The Best Battery Backup For Existing Sump Pump -Reviews & Comparison

If you're looking for the best battery backup for existing sump pump on the market, you've come to the right place. After researching many different options, we compiled this list of the 10 best battery backup for existing sump pump. We assessed features, build, functionality, usability, and many more aspects to find the best options.

Knowing what to look for, which types to choose, and a host of other factors go into choosing among the best battery backup for existing sump pump. There’s good news, though: This guide will explain it all. If you're still here because you need a suitable option, we have a decent selection that should cater to every taste and budget, so read on to find which of the battery backup for existing sump pump will be the best choice for you.

The reasons why you should trust us

You can trust us because we are not just another review site. We are a team of tech enthusiasts and experts who have spent months researching the best products on the market. We factor this into our overall star rating for each product and our final verdict on whether or not we recommend it.

Our rating metrics include the following:

  • Functionality
  • Build material
  • Durability
  • Compatibility
  • Ease of use
  • Quality
  • Price-to-value ratio
  • Reliability
  • Brand
  • Safety
  • Customer reviews

Best battery backup for existing sump pump: Our 10 Choices

Comparison of 10 Best battery backup for existing sump pump
SaleBestseller No. 1
Zoeller 507-0005 Basement Sentry Battery Backup Pump
  • NOTE: Sump Pump and Battery are not included, as they must be purchased separately. Alarm Off - yellow light indicates the buzzer is currently silenced
  • All models have battery burn out and overcharge. Control device -Reliable low voltage float switch
  • Provides extra protection when the primary AC pump fails due to power outages, when the primary pump fails
  • All systems are fully solid state automatic controllers with alarms, light indicators and have warning systems
  • Model 507 has a self contained 10 amp battery recharger. Battery case made from noncorrosive polyethylene. Contains lock strap
Bestseller No. 2
THE BASEMENT WATCHDOG Combo Model CITE-33 1/3 HP Primary and Battery Backup Sump Pump System with 24 Hour a Day Monitoring Controller
  • Backup system capacity 1,000 GPH at 10 ft. lift and 2,000 GPH at 0 ft. lift
  • Includes emergency battery backup sump pump system with 24 hour a day monitoring controller
  • Provides days of intermittent pumping power on a single battery charge
  • Primary pump capacity 3,100 GPH at a 10 ft. lift and 3,720 GPH at 0 ft. lift
  • Pre-assembled system allowing for easy installation with little or no plumbing knowledge necessary
Bestseller No. 3
PumpSpy 1500W Primary Sump Pump Backup Power System, Safe Back Up System for Emergency and Power Outage, Superior Home Silent Sump Pump Backup Power Supply with Intelligent Cooling
  • STURDY CONSTRUCTION: We build our items to last. This sump pump's quality and reliability are always being improved. This item is assembled, tested, and packaged in Kalamazoo, Michigan, with both domestic and imported parts that are CE-certified for electrical safety compliance. It measures 20 x 8 x 3.25 inches and weighs 14.1 pounds.
  • CUTTING-EDGE TECHNOLOGY: The Primary Sump Pump Backup Power System provides overcharge prevention. Once fully charged, the battery is maintained with a "trickle charge" to ensure it remains fully powered and ready for use. This item also includes a smart cooling feature for enhanced safety and extended life expectancy.
  • MULTIPLE APPLICATIONS: The Primary Sump Pump Backup Power System also works as a power inverter for many applications requiring backup power. You can use it to operate various electric devices, including lights, mobile phones, monitors, and other equipment. The system comes complete for hassle-free installation.
  • EXCELLENT RELIABILITY: The Primary Sump Pump Backup Power System safely and effectively powers your sump pump during a power outage. When the AC power fails, it switches to battery power and instantly recharges when the power comes back on. For convenience, it has two grounded outlets.
  • HIGH PERFORMANCE: Never again worry about your basement during power outages! Our efficient backup unit generates a Pure Sine Wave 120 VAC voltage that is cleaner, quieter, and more stable. It has a 1500 Watt output and can power two primary sump pumps simultaneously with a combined current draw not exceeding 12.5 Amps.
Bestseller No. 4
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
  • EFFICIENT DESIGN - Comes preassembled and ready for drop-in for easy installation in 15 minutes or less with no need to drill a weep hole. Fits in 16” diameter or larger sump basins.
  • ALWAYS HAVE A PLAN - This 1/2 HP WAYNE basement sump system is perfect to keep your basement dry during heavy water flow, even if you lose electricity. Whether it’s rain, snow melting, etc. WAYNE model WSS30VN can keep your basement dry.
  • ADDITIONAL FEATURES - The system has been tested to 1 million cycles for long-lasting use. Comes with 8-foot SJTW power cord.
  • QUALITY YOU DESERVE - Proudly assembled in the USA for quality you can trust. Warrantied for 3 years for dependable, efficient, & ultra-quiet performance.
  • BACK-UP READY - WSS30VN will pump up to 5,100 GPH and remove/evacuate/expel/get rid of up to 10,000 gallons on a single battery backup charge. WAYNE WSB1275 75 AH Battery is required for back-up but not included.
Bestseller No. 5
Basement Sentry Automatic Emergency Backup Sump Pump System (12V Battery Powered) Provides Additional Protection Against Basement Flooding When Power Goes Out
  • Works with a deep-cycle battery but Basement Sentry brand batteries recommended (sold separately - See Basement Century STB75B Battery).
  • Installs in sump basins along with a primary, 115V sump pump
  • Includes 12V pump, controller, alarm system, battery charger, float switch and battery box (primary sump pump not included - see Combo)
  • Basement Sentry Backup System Model STBB100
  • Provides additional protection against basement flooding when the power goes out
Bestseller No. 6
THE BASEMENT WATCHDOG Model BWSP 2,600 GPH at 0 ft. and 1,850 GPH at 10 ft. Special CONNECT Battery Backup Sump Pump System with WiFi Capable 24 Hour a Day Monitoring Controller
  • Includes controller, charger, dual float switch, pump and battery box (battery sold separately)
  • User-friendly control panel lights up with a warning and describes what to do for easy maintenance
  • A sensor monitors battery fluid levels for increased piece of mind
  • Compact pump can be installed even in small or narrow sump pits
  • Pumps 2,500 GPH at 0 ft. of lift and 1,730 GPH at 10 ft. of lift
Bestseller No. 7
Basement Watchdog BWE 1000 Gallons Per Hour Basement Watchdog Emergency Back-Up Sump Pump
  • User-friendly control panel monitors pump, power and battery conditions 24 hours a day and provides visual and audible alarms to describe what to do for easy maintenance
  • Compact pump can be installed even in small or narrow sump pits
  • Automatic 0.4 Amp charger
  • Provides days of intermittent pumping power on a single battery charge
  • Pumps 2,000 GPH at 0 ft. of lift and 1,000 GPH at 10 ft. of lift
SaleBestseller No. 8
THE BASEMENT WATCHDOG Model BW-27AGM Maintenance Free (AGM) Sump Pump Battery
  • Up to 80-hour protection (based on a 10% duty cycle) on the Basement Watchdog Emergency (BWE) and Basement Watchdog Combination sump pump system (DFK961)
  • Up to 40-hour protection (based on a 10% duty cycle) on the Basement Watchdog Big Dog (BWD12-120C+)
  • Maintenance free - no need to add battery fluid or distilled water
  • Up to 48-hour protection (based on a 10% duty cycle) on the Basement Watchdog Special + (BWSP+) and Basement Watchdog Big Combination sump pump system (BW4000)
  • Runs various Basement Watchdog sump pump systems intermittently for days
Bestseller No. 9
Zoeller M53 Mighty-mate Submersible Sump Pump, 1/3 Hp
  • Professional-grade, 3/10 HP submersible pump for residential dewatering (sump) or effluent (septic tank systems) use.
SaleBestseller No. 10
THE BASEMENT WATCHDOG Model 24EP6 Emergency Sump Pump Battery
  • 1 year warranty
  • Compatible with the Basement Watchdog Emergency (BWE) battery backup sump pump system or Basement Watchdog Combination primary and battery backup sump pump system (DFK961)
  • Shipped dry to remain fresh until activated
  • Pumps intermittently for days on the Basement Watchdog Emergency (BWE) or Combination (DFK961) system
  • Can be easily and safely filled with a 6 qt. battery fluid pack (sold separately Model # Z-PACK)

Buying battery backup for existing sump pump: Things to Consider

When looking for a new battery backup for existing sump pump, knowing which one will suit you best can be difficult. But if you consider a few things before making your purchase, it's much easier to narrow down your choices and make an informed decision about what's right for you.

There are many things to consider before you buy a battery backup for existing sump pump. You want to make sure that it's going to work for your needs, that it's affordable and that it's something you can use with ease.

 

Here are some things to keep in mind before buying a new product:

  1. What is the purpose? This may seem like an obvious question, but people often forget about it as they get caught up in the excitement of a new battery backup for existing sump pump. If you're looking for an item that will best suit your needs, then don't buy a product that does nothing but entertain you.
  2. What are other people saying about it? It's always best to check out reviews online before making any purchases so that you know what other people think about battery backup for existing sump pump and whether or not they would recommend them. This can help give you an idea if something is worth buying or not before you spend money on a product that won't work out for you at all!
  3. Is it something I'm going to use often? If there's any question about whether or not you'll use something often enough for it to be worth buying, then wait until later when you're sure how much time, effort, and money.

The following are some more things in detail you should consider before you buy:

Features

The first thing to look at is the features of the battery backup for existing sump pump. You should check out if it has all the features that you need. It is not worth the money if it doesn't have any needed features. So check out all these features before buying battery backup for existing sump pump.

Features can be divided into two categories: core features and secondary features. Core features are the main characteristics of a product, whereas secondary features are additional or extra characteristics that make a product better than others.

Quality

Quality refers to how well-made the battery backup for existing sump pump is and how long it will last before breaking down or malfunctioning. To determine this, check out online reviews by other users who have bought the same item as yours and see whether they're satisfied with their purchase or not. If there are many negative reviews about a battery backup for existing sump pump or brand, then stay away from them because they're probably not worth buying at all!

Cost

Before buying it, you should always consider how much money you will spend on your new best battery backup for existing sump pump. In addition to this, you should also consider what features the product has and whether they will be beneficial for both you and your pet or not. Sometimes, many battery backup for existing sump pump may look similar, but they may vary greatly in terms of cost and quality, so choose wisely when buying something new!

The material used to build it

You should also be aware of what materials are used in the production of the battery backup for existing sump pump, as this will help you to determine whether it’s durable or not. The material used to make the battery backup for existing sump pump can tell you a lot about its quality and durability. This is particularly important if you’re planning on using the battery backup for existing sump pump for a long period or if it will be used frequently. If you’re looking for something that lasts, then you need to consider the material it’s made from.

Brand

It is also a good idea to check out the brand of the battery backup for existing sump pump before making a purchase. Different brands have different quality standards depending on their manufacturing process and overall quality control measures. Best to choose from, brands with good reputations for quality products and excellent customer service.

Warranty and return policy

When buying battery backup for existing sump pump, ensure you know what kind of warranty or return policy the manufacturer or seller offers. A good warranty will give you peace of mind that if something goes wrong with your purchase, you can get it fixed or replaced without any fuss or hassle. Look for companies with solid customer service who will work with you if there are any problems with your purchase to resolve them as quickly as possible without making things difficult for you. Look for companies that offer a return policy so that if you are unsatisfied with the product, you can send it back and get your money back.

 

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