousands of gallons of water can be pumped at a time with this backup pump. In addition to a 2-year warranty, Wayne has provided a high-quality pump that should last for years.

Product details:

Specifications:

Brand	Wayne
Color	Black
Material	Cast iron
Style	ESP25 battery backup system (upgraded version)
Item dimension LxWxH	17 x 10.5 x 14 inches
Power source	Battery Powered
Item weight	13.5 Pounds

 

2. Superior Pump 92900 12V Battery Back-Up:

Even though Superior pumps are very cheap, they deliver quite good quality. A thermoplastic casing protects the sump pump from rusting, which is a common problem. With this submersible pump, water can be lifted 25 inches vertically and moved at 1,380 GPH. Since it’s corrosion-resistant and made from thermoplastic, the Superior Pump can last for a long time, and it includes a one-year warranty.

The pump only weighs 12 pounds and is known for its small and lightweight design. Despite its compact size and lightweight, it can move a significant amount of water. AGM (absorbent glass mat) marine batteries fit in the box, and the control panel has an 87dB alarm when the power fails. Stainless steel mounting clamps come with this pump so that you can mount the float switch to the discharge pipe.

Upon resuming power, the alarm remains active. Every time you use it, you will have to reset it manually. Many users have had great experiences with this battery-powered sump pump system, but quite a few have had faulty units that don’t last very long.

Based on its features and price, Superior Pump was clearly the most economical battery backup sump pump.

Product details:

Specifications:

Brand	Superior pump
Material	Thermoplastic
Style	Tethered switch
Item dimension LxWxH	13 x 10 x 16.5 inches
Power source	AC
Item weight	12.5 Pounds

 

3. Zoeller 508-0005 Aquanaut 508 Battery Back-Up System:

With this backup pump, Zoeller extends their quality reputation for making some of the best pumps on the market! Among the battery backup sump pumps, the Zoeller Aquanot 508 is second to Wayne. An alarm and a light system are built into the pump, so you know when it’s running. Although this system requires more work than the Wayne system, if you follow the instructions carefully you should not encounter any problems.

Check the condition of all the components of your unit upon receiving it since there have been reports of poor packaging. The fit has some degree of tightness due to the short power cords, but it is feasible. The system is on the higher end in terms of price, but not that much like others. This pump is worth its price because of its high quality.

There is an issue with the LCD screen wearing out over time and getting dim over time, but the indicators that tell if the system is working seem to last for some time, so I don’t see the issue being too serious.

As a whole, this pump is highly rated by users, and the brand is known for its high-quality pumps. The battery is not included; you must purchase a deep cycle battery with a minimum capacity of 100 amps.

Product details:

Specifications:

Brand	Zoeller
Material	Aluminum
Item dimension LxWxH	8.5 x 8.5 x 10.5 inches
Power source	Corded electric
Item weight	16.3 Pounds
Maximum flow rate	40 Gallons per minute

 

4. Pump Sentry 822 PS- Emergency Power for Sump Pumps:

Power inverters are a great option if you don’t have the space to install an extra pump. You can run your primary pump even when there is no power. It is the best sump pump to get when you’re looking for an average sump pump.

The 1200 W power inverter features a charger, which is strong enough to support up to 1/2 HP sump pumps. Professionals and homeowners alike choose this emergency backup power system. A low battery alarm can be heard from your kitchen, and a battery status indicator is also included. Although it is not a cheap product, it gives you peace of mind even when huge storms strike. There is no substitute for top-quality products.

One of the negative aspects of this pump is that it is expensive and does not provide good support. The battery has to be replaced after a while since it gets too hot for the battery to run efficiently.

The pump comes with a two-year warranty. So, there is no problem with replacing the battery if it needs to be done. Pump sentry comes up with battery cables included with the pump and rugged aluminium compact size.

Product details:

Specifications:

Item weight	17.31 Pounds
Manufacturer	SEC America
Size	Single pack
Horsepower	0.33 hp

 

5. PumpSpy PS2000 WiFi Battery Backup Sump Pump System:

PumpSpy battery backup sump pumps offer advanced emergency sump pump functionality. It plugs into your main sump pump and connects to WiFi, so you get alerts on your phone. PumpSpy also performs systems testing about three times a week. A 10′ lift will allow it to handle 2400-GPH. There are two pumps, a primary 120-volt sump pump and a backup pump that comes on automatically if there’s a power outage or something goes wrong with the primary sump pump.

A technological improvement in sump pumps has resulted from the advancements in technology. PumpSpy checks the pump and battery for issues then alert the user. If everything is fine, you can check via the PumpSpy app, so WiFi will be needed to install it.

The only downside is that the pump provides awful customer service with high costs. A test system was also included with PumpSpy, which analyzes your system three times a week to make sure it’s in proper working order. High water levels, power outages, and blocked discharge lines are among the alerts.

One battery charge is capable of filling up 13,000 gallons and perform 2,000 cycles. A great feature of the PumpSpy battery is its ability to drain a 20-gallon basin in 30 seconds with a flow rate of 3,000 GPH.

Product details:

Specifications:

Brand	PumpSpy
Color	Black
Material	Plastic
Item dimension LxWxH	16 x 17 x 11 inches
Power source	Ac/Dc
Maximum flow rate	60 Gallons Per Minute
Maximum lifting height	22 Feet

 

6. The Basement Watchdog Model BWE 2’000 GPH Backup Sump Pump:

Basement Watchdog BWE systems come with a pump, charger, controller, switch, and battery box. The battery is not included in it. Once the main pump stops or when power is cut, the BWE will start pumping. Pumps for the Basement Watchdog system have two redundant floats on each switch. Whenever one float fails to work, the second one takes over. This will double the protection for added reliability. An easily rechargeable battery allows you to pump continually for days at a time.

The device will also sound an audible alarm when it is turned on and illuminate an LED to alert you to take the corrective action. Battery backup sump pumps are rated at 1,000 gallons per hour at 10′ and 2,000 gallons per hour at 0′. The Basement Watchdog sump pump works both with wet cells and maintenance-free AGM batteries.

The problem with this sump pump is that it does not contain a battery within the package. A proprietary battery is required for this battery backup sump pump and has a shorter life expectancy. It means that you will need to purchase a second, overpriced battery if you want to be safe during a major event.

A sensor measures battery fluid level. The controller will sound a warning when water is needed. This fluid sensor is only compatible with Basement Watchdog batteries and not with other brands.

Product details:

Specifications:

Brand	THE BASEMENT WATCHDOG
Colour	Black
Material	Thermoplastic
Item dimension LxWxH	4.5 x 8.5 x 6.5 inches
Power source	Battery Powered
Item weight	4.1 Kilograms

 

7. Zoeller 508-0006 Aquanaut 508 ProPak53:

For your sump pit, this Zoeller battery backup sump pump comes equipped with everything you need. This box includes a main cast-iron sump pump, a backup sump pump, a charger, a controller, and a battery box. This is a complete system equipped with 1-1/2″ PVC piping that can be dropped in your pit and connected to a battery after installation.

In addition to an alarm system and an indicator LED, Zoeller’s controller has a warning system. The pump comes with 115-volt power and provides extra protection in the event of power outages. When the power goes out, the charger and battery will still work. It has been designed with a check valve for the DC pump discharge, one for the AC pump discharge, and a float switch and piping.

Its only drawback is that it’s quite costly. Although the product comes with many features, it isn’t cheap. A battery case is included as protection, and the charger works well, but the 12-volt battery will need to be purchased separately.

The backup system comes with an alarm indicating when it is active and an indicator light. With this wireless security alarm, you can monitor the battery voltage on the LED screen and even attach dry contacts.

Product details:

Specifications:

Brand	Zoeller
Color	Green
Item dimension	8.5 x 8.5 x 10.5 inches
Power source	Corded electric
Item weight	17 Pounds
Maximum flow rate	43 Gallons Per Minute

 

8. Basement Watchdog Model BWSP 2,600 GPH at 0 ft:

Basement Watchdog Special CONNECT controllers monitor the power, battery and pump conditions of your sump pump 24 hours a day, ensuring it is ready to react when needed. The controller, which displays data on a 24-hour basis, detects problems, sounds an alarm, and provides solutions on the front panel. A micro reed dual float switch is included with the Basement Watchdog Special Connect battery backup sump pump. This most popular backup sump pump, our Basement Watchdog battery, pumps 2600 GPH at 0′.

If you have The Basement Watchdog Special CONNECT battery backup sump pump guarding your basement, you will be at ease. During power outages or when your sump pump fails, the backup battery will replace it to ensure your basement stays dry.

The only drawback of this sump pump is that this model does not work with any other battery type, but it doesn’t mean a lot. It would be best if you had to choose a basement watchdog specific battery.

For over 30 years, Basement Watchdog has been protecting homes and has continued to lead the market. Watchdog builds the most dependable, user-friendly pumps in the industry using quality manufacturing practices that include thoroughly testing every unit. It is compatible with both maintenance-free and wet-cell batteries, and it is equipped with an automatic, multi-stage, 1.6 amp charger to keep it fully charged.

Product details:

Specifications:

Brand	THE BASEMENT WATCHDOG
Item dimension	5 x 9 x 7.63 inches
Power source	Corded electric
Item weight	5.4 Kilograms

 

9. Raybend Primary Sump Pump Backup Power System:

Raybend’s new release is a good choice for those unwilling to pay the price of the pump Sentry. With pure sine wave power, it can power up large pumps at a much lower cost. The power supply must be as clean as the power you receive from the outlet, ensuring your pump runs smoothly and quietly. A power outage will automatically switch the pump over to battery power. It is recommended to use a 75 Ah AGM deep cycle battery.

A Raybend generator delivers a pure sinusoidal voltage of 120 VAC to power your main sump pump reliably. When AC power is restored, a powerful 10 Amp built-in charger automatically recharges the battery.

As long as there aren’t back to back power interruptions in your area, the only disadvantage should be the lack of battery.  Furthermore, it does not provide any customer support, but it’s not a big deal.

An output of 1500 watts is enough for two primary sump pumps to run simultaneously using a maximum of 12.5 amps collectively. With this sump pump, you’ll get a fully tested, electrically grounded system that conforms to CE safety standards.

Product details:

Specifications:

Manufacturer	Raybend
Item weight	16.17 pounds
Size	1500 Watts
Item dimensions	25.1 x 11.6 x 6.6 inches
Power source	Battery powered

 

10. The Basement Watchdog Model BW4000 1/2 HP:

The Basement Watchdog pump combines a sump pump, and a 1/2 HP cast iron and aluminium primary pump. A controller, charger, and two dual micro reed float switches are included in the package. Furthermore, this pump has primary, and backup pumps integrated into a single unit. It provides a user’s manual, so the battery and acid have to be bought separately.

Pumps like this are designed to be easily installed because they are preassembled. It can communicate with the Basement Watchdog  WiFi Module (BW-Wifi), remote notification devices, or home security systems. Backup features provide unique monitoring for diagnosing and alerting problems with this pump.

Few people have reported this pump because it has no warranty. The warranty is an important consideration when buying this type of product. It won’t be possible to make people feel sure about the product’s quality otherwise.

A compact design of this pump fits into pits as small as 12 inches in diameter. When the AC pump fails to handle the water flow or if it is too much to handle, a backup pump is automatically started.

Product details:

Specifications:

Brand	THE BASEMENT WATCHDOG
Material	Aluminum, Cast iron
Item dimension	8.75 x 11 x 18 inches
Power source	Corded electric
Item weight	11.8 Kilograms

 

Frequently asked questions(FAQs):

How long does a backup sump pump battery last?

In general, when the power goes out, the typical new battery can pump continuously for 5-7 hours or intermittently for 1-3 days, depending on how frequently it is used. As the pump runs longer, its power decreases. The sump pit floods when the battery power decreases and the pump is completely exhausted, resulting in your basement flooding.

Is a battery backup sump pump worth it?

Sump pumps with battery backup are available to save countless houses due to flooding and water damage. In cases of high flood risk, a backup sump pump is essential. You’ll have peace of mind, and your homeowner’s insurance may even be cheaper because of it.

What size backup sump pump do I need?

An average-sized home in an area with a normal water table will benefit from an annual irrigation system with a 1/3 horsepower sump pump that should suffice. Generally, 1/3 HP pumps can handle vertical lifts between 7′ to 10′ of water from the sump pit as long as the pipe run is between 3′ and 25′ long.

Can a sump pump be too powerful?

An insufficient or too powerful pump is something you should avoid. It won’t be possible to fill the basin if the pump is too small. Pumps that are too powerful will short cycle. This means the pump will start and frequently stop, resulting in premature failure.

Buying guide:

There are many factors to think about before buying a sump pump. Here are a few factors to consider when choosing a sump pump,

The capacity of the pump:

A solid metal sump and an AGM battery are all that you need ultimately. Moreover, you must get the correct size pump! You need to make sure your backup system can pump a comparable amount of water as the essential system if it is pouring outside as if there is no tomorrow and the power goes out. Make sure that the reinforcement siphon you purchase meets or exceeds this figure.

Type of battery:

Deep-cycle marine batteries and AGM batteries are the most common types of batteries available. Batteries of this nature can, in general, be found in the engine of more experienced vehicles. They require constant monitoring of the water. Batteries containing AGM technology are the latest development and do not require any water.

Construction quality:

An inverter and backup sump pump with battery backup need to be built well. Our first consideration should be whether or not it has a sturdy build quality without obvious design flaws. A pump must be resistant to corrosion and build-up while also strong enough to withstand impacts and erosion. For the inverter, its moisture resistance should be adequate.

Specifications:

For all eventualities, a battery backup sump pump must be fully equipped. In addition to the float switch, the system could include sensors, indicators, alarms, chargers, and alarms that give you an indication of how the system is doing. Pumps with much more sophisticated alert systems can also be monitored remotely.

Conclusion:

You need a battery backup sump pump to keep your home from flooding when the power goes out. Although they are a good solution, they do not come without some drawbacks. Keep batteries maintained and monitored to ensure maximum performance. After that, we tried to find a product that would satisfy both our needs and our budget. Keeping your battery charged ensures your backup system will work as long as there is power, so it’s not the end-all solution. The backup pump, however, costs much less to install than a water-powered backup pump.

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