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5 Best Battery Backups for Existing Sump Pumps in 2022

The most reliable backup sump pumps and inverters that provide total flood protection , even without power

Power outages can be quite stressful, however, if you depend on sump pumps for the protection of your home, they could turn into your greatest adversary. Happily, we have several options to make sure that our pumps function in these situations.

The easiest method of doing this is with batteries. You can set up an emergency sump pump with battery backup which runs directly from the batteries, or you can make use of an inverter which converts energy generated by the batteries to the power your main pump requires. This will give you additional security, without needing to add another pump to the pit.

In this post I'll discuss with you the most effective battery backup option for your existing sump pumps, both of which. I'll also answer some questions you may have regarding these pumps. Let's get started with the task at hand.

Wayne ESP25Zoeller Spin508PumpSentry 822PS
The best choice for most homes.Ideal for flooding with heavy forceThe best power inverter1680 gallons of water per hour at 10 feet2040 gallons per hour for 10 feetDepends on the pump you currently have.Has audible alarmHas audible alarmHas audible alarmEditor Rating: 4.7Editor Rating: 4.6Editor Rating: 4.7

What battery backup should you choose for your home

Before we begin we'll explain, just in case you're familiarwith DC power, it is what you get from a battery whereas AC is what you receive from the electrical outlet. There are two common configurations that can be used to add the battery backup option to your primary pump.

1. Pump for Battery Backup

This set-up only includes the sump pump 12V, ideal if you already have an existing sump pumps installed. It is necessary to install the second pump in the basin so be sure that there is enough space to accommodate this.

The backup pump's float switches is typically set a couple of inches above the point on the primary, which means it will run solely when the level of water is excessively high. Because you'll be operating it in the event that the main pump goes shut, you need to ensure it's got the same capacity as the primary. In the event that it doesn't, the water will eventually spill over.

There are combinations of sump pump systems which have primary and backup are assembled into a single unit. This is ideal in the event that your current pump is getting worn out and you wish to ensure that two pumps will fit into the basin as they are generally smaller.

2. Power inverter

The initial setup has some limitations. First, you must have sufficient space in the pit. In addition, you should engage a plumber, or carry out some work on your own. In addition, you must be able to get less then 2500 GPH water flowing in , as the majority of DC backup pumps aren't rated at the threshold of that.

Inverters that power up can solve all three issues by keeping the primary pump running even in power outages. When you are choosing an inverter it is crucial to select one that has the ability to switch on and off automatically, similar to the ones mentioned above to ensure they can operate on their own without having to venture to the basement each time.

The Best Battery Backup for Existing Sump Pumps

1. Wayne ESP25 Upgraded Battery Backup System

Best battery backup sump pumps for normal flooding

  • Pros
  • The perfect size for the majority of homes that can hold up to 1680 gallons of water discharged every minute at 10'
  • up to 10,000 gallons per charge
  • Durable cast iron base
  • Cons
  • The housing made of steel may be rusty within a few years

The Wayne ESP25 is the best battery backup sump pump that you can buy to protect your basement when the primary pump is out operating. It's strong and durable and exactly what you'd want from backup sump pumps.

The pump that you see here is an improved version of the older ESP25 which was thermoplastic construction. It now has an epoxy-coated steel housing as well as the bottom is cast iron for this added protection from elements.

It pumps a capacities of about 1680 gallons every minute at 10 feet. This is roughly the same amount as a standard Sump Pump 1/3HP. You can anticipate it to operate for 26 hours on one charge if you are able to handle 5 gallons of water entering your basement.

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It's got every bell and whistle that you require for a reliable backup sump pump. It comes with an audible alarm as well as an indicator of status. If you're experiencing water entering your home that's neither too heavy or too weak it's the perfect one.

2. Zoeller Aquanot Spin 508

The best backup sump pump to use for flooding heavy

  • Pros
  • Rapider discharge for flooding that is heavy up to 2100 gallons per hour at 10'
  • 11,900 gallons/charge
  • Check valve is included
  • Cons
  • A little bit of a power consumption

It's tough to discuss sump pumps and not including Zoeller being the largest and trusted brands in the field. Zoeller Aquanot 508 is a Zoeller Aquanot 508 is a tested and reliable 12 volt back-up sump pump. It can run at 2100 GPH at an altitude of 10 feet. It will run for up to 6 hours of continuous operation.

A controller is responsible for automatically charging as well as safety for the entire system. It also has self-testing feature that makes sure that the sump pump remains operating properly each day of the year.

Similar to the Wayne model, this one also has an indicator of low battery and alarm that alerts you when it's in need of assistance. It's slightly more expensive however it offers some more pumping power that can be the difference in your basement.

3. PumpSpy PS2000 WiFi Battery Backup Sump Pump

The best Sump pump battery backup options

  • Pros
  • A very strong discharge as much as 2,400gallons an hour at 10'
  • 13,000 gallons/charge
  • 24/7 remote monitoring
  • Very detailed reports
  • Cons
  • Expensive

Its PumpSpy PS2000 is an extremely powerful batteries backup pump that is able to be used to replace half-HP primary sump pumps whenever needed. It is able to pump 2400 gph in 10 feet, and be able to last at least 5.5 hours on one charge that is continuously running.

PumpSpy is well-known for its monitoring of the sump pump and it's no surprise that it's at the top of its game. It can be connected to WiFi and receive instant notifications on your phone to have peace of mind even when you take vacation.

It runs an annual test to ensure that everything is working properly so it can respond to any issues before flooding occurs. If your connection is down the server will automatically send you an email stating that they are unable to connect to your pump, which is usually the situation when there's an interruption in service.

It also tracks the daily cycle of pumping, the last cycle duration, estimated gallons of water pumped, and total cycles according to date, giving you a more complete understanding of the system. The downside is that it is priced at an additional cost compared to the two prior models. Do you think it's worth the gain in security? It's entirely up to you.

4. SEC America PumpSentry 822 PS

Best power inverter for sump pumps

  • Pros
  • It can run 1/3, 1/4 HP as well as most half-hp sump pumps.
  • Auto charging and power transfer
  • 15 minute installation
  • It doesn't take up pit space.
  • Cons
  • Pricey

If you're looking to back up your pump, but are unable to find a space to put it in your pit, take a an examination of power inverters.They let you use your primary pump in the event of a power failure.

This PumpSentry 822 PS is the most efficient one that you can buy for your typical sump pump.It's a dependable 1200W power inverter, with charger that is able to support up to 1/2 horsepower sump pumps.An ideal alternative for emergency power backup preferred by professionals and homeowners alike.

It features battery status indicators as well as an alarm for low batteries that you can hear in your kitchen.It's not cheap, however what it offers is assurance of safety even during storms.Only a high-quality product will provide.

5. PumpSpy Primary Sump Pump Backup Power System

The most value for money power inverter

  • Pros
  • Much less expensive than PumpSentry
  • 1500W is more powerful than 1200W of the 822PS.
  • Pure sine wave energy
  • Cons
  • Only 10A charge

If you're looking to install an inverter, but cannot afford the cost of PumpSentry it is recommended to look into this latest version from PumpSpy. It's much less expensive but it can provide power to bigger pumping units (up at 3/4 horsepower) using the pure sine wave energy. It means power supply is exactly as pure as the power is supplied by the outlet, making sure the pump operates smoothly and quietly. The only downside is the slower charging speed, however, if you're not expecting multiple power interruptions within your region, it isn't a major issue.

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Are you looking for more inverters for sump pumps? Check out our sump pump inverters review.

What happens if power outages can last for several days?

The sump pump's battery can last for only several hours or days at the most and you shouldn't count in it's ability to maintain your basement dry for the duration of. There are basically two ways to prepare for these situations:

Make an reserve battery is perhaps the most simple and least expensive way to prepare for a prolonged power interruption. You can store a battery or arrange it in parallel to the other.

Utilize an sump pumps generator in the event that your location is susceptible to blackouts lasting for several days, the best you can do is buy an generator. In this way, you will be able to continue to run your pump for until you've got fuel. You can even use it for your fridge as well as the AC.

What kind of battery are compatible for this?

The best type for sump pump usage is deep cycle marine batteries the most suitable one to make use of is an kind of battery called AGM which doesn't require maintenance. It is a good choice for the power demands of sump pumps.

An emergency battery sump pump generally needs at minimum a 75 amp hour battery to last at most five hours continuous operation for a typical pump. However, you should suggest using the higher 100 AH models to have longer running hours.

Buyer's Guide

1. Build Quality

The quality of the construction that is built into the battery backup pumps and inverter must be of the highest quality. Before we look at their capabilities and performance it is essential to ensure that it is an excellent build quality and no apparent design flaws. The pumps should be resistant to build-up and corrosion as well as sturdy enough to withstand impacts and erosion. For the inverter, it is important that they are strong enough to stand up to the water within the basement.

Each component must be constructed from materials that are suitable to their intended use. In addition to protecting the inside of the motor the motor's housing, the housing must additionally facilitate heat transfer, which will ensure that the motor stays constantly cool. The float switch on the pump must be able to withstand scratches and accumulation of dirt. The battery box has to be robust enough to protect the contents.

2. Performance

We need a strong backup sump pump that will prevent the supply of water from overflowing the pit. It should be able to transport nearly all the water of the main pump to provide the same level of protection in the event that the main pump is damaged. This is why you need to choose another backup pump that's similar in size to the primary pump.

Because the power of batteries can be limited by the battery, it has to also be efficient which means that it can keep running longer from a single battery charge. It is not a good idea for the battery's juice to go out before you're able to take action.

3. Features

An emergency battery sump pump requires to be equipped to handle a variety of scenarios. It's the reason it's typically equipped with additional tricks in its arsenal as compared to the primary.

Apart from the floating switch, it may contain alarms, sensors charging devices, as well as indicators that let you know the status that the device is in. Remote alarm systems that are more advanced pumps like that of the PumpSpy which can be of very helpful for people who have to leave frequently.

4. Ease of Installation

The installation is the last thing to consider. Plumbers and other experts (you may hire one from TaskRabbit) are able to do installation of backup sump pump systems in case you require help. Since a majority of us will install the pump ourselves and are not experts, having an inverter or pump which is simple to set up is a major benefit.

An additional battery sump pump can be able to fit in the basin alongside the existing pump. It may be necessary to change the placement of the primary pump as required.

However inverters are a lot easier to install and may be less expensive in charges for installation if you are required to engage a contractor. The only thing you have to do is place it to the ceiling or in an elevated location, and then connect the batteries as well as the outlet plug.

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