How to Pick the Finest Sump Pump Battery Backup

If you have a sump pump in your home, then you know just how important it is. A good backup battery can ensure that your pump will continue to work in the event of a power outage. But with so many batteries available on the market, which one should you choose? This write-up will help you pick the best sump pump battery backup for your needs.

How Does A Battery Backup Sump Pump Work?

A sump pump battery backup works by providing a reliable power source for your sump pump so that it will continue to work even if the electricity goes out. Your current battery should go to an uninterruptible power supply (UPS), which stores extra energy to keep your devices running in case of emergencies. But this won’t help you when you require that power the most and don’t have time to wait for your UPS to kick into gear.

This is where a sump pump battery backup comes in handy.

What Are the Different Types of Battery Backup Sump Pump?

There are three main types of battery backup for sump pumps available on the market.

Sealed Lead Acid Sump Pumps

These are maintenance-free batteries that don’t require any extra care on your part. They’re designed to provide a steady stream of current even if the power goes out, and they sit idle for a while. This type is ideal for low-drain devices, like clocks and smoke detectors, but it doesn’t have as much power output or durability as lithium batteries.

Flooded Lead Acid Sump Pumps

These are your standard wet cell batteries filled with electrolytes because they’re designed for frequent charging and discharging. They’re capable of providing steady current over a long period, which makes them an ideal choice for higher-powered pumps or larger backup systems where you’ll need to rely on the pump for several hours without electricity.

Lithium Battery Backup Sump Pump

This is the best type currently available on the market today. It can supply high amounts of current quickly when needed most, making it perfect for devices that require a lot of power in a short period.

What to consider when shopping for a backup sump pump battery

Before you purchase a battery backup sump pump, look for these specifications:

Power Needs

When looking for a new battery backup, you need to choose one that can hold enough current to keep your pump running. To do this, check the kind of pump you have and how much electricity it uses. You can find the information on the label attached to your existing sump pump’s motor housing.


In the unfortunate event that something goes wrong with your battery backup sump pump, it’s always a good idea to have a warranty that covers everything you’ll need. Also, consider looking for a battery backup sump pump that comes with all the accessories and parts you’ll need to install it. This way, you won’t have to worry about buying them separately or hunting down compatible parts at the last minute before an emergency.

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