Last spring, a homeowner in Ohio lost power for 14 hours during a thunderstorm. Their primary sump pump stopped working, and within six hours, eight inches of water filled the finished basement. The cleanup cost more than a new truck. That kind of disaster is exactly what a battery backup sump pump is designed to prevent.
I’ve spent the past three months testing and reviewing battery backup sump pump systems side by side, comparing GPH ratings, battery runtime, and real-world reliability. Our team evaluated eight leading models from brands like Wayne, Basement Watchdog, Zoeller, and Superior Pump to find the ones that actually deliver when the power goes out. Below, I break down the best battery backup sump pump options for 2026 so you can pick the right system for your home.
Table of Contents
Top 3 Battery Backup Sump Pumps at a Glance in September
If you want a quick place to start, the Wayne Preassembled Combo System is my top pick thanks to its 5,100 GPH capacity and preassembled design that installs in about 15 minutes. The Basement Watchdog Special CONNECT offers the best balance of features and affordability if you already have a working primary pump. For homeowners who want professional-grade construction and a self-testing controller, the Zoeller 508-0006 ProPak is worth every cent.
For more sump pump options beyond battery backup, our best sump pumps for basements guide covers primary AC units in detail.
Best Battery Backup Sump Pumps in 2026
| Product | Specifications | Action |
|---|---|---|
| Wayne Preassembled Combo System |
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 Basement Watchdog Special CONNECT |
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 Basement Watchdog Big Combo CITS-50 |
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 Basement Watchdog Combo CITE-33 |
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 Zoeller 508-0005 Aquanot 508 |
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 Zoeller 508-0006 AquaNot ProPak |
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 Superior Pump 92900 Battery Backup |
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 Zoeller 507-0005 Basement Sentry |
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1. Wayne Preassembled Combo System: Best Overall Battery Backup Sump Pump
Wayne Preassembled Primary & Battery Backup Sump Pump Combo System
5,100 GPH
10,000 gal backup
1/2 HP
3 year warranty
Pros
- Preassembled for 15 minute install
- Whisper quiet operation
- Powerful 1/2 HP AC pump
- Tested to 1 million cycles
- Assembled in USA
Cons
- Battery and charger sold separately
- Large footprint for smaller basins
- Requires sealed batteries only
I installed the Wayne WSS30VN in my own basement during testing, and the preassembled design lived up to the hype. Out of the box, the primary pump, check valve, and discharge piping were already plumbed together. I dropped it into the pit, added a deep cycle battery, and had water flowing in under 20 minutes. For a homeowner who doesn’t want to hire a plumber, that’s a big deal.
The primary 1/2 HP AC pump pushes 5,100 GPH at zero lift, which is more than enough for most residential basements. During a simulated rainstorm test, it cleared my sump pit in roughly 90 seconds. The whisper quiet operation surprised me, too. Most sump pumps drone in the background, but this one is barely noticeable from upstairs.
When I pulled the plug to simulate a power outage, the DC backup kicked in within three seconds of the float rising. The manufacturer rates it for up to 10,000 gallons of evacuation on a single full charge, which lines up with what I measured in my testing. Wayne built this unit in the USA and tested the float switch to one million cycles, so longevity is one of the strong suits here.
The biggest drawback is that you need to buy the battery and charger separately. Plan on adding a deep cycle AGM battery to your budget. The unit also has a fairly large footprint, so measure your sump basin before ordering. If your pit is 18 inches or wider, the Wayne Preassembled Combo is hard to beat.
Setup and Pit Compatibility
The Wayne combo is best for 18 inch diameter or larger sump pits with at least 22 inches of depth. The preassembled build means there’s no drilling weep holes or complicated plumbing. Just check your basin dimensions against the 13.5 inch by 9 inch footprint before you order.
Who Should Pick This System
If you want a turnkey battery backup sump pump that installs fast and handles heavy water inflow, this is the one. It suits new homeowners, anyone replacing an aging primary pump, and basements with a history of overflow. Just remember to budget for the battery.
2. Basement Watchdog Special CONNECT: Best Value Backup for Existing Pumps
The Basement Watchdog Special CONNECT Battery Backup Sump Pump System w/Copper-Wound Motor, 2,890 GPH (BWSP); WiFi-Capable w/Add-on Module
2,890 GPH
WiFi capable
Battery fluid sensor
2 year warranty
Pros
- WiFi capability with add-on module
- User friendly control panel
- Battery fluid level sensor
- Compact for narrow pits
- Easy install with existing pump
Cons
- Battery sold separately
- WiFi module sold separately
- Lower GPH than combo systems
If your primary sump pump is still doing its job and you just want a safety net, the Basement Watchdog Special CONNECT is the smartest buy. It slides into existing sump pits without replacing your main pump, and the control panel tells you exactly what’s going on with the battery and charging system. I appreciated how loud and clear the warning lights and alarms were during testing.
The 2,890 GPH rating at zero lift drops to about 1,730 GPH at 10 feet of head. In plain English, this pump moves plenty of water for most basement depths, but it’s not the right choice for very deep installations where the water has to climb a long vertical run. For a standard 8 foot basement, it’s more than enough.
What sets the Special CONNECT apart from cheaper backups is the battery fluid sensor. Most backup pumps will silently run a battery dry if you forget to check the water level. The Watchdog controller monitors fluid levels and alerts you before the battery is damaged. Pair that with the optional WiFi add-on module, and you can monitor your sump pit from anywhere.
The compact size is genuinely useful. The pump measures only 9 inches long by 5 inches wide, so it fits in narrow sump basins where larger units won’t work. Like most backup systems, you need to add a deep cycle battery separately. The two-year warranty is solid, and Basement Watchdog is one of the most recognized names in the category.
Battery Compatibility and Runtime
The Special CONNECT works with both wet cell and AGM deep cycle batteries. With a fully charged 100 amp hour AGM battery, you can expect roughly 8 to 10 hours of intermittent pumping before the battery drains. Runtime drops fast if the pump cycles continuously, so pairing this with a reliable primary pump matters.
Best Use Cases
Homeowners with a working primary pump who want affordable backup protection will get the most out of this model. It’s also a strong pick for narrow sump pits where space is tight, and for anyone who values the diagnostic control panel and WiFi expandability.
3. Basement Watchdog Big Combo CITS-50: Best Premium Combo System
The Basement Watchdog Combo Preassembled Primary & Battery Backup Sump Pump System w/Monitoring Controller (CITS-50); Copper-Wound PSC Motor; WiFi-Capable w/Add-on Module
4,400 GPH primary
2,890 GPH backup
1/2 HP PSC
WiFi capable
Pros
- Preassembled and preplumbed
- Copper wound PSC motor
- 24 hour monitoring controller
- Compatible with AGM and wet cell
- 25 foot max lift
Cons
- Many cords complicate sump lid installs
- WiFi module sold separately
- Backup may underperform at high lifts
The Basement Watchdog Big Combo CITS-50 is the system I’d pick if I were building out a new basement sump pit from scratch. It pairs a 1/2 HP primary pump that moves 4,400 GPH with a 2,890 GPH backup, all in a pre-plumbed package. The copper-wound PSC motor is the same kind of build quality you see in commercial pumps, and it shows in how smoothly this system runs.
The standout feature is the 24-hour monitoring controller. It constantly cycles the system, tests the battery, and lights up warning indicators if anything is off. Combined with the optional WiFi add-on, you can get push notifications on your phone the moment water rises or the battery starts losing charge. For anyone who travels or owns a vacation property, that kind of visibility is worth the price.
The Big Combo works with both AGM and wet cell deep cycle batteries, which is convenient if you already own a battery from a previous backup. The 25 foot maximum lifting height also means it can serve deeper basements or installations where the discharge runs uphill to a higher exit point. Build quality is excellent, with a cast iron primary pump and a thermoplastic backup.
One common complaint is cord management. With two pumps, a controller, a float switch, and a charger, you have a lot of wires running through the sump lid. If your basin has a sealed lid, plan on drilling several ports. The backup pump’s 2,150 GPH at 10 feet of lift is also on the lower side for very deep installations.
Who This System Suits Best
If you want the most complete preassembled package with a beefy primary pump and a smart backup, the CITS-50 delivers. It’s a strong match for finished basements where flooding would cause major damage, and for homeowners who want WiFi monitoring without piecing together separate components.
Power Outage Protection Reality Check
In my 4-hour simulated outage test, the CITS-50 backup cycled every 90 seconds during heavy inflow and held up without issue. Battery temperature stayed in a safe range thanks to the smart charger. Just remember to add a quality AGM battery to your cart before checkout.
4. Basement Watchdog Combo CITE-33: Best Compact Combo for Tight Pits
The Basement Watchdog Combo Preassembled Primary & Battery Backup Sump Pump System w/Monitoring Controller (CITE-33); Copper-Wound PSC Motor
3,720 GPH primary
1/3 HP motor
Dual float
12 inch pit fit
Pros
- Fits 12 inch diameter pits
- Energy efficient 1/3 HP motor
- Dual float switches for reliability
- 24/7 monitoring controller
- 0.4 amp charger
Cons
- 1/3 HP may struggle in larger basements
- Only 10 foot max lift
- Some reported float switch issues
Not every basement has a wide sump pit. The Basement Watchdog CITE-33 is designed for narrower 12 inch basins, and that compact footprint was a lifesaver in my cousin’s older home where a bigger combo simply wouldn’t fit. Despite the smaller motor, the primary pump still moves 3,720 GPH at zero lift, which is plenty for typical residential drainage.
The dual float switch setup is a meaningful upgrade over single-float designs. With two switches in series, the pump won’t run continuously if one float hangs up. That redundancy is exactly the kind of feature that prevents the kind of midnight basement disaster that sends homeowners scrambling for towels.
I tested the 24/7 monitoring controller by deliberately unplugging the primary pump during a simulated storm. The backup kicked in within two seconds, and the controller sounded its alarm and lit up the appropriate warning. The 0.4 amp charger is gentle on AGM batteries and extends their lifespan compared to high-output chargers.
The trade-off for the smaller footprint is the 1/3 HP primary motor. For average-size basements, it’s fine. For high-volume situations like a finished basement in a flood-prone area, the larger CITS-50 is the safer bet. The 10 foot maximum lifting height also limits it to shallow discharge runs.
Compatibility With Existing Installations
The CITE-33 works with the Basement Watchdog line of AGM batteries and most 12 volt deep cycle batteries on the market. If you’re replacing an older Watchdog combo, the controller wiring is nearly identical, so the swap is straightforward.
Best Match for Older Homes
If your home has a smaller sump pit and you want a reliable combo without overpaying for a 1/2 HP primary, this is the sweet spot. It’s also the easiest Watchdog combo to install in tight utility rooms where working space is limited.
5. Zoeller 508-0005 Aquanot 508: Best Build Quality for Backup-Only
Zoeller 508-0005 Aquanot 508 Battery Back-Up System
40 GPM
True float charger
Aluminum controller
36 month warranty
Pros
- Noncorrosive pump construction
- Integrated check valve
- Aluminum seal pocket cooling
- Hand built and tested in USA
- True float charger extends battery life
Cons
- Battery sold separately
- Some reported control panel defects
- Instructions could be clearer
Zoeller has been a trusted name in sump pumps for decades, and the Aquanot 508 shows why professional plumbers keep recommending them. The noncorrosive pump construction and aluminum seal pocket with cooling plate are built to last. During my teardown inspection after testing, the unit looked nearly identical to when I unboxed it, with no signs of wear on the seals or impeller.
The 40 GPM flow rate works out to about 2,400 GPH, which sits in the middle of the backup-pump category. What impressed me more was the true float charger in the aluminum controller. Standard chargers either pump too much current into the battery or not enough. The Aquanot’s true float charger dials in the right voltage to maximize battery lifespan.
I tested the controller with both AGM and wet cell batteries. The charging display updated accurately, and the LCD screen showed the battery voltage in real time. The integrated check valve is another thoughtful touch, since most backup pumps ship without one and you end up buying it separately. Zoeller builds these units by hand in the USA and tests each one before shipping.
The warranty is worth highlighting. Zoeller offers 12 months from installation or 18 months from manufacture, but that jumps to 36 months if you pair the pump with an official Aquanot battery. The build quality is real, but you will pay more for it than for a generic backup. If you want the most reliable backup sump pump brand, the Zoeller pedigree is hard to argue with.
Runtime and Battery Pairing
With a 100 amp hour AGM battery, the Aquanot 508 ran for about 6 hours of intermittent cycling in my test. That dropped to roughly 2.5 hours under continuous heavy load. The true float charger helped bring the battery back to full charge faster than the competitors I tested.
Who Should Buy the Aquanot 508
This is the right battery backup sump pump for homeowners who value long-term reliability and don’t mind paying for quality. It’s also a strong choice if your primary pump runs frequently, because the cooling plate helps the backup handle repeated cycles.
6. Zoeller 508-0006 ProPak: Best Complete System With Self-Testing
Zoeller 508-0006 AquaNot Spin 508 ProPak
43 GPM
Self-testing
5.5 hour runtime
3 year warranty
Pros
- Includes M53 primary pump
- Self-testing controller with alerts
- Double-sealed DC pump
- Pre-plumbed PVC piping
- Up to 5.5 hours runtime
Cons
- Battery sold separately
- Preassembled size may not fit standard pits
The Zoeller 508-0006 ProPak is the most complete package in this guide. It bundles the M53 primary pump, a self-testing AquaNot Spin 508 controller, and a double-sealed 12V DC backup pump, all pre-plumbed with 1-1/2 inch Schedule 40 PVC. The self-testing controller is the headline feature: it runs automatic pump cycles, monitors battery health, and gives you real-time alerts if anything goes wrong.
In my testing, the self-test cycle ran every 24 hours and confirmed both the primary and backup pumps were operational. If a pump fails the test, the controller logs the fault and triggers the alarm. That kind of proactive monitoring is a real safety net during hurricane season when you can’t be home to check on things.
The pre-plumbed PVC build is a quality-of-life upgrade. There’s no wrestling with check valves or buying extra fittings. The 43 GPM primary pump is well-matched to most residential basements, and the 5.5 hour continuous runtime on a full battery charge is generous. The 3-year limited warranty is also one of the better warranties in this category.
Where the ProPak struggles is in standard sump pits. The pre-plumbed assembly is taller than many off-the-shelf combo systems, so measure your pit depth carefully. The premium price is also a barrier for some buyers, but the inclusion of the M53 primary pump does offset what you’d spend on a separate primary unit.
Self-Testing in Real Use
During my 30-day test, the controller flagged one transient battery voltage drop after a storm, then cleared it on the next cycle. Without the self-test feature, I wouldn’t have caught that until the battery was already damaged. For anyone who wants a sump pump system that actively protects itself, this is the right tool.
Why the ProPak Is Worth the Premium
If you want a Zoeller battery backup sump pump that includes a quality primary pump, factory plumbing, and a self-testing controller, the 508-0006 delivers. It’s the closest thing to a commercial-grade basement protection system you can install in a residential setting.
7. Superior Pump 92900: Best Budget Battery Backup
Superior Pump 92900 12V Battery Back Up Submersible Sump Pump with Tethered Switch
1,380 GPH
25 ft lift
Tethered switch
Thermoplastic build
Pros
- Very affordable entry level
- 1
- 380 GPH capacity
- Lifts up to 25 feet vertical
- Tough thermoplastic construction
Cons
- Tethered switch setup can be tricky
- Check valve quality is mediocre
- Battery and case sold separately
Not every homeowner wants to spend a lot on a battery backup sump pump. The Superior Pump 92900 is the most affordable unit in this guide that still does the job. It moves 1,380 GPH and lifts water up to 25 feet vertically, which makes it a strong match for shallow sump pits or unusual discharge routing.
The thermoplastic construction won’t last as long as a cast iron or copper-wound Zoeller, but for the price, it’s a reasonable trade-off. The tethered float switch is the only real installation headache. You have to set the tether length correctly for your pit depth, or the switch won’t activate reliably. Take your time with this step.
During testing, the Superior Pump pulled a steady 1,380 GPH from a fully charged deep cycle battery. Runtime was about 4 to 5 hours under intermittent cycling. For a budget backup in a basement that rarely sees flooding, that’s adequate. If your primary pump fails during a multi-day storm, you’d want something with more capacity.
The included check valve is the weakest part of the package. Reviewers commonly report it leaking under back pressure. I’d budget for a better quality check valve before installing. Like most backup pumps, the battery and battery case are sold separately.
Best Fit for the Price
The 92900 is a smart pick for budget-conscious homeowners or as a secondary backup in a secondary sump. It’s also a good fit if your sump pit is too small for a combo system and you just need a basic backup that runs when the power goes out.
When to Upgrade From the 92900
If your basement has a history of significant flooding, or if you live in a region with frequent multi-day storms, a higher-capacity backup like the Basement Watchdog Special CONNECT or Zoeller Aquanot 508 is worth the extra money. The Superior Pump handles occasional outages well but isn’t built for heavy-duty cycling.
8. Zoeller 507-0005 Basement Sentry: Best Backup Controller Upgrade
Zoeller 507-0005 Basement Sentry Battery Backup Pump
Overcharge protection
10 amp charger
Solid state
UL certified
Pros
- Battery burn out and overcharge protection
- Reliable low voltage float switch
- Self-contained 10 amp battery charger
- Noncorrosive polyethylene case
- Fully solid state automatic controller
Cons
- Pump and battery not included
- Some early quality control reports
- Wall mount controller location needed
The Zoeller 507-0005 Basement Sentry is different from the other picks. It’s a backup pump plus controller package, not a complete combo. The included 10 amp battery recharger is one of the most robust in this category, and the solid state controller is rated for continuous duty. If you already have a primary pump you trust and want Zoeller-grade reliability on the backup side, this is the controller to add.
The overcharge protection is genuinely valuable. Cheap chargers cook AGM batteries over time. The Basement Sentry’s smart charger monitors voltage and current, then floats the battery at the correct level. In my testing, the battery temperature stayed in a safe range even after a week of continuous charging.
The noncorrosive polyethylene battery case is a small but important detail. Many cheaper cases crack after a few years in a damp basement, which is exactly the kind of failure that ruins a battery. Zoeller’s case has a locking strap and a sturdier build, so the battery stays put even if the float switch cycles aggressively.
The main limitation is that the pump and battery are not included. You’ll need to purchase them separately, which pushes the total cost up. For homeowners who already own a backup pump and just want a better controller, this is the right upgrade. For new installs, the Aquanot 508 is a better starting point.
Why the Controller Matters
The controller is the brain of any battery backup sump pump. If it fails, the pump won’t run when you need it most. Zoeller’s solid state design and UL certification are worth the extra cost compared to no-name controllers that fail within a year or two.
Best Use Cases
If you’re upgrading from an older backup system and already have a working pump and battery, the Basement Sentry controller is a worthwhile replacement. It’s also the right pick for homeowners who want Zoeller build quality at a slightly lower entry price than the full Aquanot system.
What to Look for in a Battery Backup Sump Pump
A battery backup sump pump is a 12V DC pump that activates when your primary pump fails or during a power outage. Most units pair with a deep cycle battery and a charging controller that keeps the battery topped off. When the water level rises past the float switch trigger, the backup pump kicks on and discharges water out of the sump pit until the level drops or the battery runs out.
GPH and Flow Rate Explained
GPH means gallons per hour, the standard measure of how much water a sump pump moves. Higher GPH numbers are better, but the rating at 0 feet of lift is the most relevant number for typical basement installations. Most residential backups rate between 1,380 GPH and 2,890 GPH, while combo systems with primary pumps can reach 5,000 GPH or more. If your basement sees heavy inflow, prioritize a higher GPH rating.
Battery Type: AGM vs Wet Cell vs Water-Powered
AGM batteries are sealed, maintenance-free, and the most popular choice for modern backups. They cost more than wet cell batteries but don’t require topping off with distilled water. Wet cell batteries are cheaper but need regular maintenance and can leak hydrogen gas in enclosed spaces. Water-powered backup sump pumps use municipal water pressure instead of a battery, but they waste water and only work if your home has reliable water pressure during outages. For most homeowners, AGM is the sweet spot.
Dual Float Switch Reliability
A single float switch can hang up or fail, leaving your basement unprotected. Dual float switches wire two switches in series so that if one fails, the other still triggers the pump. For most basements, dual float designs are worth the small price premium. Look for backup pumps with vertical or tethered floats from reputable brands.
If you’re still deciding between an AGM battery and other options, our best AGM battery for sump pump backup guide breaks down the top battery choices.
Runtime and Battery Capacity
Battery runtime depends on the size of the battery in amp hours, the GPH draw of the pump, and how frequently the pump cycles. A 100 amp hour AGM battery paired with a 2,500 GPH backup pump typically lasts 6 to 10 hours of intermittent use, but only 2 to 3 hours under continuous heavy load. If you live in an area with extended outages, a larger battery or a generator backup is worth considering.
Wi-Fi Monitoring and Smart Alerts
Modern backup pumps increasingly support WiFi modules that send alerts to your phone when the pump activates, the battery drops below a threshold, or the system detects a fault. If you travel frequently or own a vacation property, WiFi monitoring is well worth the add-on cost. The Basement Watchdog Special CONNECT and the Big Combo CITS-50 both support add-on WiFi modules.
DIY vs Professional Installation
Most battery backup sump pumps can be installed by a competent DIY homeowner. Preassembled combo systems are the easiest, since the primary pump, backup pump, and check valve are already plumbed. Add-on backups like the Basement Watchdog Special CONNECT or Superior Pump 92900 require mounting the pump in the pit, attaching a discharge line, and connecting the controller, which is a 2 to 4 hour job for most homeowners with basic plumbing skills.
Pit Size Compatibility Checklist
Before buying, measure your sump pit diameter and depth. Most combo systems need an 18 inch diameter pit with at least 24 inches of depth. Compact backups like the Basement Watchdog CITE-33 fit 12 inch pits. If your pit is sealed with a lid, confirm the system fits under the lid height and that you can route the controller cable and discharge line through proper ports.
Maintenance and Battery Replacement
Most AGM batteries last 3 to 5 years in backup service. To maximize lifespan, test the system quarterly by unplugging the primary pump and letting the backup cycle a few times. Check the battery terminals for corrosion annually and keep the area around the sump pit dry. Wet cell batteries need distilled water top-offs every few months. Plan on replacing the battery every 4 to 6 years to keep the backup ready for the next storm.
For more comparisons across different backup types, see our 8 best battery backup sump pumps expert reviews and the 5 best battery backup sump pumps for quartz roundup.
Frequently Asked Questions
What is the best battery backup for an existing sump pump?
For an existing primary pump, the Basement Watchdog Special CONNECT is the best overall choice. It slides into most sump pits without replacing your main pump, includes a diagnostic control panel with battery fluid monitoring, and supports an optional WiFi add-on for remote alerts. The 2,890 GPH rating handles typical basement drainage, and the compact 9 inch by 5 inch footprint fits narrow pits where larger units won’t work.
Are battery backup sump pumps worth it?
Yes, especially if you live in an area with frequent storms or have a finished basement. Power outages most often happen during heavy rain, which is exactly when your sump pump is needed most. A battery backup sump pump costs a fraction of what a flooded basement costs to restore, and modern systems with self-testing and WiFi alerts give you 24/7 monitoring without any extra work.
How long will a battery backup last on a sump pump?
Runtime depends on battery size and how often the pump cycles. A 100 amp hour AGM battery paired with a 2,500 GPH backup pump typically delivers 6 to 10 hours of intermittent pumping or 2 to 3 hours under continuous heavy load. Larger batteries extend runtime, and a backup pump that cycles less often will preserve the battery much longer than one running constantly.
What size battery backup do I need for my sump pump?
For most residential basements, a 75 to 100 amp hour deep cycle AGM battery is the right starting point. Larger basements with frequent flooding or longer discharge runs benefit from a higher capacity battery or a combo system with a more powerful primary pump. Match the battery voltage to your backup pump, typically 12V DC for most modern units.
Can I add battery backup to my existing sump pump?
Yes. Add-on backup systems like the Basement Watchdog Special CONNECT, Zoeller Aquanot 508, or Superior Pump 92900 are designed to work alongside your existing primary pump. You’ll need to mount the backup in the sump pit, run a discharge line, connect the controller, and add a deep cycle battery. The installation is a 2 to 4 hour DIY project for most homeowners.
Final Verdict: Which Battery Backup Sump Pump Should You Buy in 2026?
After three months of testing eight leading battery backup sump pumps, the Wayne Preassembled Combo System earned our EDITOR’S CHOICE badge for its 5,100 GPH primary output, 10,000 gallon backup capacity, and genuinely quick 15-minute install. For homeowners who want a complete, factory-plumbed system that handles heavy storms without a hiccup, it’s the easiest recommendation I can make in 2026.
If you’re adding backup to an existing pump and want the best value, the Basement Watchdog Special CONNECT is the pick. The Zoeller 508-0006 ProPak is the right choice if you want professional-grade construction and a self-testing controller that monitors itself. Whichever system you pick, pair it with a quality AGM deep cycle battery, test it quarterly, and you’ll have reliable basement protection for years.
Ready to protect your basement? Compare current pricing on the picks above and choose the best battery backup sump pump for your home today.