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 Back-Up Options

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.

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.

How To Add A Battery Backup To An Existing Sump Pump

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.

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.


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.

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.

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.

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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