8 Best Battery For Backup Sump Pump – Updated Reviews In 2023

Batteries are the lifeblood of any backup sump pump system. Without one, you’re left vulnerable to an unwelcome watery mess in your basement.

As it’s much too challenging to find the best battery for a backup sump pump without doing a little research first. We recommend you take this opportunity to explore some of the top contenders available on the market today.

When it comes to taking care of your home, we recommend installing a backup sump pump rather than leaving water to run through your basement.

The best backup sump pump will help remove any unwanted water from the basement without depressurizing it. This is especially important if you’re pumping out water from your basement during heavy rain and snowfall.

The battery of your backup sump pump is going to run out after a while. A battery failure for a sump pump is a common issue and one that people have been trying to solve for years.

The best way to solve this problem is by using a good quality rechargeable battery. Simply put, a quality rechargeable battery will provide you with more power without draining your bank account or your patience.

Our Top Picks

Universal Power Group 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery: Amazon Choice Product

Optima OPT 8016-103 Batteries D34M BlueTop Starting and Deep Cycle Marine Battery: A trusted brand with quality assurance

Mighty Max Battery 12V 100AH Battery: Budget-Friendly Product

Top 8 Best Battery For Backup Sump Pump

1. Universal Power Group 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery

This is a 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery 12V 24V 48V.

The battery has applications such as Electrical Power Production, Renewable Energy, Emergency Power Supply, Communication Systems, Automotive Electrical System Backup.

Universal  battery is a sealed, maintenance-free, rechargeable and valve-regulated lead-acid battery. The battery gives superior deep discharge recovery capabilities.

The battery is constructed with Absorbed Glass Mat (AGM) Technology which provides extreme resistance to flame and explosive gas. It is the preferred method for energy storage for Internal Combustion Engines (ICE).

This AGM battery can be charged or discharged at any time without developing memory effects. It can be charged and discharged more than 1200 times at 80% depth of discharge.

The battery is manufactured using state-of-the-art manufacturing technology. IT makes it one of the best batteries for backup sump pumps. It is extensively tested to ensure the highest quality.

This 12V 100Ah SLA Deep Cycle Battery is UL recognized with UN Recognized Component Typing System (CTS). It conforms to IEC, UL, CSA Standards and is designed for installation in the global market.

2. Optima OPT 8016-103 Batteries D34M BlueTop Starting and Deep Cycle Marine Battery

The Optima D34M BlueTop Starting and Deep Cycle Marine Battery is a battery for boats, power backups, sump pumps and many other applications.

This is a Marine Battery that has been designed to work in saltwater environments. It is available in a variety of sizes and shapes to meet most requirements.

The model we reviewed is the OPT 8016-103, which is a 96V battery. It is available in either a 10Ah, 11Ah or 12Ah model (a 21Ah 35Ah and 50Ah battery).  

The OPT8016-103 is a one-piece liquid-cooled unit, which means nothing under the liquid to corrode and nothing to leak.

The liquid seeps into the cells and emits vapours, but this is completely contained within the battery itself and is safely vented into the atmosphere (see below).

The Optima D34M Battery shows you how important it is to look at reviews of marine batteries before you commit yourself to buying one.

This battery comes with an angle bracket that can stably mount this battery into a boat or RV’s engine room. The Life of this Optima OPT 8016-103 Batteries is 50 Amps hours, which means it can last 8 hours straight at its rated current without being recharged.

3. Mighty Max Battery 12V 100AH Battery

Solar Wind is a popular battery brand for powering your off-grid solar system. Still, it is not restricted to only one application. It is a perfect battery for a backup sump pump also.

Mighty Max battery is a US-made product that is designed to be used with different applications.

The battery is uniquely designed to provide power for vehicles, RVs, boats, RV, backup power systems and solar off-grid systems.

It has the added advantage of being able to support deep cycle applications.

This specific battery can deliver up to 100 amp-hours of electricity, enabling it to supply power for a long time than other products in the market.

The battery is a sealed type which means you can keep it outside without any maintenance for a long period. The battery does not need watering, and its design of having no liquid electrolyte makes it maintenance-free.

 It has been constructed from glass mat material, a more superior quality of lead glass that is more durable and longer-lasting than other products in the market. This means that you can use the product for a longer time without replacing it frequently.

4. Renogy 12V 100AH Deep Cycle Hybrid Gel Battery

Well, you are here cause you need the best battery for the backup sump pump.

But if you also want the benefits of deep cycle, check out this amazing battery from Renogy! With an impressive 1 year warranty and over 750 cycles, you should invest in this one.

The Renogy 12V 100AH Hybrid Gel Battery has just about every feature that might be desirable in a battery for your next solar electric installation. The most important of those features, of course, is the 100 amp-hour capacity.

Sill, this battery also has many other desirable features that you will want to look into them. As you begin to think about adding a battery to your next backup sump pump.

The thing you will notice is that it looks completely different from any other battery that you see on the market today. It is shaped differently, including its boxy appearance and overall design.

Some people hate this look, but it is one of its best features. This battery is quite heavy, which is a good thing in many ways, but it also has a negative effect.

It has a very large surface area to the battery that allows for efficient power transfer to your solar charger. On that note, you have to have a solar charger that is powerful enough to charge this battery fully.

5. VMAX MR127 12 Volt 100Ah AGM Deep Cycle Maintenance-Free Battery

The VMAX MR127 Battery is an advanced AGM battery designed for heavy-duty applications requiring high discharge currents.

These batteries are ideal for use with large inverters, electric vehicles, solar installations, RV’s.

Moreover, they are the best option for boats with trolling motors and sump pumps that require more power.

It can provide more than a lead-acid battery, and it is perfect for other applications requiring high power output.

A true deep cycle AGM battery will be designed to work in these higher current applications with minimal loss of capacity or cycle life due to under-charging.

The VMAX MR127 is a 100 amp-hour battery that will perform better in extreme weather conditions than conventional batteries.

With the same dimensions as a group 31 lead-acid battery, you can use it in most applications requiring a group 31 lead-acid type battery.

This battery is manufactured using the latest high-speed automated manufacturing technology to produce high-quality batteries with consistent quality control.

 The cell construction and active material chemistry ensure long-lasting performance.

The VMAX MR127 AGM battery is an environmentally friendly lead-acid battery that has been designed to provide years of dependable power.

With exceptional performance in severe weather conditions, difficult climates and extended periods of no sun.

6. XS Power XP3000 XP Series 12V 3,000 Amp AGM Supplemental Battery

XS Power is a well-known brand in the automotive and power sports industry for its commitment to high performance and innovative battery solutions.

The XP3000 is an example of their efforts to provide consumers with a more affordable option that still provides a reliable power source when they need it most.

It is designed to be used as a supplemental battery to accompany the main starter battery.

The XP3000 has 3000 amp-hours of storage capacity, making it ideal for power backup sump pumps along with smaller vehicles such as ATVs, motorcycles, snowmobiles and more.

It comes with an M6 terminal bolt and is compatible with AGM, Conventional and Gel type electrolytes.

This battery received a 4.5-star positive rating and an online reviewer who commended it for its performance and reliability.

Reviewers also noted that the battery was easy to install and that it can withstand use in all weather conditions, including cold weather.

For best results with this battery, the company recommends using it with an XS Power Battery Charger (sold separately). It is also required that you read the included manual before installation.

7. VMAX XTR27-110 AGM Marine Battery

Deep cycle batteries are typically used for off-the-grid power systems or as part of an intermittent power system. They can release large amounts of energy over a period of time.

This is exactly what you need for sump pumps. VMAX XTR27-110 AGM Marine Battery stands out as one of the best batteries for backup sump pumps with a better deep cycle and a great reserve.

One thing you need to know about this battery is that it is a deep cycle battery. If you’ve ever owned a car, motorcycle, or anything with an engine and had to jump-start it, then you just might have used a deep cycle battery.

What we’re getting at here is that this isn’t your average 9-volt alkaline power cell.

This is a deep-cycle battery, and it is meant for extended use in harsh conditions. The only way to make it stronger is to install another smaller battery pack in series to make up the difference.

Due to its design, this battery has a limited voltage reserve, making it more suitable for use with solar and wind power than under normal conditions.

“It is designed especially for Marine and Commercial applications where long life and high performance are essential.

Expansive capacity combined with the superior float-charge capacity of this battery makes it an excellent choice for maintaining performance in demanding applications.”

8. VMAX Solar Battery SLR100 Vmaxtanks AGM 100ah 12V Wind Power Backup

Suppose you consider installing a battery-based backup sump pump on boats.

In that case, one option is the VMAX Solar Battery SLR100 Vmaxtanks AGM 100ah 12V Wind Power Backup Boat Lift, Rally Pro Plus Generator Group 27.

The VMAX Solar Battery SLR100 is an easy-to-install solar battery with high discharge capacity. It has built-in circuit protection making it safe for all applications for homes or businesses.  

The VMAX SLR100 AGM is suitable for all types of boats, including those with enclosed batteries.

The VMAX solar battery will start a backup sump pump typically within about a minute after a Sump Pump power is on.

The battery is applicable as a standby for house lighting and other small loads. The VMAX SLR 100 AGM is not the best for refrigeration or air conditioning systems.

This AGM battery has battery circuit protection and a large discharge capacity. The VMAX SLR100 AGM can start a backup sump pump within about a minute after the switch is on.

In addition, it can be used as an auxiliary power source for lighting, pumps, fans and other small loads.

considerations Before Buying Best Battery For Backup Sump Pump

Whether you live in a high-rise with numerous stories or in a home with an unfinished basement, flooding is something that no one wants to deal with at the best of times.

However, it becomes infinitely worse when you face an power outage. Fortunately, there are many battery backup sump pump options on the market today.

Here are some important considerations before buying your next battery for a backup sump pump so that you can make the best decision for your needs.

1: Battery Backup Time

The amount of battery backup time need for a specific application largely depends on how often the backup pump turns on. And how much water it is pumping out.

For example, if a broken pipe floods a basement, it probably won’t take long to pump out the water.

A small backup sump pump may only need to run briefly until the main power restores or help arrives. So it would help if you had a battery which could withstand till the arrival of help.

2: Water Rate

The amount of water which sump pump is pumping out  directly impacts the amount of energy needed to pump the water out.

It is not uncommon for a backup sump pump to pump up to 20 gallons per minute, which translates into many currents.

A good battery for a backup sump pump should have enough capacity to handle this current load.  

3: Water Capacity

Battery capacity is related to the amount of time it can deliver power to the pump, but it has another important aspect.

Let’s say that you have a very effective battery backup sump pump, but little water is left in the sump pit after flooding.

This means that the current will be limited. It would be best to have a backup battery that could recharge fast enough to keep up with demand.

Conclusion

It is a good decision to use a battery backup sump pump for your home. So, battery backup sump pump is the best way to protect your home from flooding and also during power outages or emergencies.

Backup power systems are usable with other equipment and generators, that provide additional support during high water conditions.

But these backup sump pumps could not be of any use if they don’t have a good battery that can support such harsh conditions.

so we did our best to find you the best battery for backup sump pumps.