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Your sump pump is one of the most hardworking devices in the house. They work round the clock keeping our basements from flooding. But what happens when they fail to work?

When sump pumps fail to work either due to mechanical fault or power interruption, it can spell disaster. But not when you have a battery backup sump pump. In times where the weather is extreme, it’s relieving to know that your basement has an extra layer of protection thanks to your battery backup sump pump.

But with so many products out there, how do you know which one is perfect for you? Don’t worry, we give you our guide of the best battery backup sump pump plus a buying guide at the end. Read on to find out which is the best for you!

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Wayne Esp25 12 Volt Battery Backup

Wayne Esp25 12 Volt Battery Backup

Key Features: Epoxy steel body and cast-iron base; 3300 gallons/hr.; backup system activation alarm; easy-to-read LED display

The Wayne Esp25 is a great value making it the best backup sump pump. It can pump up to 3300 gallons of water per hour which is enough to deal with extreme weathers. What’s great about this product is it that if the water reaches a certain level, the backup pump activates. That means the backup will help the main pump even if it hasn’t failed.

The upgraded version features an epoxy steel body and cast-iron blade which is built to last. It also features an alarm system that lets you know when it is activated. The battery can last for up to 3 days making sure you’re protected even in the toughest of weathers.

Click here to see current pricing on Amazon.


Basement Watchdog BWE 1000 Battery Backup Sump Pump

Basement Watchdog BWE 1000 Battery Backup Sump Pump

Key Features: Pumps 1000 gallons/hour; Sensor-monitored fluid levels; User-friendly control panel lights; Compact size; Affordable

The cheapest one on our list, the Basement Watchdog isn’t cheap when it comes to pumping out water. At 10 feet, it promises to pump out 1000 gallons of water per hour and it doubles at 0 feet. The product is stainless-steel, and it is corrosion-proof which should last long.

Like the ESP25, it features an alarm system that alerts homeowners when it is activated. And since it has a compact size, it can fit almost anywhere even in tight spaces. With its low price and high performance, it promises to be the watchdog for your basement.

Click here to see current pricing on Amazon.


Superior Pump 92900 Battery Backup Sump Pump

Superior Pump 92900 Battery Backup Sump Pump

Key Features: Can pump up to 1380 gallons/hr.; Sturdy Thermoplastic housing; Tethered float switch; Low battery signal

The Superior Pump 92900 is powerful enough for its size and price. When it comes to sump pump battery backups, this lives up to its name. It packs high power that can pump out up to 1380 gallons of water per hour. And like the other battery backup sump pumps on our list, Superior Pump has an alarm system that notifies owners when it’s on. Not only that but when it is low on battery, it also signals owners.

The 92900 offers great built, compact design and affordable price, what more could your basement ask for?

Click here to see current pricing on Amazon.



When it comes to choosing the perfect sump pump battery backup, there is a lot to consider. There’s no one size fits all since every house varies from one another. That’s why we created this buying guide in order to give you an idea of what to look for.


When it comes to battery backup sump pumps, there is such thing as overkill and the opposite. If you have a big sump pump, it only makes sense to pick a backup that is equally as big. On the other hand, a small main pump and basement need not a big backup sump pump as that would be overkill.

It is best to measure your basement when buying your backup sump pump. Better yet, for small basements, you can opt to buy sump pumps that come with a battery backup sump pump.


Before buying your battery sump pump online or elsewhere, always make sure you are well-informed. Most pumps already have a battery included but some don’t. In cases where you don’t have time or more money to spare on buying batteries, it’s best to choose a product that already has a battery in it. But for those who have an extra battery at home, pay attention to the voltage requirements of the product you’re going to buy. The wrong battery type and voltage can lead to even more problems later than just a flooded basement.

Quality and Features

When choosing your extra layer of protection, make sure that it serves your needs well. There are products out there that are pricey, but quality tested. There are cheaper ones but at what cost?

It’s best to avoid cheap plastic-made backup sump pumps if you want your product to last long. Go for materials such as iron, metal and other sturdy materials that are heavy but ensures protection and longevity.

For the features, most models have a built-in float switch, an alarm system, and LED displays. But it’s important to know which features you need as more features equal to a higher price.



Houses with basements nowadays are required to have a sump pump. So, it’s always good to have a backup sump pump that can run when there are power outages. A battery-powered backup sump pump is the ideal extra layer of protection for emergencies such as hard rain and snow.

But even if you are living in warmer areas but still experience flooding regularly, it’s good knowing you don’t always have to rely on your main sump pump. Some backup sump pumps can activate automatically when the main can’t handle the load.

Have questions about choosing a battery-powered backup sump pump? Comment below and we’ll try to help!