Battery Backup For Existing Sump Pump

When the snow thaws, it is usually a welcoming sign for most homeowners but that is only if the process happens smoothly. The extra pressure of the snow and rain may put pressure on your sump pump. Moreover, the absence of power aggravates the situation as then you do not have an alternative to getting the job done.

A sump pump becomes one of the easy products that you may ignore. This is probably because if it keeps on doing its job perfectly, you would never worry about its condition. However, any kind of horrible weather conditions can cause a power outage. In that case, the pump would not work at all. As a result, you may face flooding situation especially if the thawing of snow has started at that point.

Thus, you must keep a battery back- up for your existing sump pump. Having one would ensure that even if the power is missing your pump functions as normal and any kind of untoward situation is avoided. Here we are giving you a detailed analysis of why battery back- up for an existing sump pump and why it is so crucial for your home.

Battery Backup Power For Sump Pump - Detailed Reviews, Features & Specs

1. AIMS Marine Battery For Sump Pump

This marine-coated and protected backup battery offers 300% surge capability and a 3750-watt surge for 20 seconds at a time. The remote panel is available in either LED or LCD lighting and it even comes with a multi-stage smart charger and 35A AC input cable for your convenience. At a weight that is less than 40 pounds, it is easy to move from one room to another. In addition to sump pumps, this battery can also be used for medical equipment, tools, and appliances up to 10 AC amps.

Because your sump pump is so important, you want to make sure that it never gives out on you and a high-quality battery can ensure that this never happens. Its 20-second surge is perfect for startups for items such as fans, computers, and refrigerators and it offers continuous clean power 24 hours a day.


  • Is easy to set up and operate.

  • Accommodates a variety of items and appliances.

  • Is very affordable.


  • It doesn’t work well in items such as boats or RVs.

  • The power cord is only four feet long.

  • The instruction manual doesn’t give a lot of details on installation.

     ★ Top Pick       

2. AIMS 24-Volt Power Generator For Sump Pump

One of the things that makes this charger so unique is the protection it offers, including protections for high or low voltage, overload, short circuit, and much more. With a powerful 6000-watt continuous capacity, it can jump start many devices because of its 20-second, 18,000-watt surge. Its many features include a charge current control dial, auto gen start, and a battery temp sensor, among others. You only need one set of cables to operate it and there is even an optional remote available.

In addition to sump pumps, you can use this charger for work trucks, RVs, and boats and it even comes with both off-grid and backup power. This is a reliable generator that you’ll be able to use for many years to come and it comes with a great warranty for your peace of mind. It also accommodates a variety of battery technologies, including lithium and seven others.


  • A smart battery charger with many different uses.

  • A low-frequency charger with pure sine clean power.

  • A reputable company that stands behind its products.


  • Some complaints about the weight being different than in the description.

  • Some complaints about it not working for very long.

  • Some complaints about poor customer service.

3. Renogy 12-Volt Battery Backup Power For Sump Pump

With both AC and DC inputs, the Renogy 12-volt charger is a four-stage charger with eight different preset battery voltages. It is compatible with numerous battery types including AGM, GEL, flooded lead acid, calcium, and sealed lead acid batteries. It includes a power saver mode for greater efficiency and lower operation costs and it has a maximum bypass current of 30A. It is also available in both 1000- and 3000-watt options.

This is also a multipurpose battery charger that can charge items such as computers, sump pumps, and much more. Its remote monitoring panel lets you get all of your data in a single source and it is built to last for many years to come. This is a high-quality, dependable battery charger that is easy to set up and even easier to use.


  • Multipurpose device that charges numerous items.

  • Nice bright display that is easy to read and convenient.

  • Ability to accommodate large items such as RVs and boats.


  • Some complaints about it breaking shortly after purchase.

  • Some complaints about insufficient instructions.

  • Some complaints about poor customer service.

     ★ Top Pick       

4. GIANDEL 5,000-Watt - Power Inverter For Sump Pump

This is a multipurpose charger that can accommodate everything from RVs to trucks, sump pumps, and solar systems. It comes with a remote control that is convenient and easy to use and it provides 5000 watts of continuous power and 10,000 watts peak power. Its features include four AC outlets, cable, and a 2.4A USB port, among others. It is also made out of durable aluminum alloy and comes complete with an instruction manual, four pairs of cables, an inverter, and a remote control.

You also get safety protections that include overload, short circuit, low or high voltage, overheat, and polarity reverse protection, to name a few. The auto-start function and soft-start technology is something that you’ll get used to rather quickly. Since it is only 22 pounds, you can easily move it from one area to another if you should need to do this. The 15-foot cable that comes with the charger means that it can be plugged in almost anywhere, making this a very convenient and versatile device to have.


  • Multiple protections that make it a very safe device to own.

  • Heavy-duty materials that last.

  • Ability to be used for numerous devices and appliances.


  • Some complaints about it not working very long.

  • Some complaints about the inverter not working properly.

  • Some complaints about it being too weak for proper use.

     ★ Top Pick       

5. GIANDEL 4,000-Watt UPS For Sump Pump

A 4000-watt inverter offering 8000 watts of peak power, this unit has many applications that include boats, RVs, sump pumps, and even power failure emergencies. Its many features include four AC outlets, full safety protections for short circuits and many others, and a convenient remote control that makes operating it much easier on your part. Its isolated input/output design and soft-start technology are just two features that make this a smart unit to buy.

The GIANDEL battery charger can accommodate items both inside and outdoors and its light weight of 24 pounds means that you can easily take it with you wherever you need to go. It also comes with a 15-foot power cord that makes it easy to hook it up anywhere in your home. The LED display means that the numbers are always clear and easy to read.


  • Is a multipurpose charger with numerous uses.

  • Comes complete with everything you need to start using it immediately.

  • Works with a variety of battery types.


  • Some complaints about it not working for very long.

  • Some complaints about slow customer service.

  • Some complaints about the LED numbers being inaccurate.

All Sump Pump Backup Options To Consider

Fortunately, there are different options available which you can use to keep your sump pump problem under control. There are two types of battery back -up systems available –DC and AC/DC. These battery back-up systems switch to DC power as soon as the AC power is cut off.

However when AC is on your pump functions as normal. Apart from that, you should also consider which kind of battery you would want to incorporate. You will find deep cycle maintenance free batteries as a great alternative. The batteries would need water at regular intervals that you must keep adding.

Sump Pump

Sump Pump Inverters Or UPS For Sump Pump

In certain situations, an Inverter or UPS may be used for back-up. The purpose of the inverter is threefold. First, it keeps the battery charged at all times so that any kind of exigency can be handled. Second, is being able to sense when the power is missing and quickly revert to the inverter setting. Lastly, it converts the power stored in your batteries from DC to AC and proceeds further.

Though inverter and UPS work in the same way using the latter is not sensible in such a condition. The battery in a UPS cannot work for so long and that is the biggest disadvantage it can have. UPS systems have small battery chargers and thus its processes are inhibited.

Apart from that, an inverter offers more flexibility in comparison to a UPS system. Being inexpensive and easy to assemble, the inverter can easily be expanded in the future if required.

3 Steps To Add A Battery Backup To An Existing Sump Pump Safely

It is fairly easy to set up your Battery Back -up Sump Pump  and you can do so in three easy steps.

1. Mounting the unit- You must mount the battery back-up at a wall-mount and a considerable distance from the AC outlet. The battery needs to be placed less than 4 feet from the pump. Make sure that the battery is encased in a strong battery box that would stand the impact of wear and tear.

2. Make the connections- After mounting, check if the main point is in off position. Connect that battery cables as mentioned in the manual. You must plug the pump into the AC outlet and then turn its power on.

Battery Backup Sump Pump

3. Test installation- Lastly, check whether the installation has been done correctly. Cycle the pump to see if it is operating as per the specifications. You should remove the power cord to see if the back -up has been connected correctly. Cycle the pump again to see if the unit has been connected and is using the backup power.


Q1. What Happens When Your Sump Pump Loses Power?

When there is no power, your sump pump would not function at all. That means there would be no pumping action happening and all the snow and rain would slowly start piling up. This means that once thawing happens, there could be flooding in your home and areas around it. If you are around to fix the situation then things are fine. However, if you are not at home you can expect chaos and a worse situation when you come back.

Q2. Can you count on your sump pump?

A sump pump’s basic purpose is to keep pumping the snow and rain away. In most situations, it keeps functioning as per the specifications. However, when power is not there, any sump pump can breakdown and stop doing the needful. To handle this situation, a battery back- up is generally advised.

Q3. What causes primary pumps to fail?

A sump pump can face many issues during operations. A water-powered sump pump may be subjected to clogging and that can be a dangerous possibility. Its discharge lines could also get jammed or frozen causing the pump to stop working properly. Apart from that, if your basement has already got full of water the sump pump would not be able to handle the pressure and cause things to fail.

Q4. Back-Up Options For Existing Sump Pump?

You can get a battery back- up for an existing sump pump. These are easily available at hardware stores. Apart from that, an inverter can also be a suitable option as it handles even the toughest of breakdowns with ease. Moreover, you can assemble it quickly and even increase its loading capacity if need be. UPS is mostly not suitable for such a condition as it is unable to handle the load requirement.


When it is snowing your sump pump keeps the situation under control. However, when a power outage happens the sump pump would not function and get a battery back- up then is the most obvious and sensible thing to do. Look around for the most suitable options that are available ensuring that it can handle the pressure of your house. Mostly a high capacity inverter back-up can take care of such issues, you just need to find which product is the best suited for you.

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