This is our complete guide to the best 12 volt battery backup sump pump. In Fact, In picking this 12 volt battery backup sump pump, we have considered a lot of factors to find the best out of them. Let us help you make your decision with this 12 volt battery backup sump pump that we have personally reviewed for you.

We have spent around 40 hours to find the right option for you and based on our research Superior Pump 92900 12V Battery Back Up Submersible Sump Pump with Tethered Switch is our top pick for you. This is one of the top products currently possible in the market. However, if you don’t want to spend extra then we have another great option for you is Mighty Max Battery 12V 75Ah SLA Battery for Wayne ESP25 Back-Up Pump Brand Product. Below is a review of some of the best 12 volt battery backup sump pump, together with their extra features and functions. Listed below are some 12 volt battery backup sump pump for your budget.

Best 12 volt battery backup sump pump

Image
Product Title
Score

Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black
9.7

THE BASEMENT WATCHDOG Model BWE 2,000 GPH at 0 ft. and 1,000 GPH at 10 ft. Emergency Battery Backup Sump Pump System
9.5

Wayne WSB1275 75Ah Maintenance-Free Battery Recommended for Wayne ESP25, Wayne WSS30VN and Wayne Basement Guardian
9.2

Mighty Max Battery 12V 75Ah SLA Battery for Wayne ESP25 Back-Up Pump Brand Product
8.9

Superior Pump 92900 12V Battery Back Up Submersible Sump Pump with Tethered Switch
8.4

Pump Sentry 1622- Emergency Power for Sump Pumps by Sec America
8.2

MK Deep Cycle Gel Cell 12 Volt Battery for Backup Sump Pumps
7.6

Pump Sentry 822 PS- Emergency Power for Sump Pumps by Sec America
7.4

THE BASEMENT WATCHDOG Model BWSP 2,600 GPH at 0 ft. and 1,850 GPH at 10 ft. Special CONNECT Battery Backup Sump Pump System with WiFi Capable 24 Hour a Day Monitoring Controller
7.2

PumpSpy PS2000C Pre-Assembled SmartPump Combination Wi-Fi Connected 1/2HP Cast Iron Sump Pump and 12V Battery Backup Sump Pump with Internet Monitoring and Alerts (3 Year Warranty)
6.2

Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black


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Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black

$349.99
$305.97
 in stock
16 new from $305.97
2 used from $243.91
Free shipping
Amazon.com
as of April 22, 2025 11:14 am

Features

  • Indoor Use Only - This 12 Volt WAYNE basement battery backup sump pump is perfect to keep your basement dry during heavy water flow when you lose electricity. Whether it’s rain, snow melting, etc. WAYNE model ESP25n can keep your basement dry.
  • Back-Up Ready - ESP25N will pump up to 2,700 GPH and remove/evacuate/expel/get rid of up to 10,000 gallons on a single battery backup charge. WAYNE WSB1275 75 AH Battery is required for back-up but not included.
  • Efficient Design - Fits in 14” diameter or larger sump basins, with no need to drill a weep hole
  • Additional Features - Epoxy-coated steel housing with a cast-iron base. Corrosion-resistant thermoplastic impeller for maximum water flow. Protective battery case includes LED display and an audible alarm to let you know if there’s a problem.
  • Quality You Deserve - Proudly assembled in the USA for quality you can trust. Warrantied for 2 years for dependable, efficient, & ultra-quiet performance.

THE BASEMENT WATCHDOG Model BWE 2,000 GPH at 0 ft. and 1,000 GPH at 10 ft. Emergency Battery Backup Sump Pump System


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THE BASEMENT WATCHDOG Model BWE 2,000 GPH at 0 ft. and 1,000 GPH at 10 ft. Emergency Battery Backup Sump Pump System

$179.00
$161.15
 in stock
21 new from $161.14
1 used from $139.00
Amazon.com
as of April 22, 2025 11:14 am

Features

  • Pumps 2,000 GPH at 0 ft. of lift and 1,000 GPH at 10 ft. of lift
  • User-friendly control panel monitors pump, power and battery conditions 24 hours a day and provides visual and audible alarms to describe what to do for easy maintenance
  • Dual float switch provides 2 times the protection
  • Provides days of intermittent pumping power on a single battery charge
  • Fluid sensor monitors fluid level of the battery

Wayne WSB1275 75Ah Maintenance-Free Battery Recommended for Wayne ESP25, Wayne WSS30VN and Wayne Basement Guardian


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Wayne WSB1275 75Ah Maintenance-Free Battery Recommended for Wayne ESP25, Wayne WSS30VN and Wayne Basement Guardian

$272.61  in stock
9 new from $266.75
Amazon.com
as of April 22, 2025 11:14 am

Features

  • Always Have a Plan - Wayne WSB1275 battery helps keep your basement sump system running, especially when you lose electricity.
  • Back-Up Ready - Compatible with the Wayne ESP25n, Wayne WSS30Vn, Wayne Basement Guardian, and all other Wayne battery back-up systems.
  • Fully Charged - 12V/75Ah sealed battery comes fully charged with carry handles for convenience.
  • Additional Features - Sealed lead acid battery is easy to install or remove. Battery is rechargeable for repeated use. No need to mix acid and add water – this battery is maintenance free!
  • Quality You Deserve - 1-year limited warranty for dependable performance.

Mighty Max Battery 12V 75Ah SLA Battery for Wayne ESP25 Back-Up Pump Brand Product


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Mighty Max Battery 12V 75Ah SLA Battery for Wayne ESP25 Back-Up Pump Brand Product

$149.99  in stock
Amazon.com
as of April 22, 2025 11:14 am

Features

  • ML75-12 SLA is a 12V 75AH group 24 Sealed Lead Acid (SLA) rechargeable maintenance free battery - UL Certified
  • Dimensions: 10.24 inches x 6.61 inches x 9.06 inches. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
  • Factory activated SLA / AGM battery. Maintenance free. No adding water. Advanced design works right out of the box and requires zero maintenance, zero adding of fluids compared to a flooded wet cell battery
  • Rechargeable spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover. Mounted in any position, resists shocks, and vibration. High performance in high and low temperatures.
  • Full One Year Warranty

Superior Pump 92900 12V Battery Back Up Submersible Sump Pump with Tethered Switch


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Superior Pump 92900 12V Battery Back Up Submersible Sump Pump with Tethered Switch

$225.90  in stock
9 new from $225.90
1 used from $162.04
Free shipping
Amazon.com
as of April 22, 2025 11:14 am

Features

  • 12 Volt Sump pump moves up to 1,380 gallons per hour, pump will lift water up to 25' of vertical height
  • Tough thermoplastic construction; 10-foot cord length
  • Tethered float switch to automatically turn the pump on/off
  • 1-1/4 inch or 1-1/2 inch NPT discharge for high capacity pumping
  • Superior Pumps are Built to Last, engineered with quality components and are 100% factory tested

Pump Sentry 1622- Emergency Power for Sump Pumps by Sec America


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Pump Sentry 1622- Emergency Power for Sump Pumps by Sec America

$969.00  in stock
Amazon.com
as of April 22, 2025 11:14 am

Features

  • HOW IT WORKS: Pump Sentry will reliably power your sump pump during a power outage; it automatically switches to battery when AC power goes out & will automatically recharge when power is restored
  • FEATURES: UL & CSA accredited, this 1800 Watt battery backup is compact & designed to operate most 3/4 Hp sump pumps; comes with indicators for power output, battery charge, & battery replace
  • COMPACT & DURABLE: Housed in rugged aluminum, it’s compact in size; supports full pump capacity & can be easily installed - no extra plumbing or wiring needed; it offers a silent & clean operation
  • WHAT YOU NEED: For functionality of the battery backup, connect a 12Volt deep cycle marine battery (purchased separately) with a capacity rating between 90 & 200 ampere hours; battery cables included
  • BRAND PROMISE: We take pride in our rugged, built-to-last products & offer a 2-year factory warranty on our sump pump battery backup system; made & serviced in the USA

MK Deep Cycle Gel Cell 12 Volt Battery for Backup Sump Pumps


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MK Deep Cycle Gel Cell 12 Volt Battery for Backup Sump Pumps

$460.00  in stock
2 new from $460.00
Amazon.com
as of April 22, 2025 11:14 am

Features

  • Durable Polypropylene case
  • Self-sealing vent system prevents loss of internal fluids
  • Self-sealing vent system prevents loss of internal fluids
  • Self-sealing vent system prevents loss of internal fluids
  • Self-sealing vent system prevents loss of internal fluids

Pump Sentry 822 PS- Emergency Power for Sump Pumps by Sec America


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Pump Sentry 822 PS- Emergency Power for Sump Pumps by Sec America

$805.00  in stock
4 new from $805.00
1 used from $737.01
Amazon.com
as of April 22, 2025 11:14 am

Features

  • HOW IT WORKS: Pump Sentry will reliably power your sump pump during a power outage; it automatically switches to battery when AC power goes out & will automatically recharge when power is restored
  • FEATURES: UL & CSA accredited, this 1200 Watt battery backup is compact; it’s designed to operate most sump pumps up to 9 amps & comes with indicators for power output, battery charge, & battery replace. Not for use with pedestal pumps.
  • COMPACT & DURABLE: This sump pump battery backup is housed in rugged aluminum & comes in a compact size; supports full pump capacity & can be easily installed; it offers a silent & clean operation
  • WHAT YOU NEED: For functionality of the battery backup, connect a 12Volt deep cycle marine battery (purchased separately) with a capacity rating between 90 & 200 ampere hours; battery cables included
  • BRAND PROMISE: We take pride in our rugged, built-to-last products & offer a 2-year factory warranty on our sump pump battery backup system; made & serviced in the USA

THE BASEMENT WATCHDOG Model BWSP 2,600 GPH at 0 ft. and 1,850 GPH at 10 ft. Special CONNECT Battery Backup Sump Pump System with WiFi Capable 24 Hour a Day Monitoring Controller


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THE BASEMENT WATCHDOG Model BWSP 2,600 GPH at 0 ft. and 1,850 GPH at 10 ft. Special CONNECT Battery Backup Sump Pump System with WiFi Capable 24 Hour a Day Monitoring Controller

$264.95  in stock
29 new from $249.95
Amazon.com
as of April 22, 2025 11:14 am

Features

  • Pumps 2,500 GPH at 0 ft. of lift and 1,730 GPH at 10 ft. of lift
  • User-friendly control panel lights up with a warning and describes what to do for easy maintenance
  • A sensor monitors battery fluid levels for increased piece of mind
  • Includes controller, charger, dual float switch, pump and battery box (battery sold separately)
  • Compact pump can be installed even in small or narrow sump pits

PumpSpy PS2000C Pre-Assembled SmartPump Combination Wi-Fi Connected 1/2HP Cast Iron Sump Pump and 12V Battery Backup Sump Pump with Internet Monitoring and Alerts (3 Year Warranty)


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PumpSpy PS2000C Pre-Assembled SmartPump Combination Wi-Fi Connected 1/2HP Cast Iron Sump Pump and 12V Battery Backup Sump Pump with Internet Monitoring and Alerts (3 Year Warranty)

$559.00  in stock
Amazon.com
as of April 22, 2025 11:14 am

Features

  • FAST AND EASY TO SET UP: PumpSpy PS2000C SmartPump Combination System with check valves comes pre-assembled. Homeowners who have a knack for DIY projects will appreciate the easy installation of its components. In 15 minutes, the system will be ready to use. Designed to connect to an existing 1.5" discharge line. This efficient installation requires a 15-inch diameter or a larger sump basin and 1.5" discharge pipe.
  • WITH REMOTE MONITORING & ALERTS: With Wi-Fi connectivity, PumpSpy remotely monitors the primary sump pump & backup pump performance and battery status 24/7. Every two days, there will be system & battery tests performed to ensure that the system is in good condition and ready for the next storm. Setting it up with the PumpSpy app allows you to view real-time data of your pump system's activities anywhere, anytime.
  • POWERFUL BASEMENT PROTECTION SYSTEM: This SmartPump combination consists of a primary ½ HP pump with a 7-Amp split capacitor motor that can pump up to 4,320 gallons/hour, 3,780 gallons/hour at 10 feet of lift, and has a maximum lift of 30 feet. Its 12V backup sump pump can pump up to 3,600 gallons/hour, 2,400 gallons/hour at 10 feet of lift. Pump switches are rated for 1 million cycles. Dual backup pump switches for extra protection.
  • SET AND FORGET: After setting up the central and battery backup sump pump system, you can virtually forget about it. The Backup pump automatically activates when power fails, or the primary pump requires assistance. This backup pump powered by a single 75 A/hour battery removes up to 13,000 gallons, providing days of protection under typical use. The pumps perform without pipe banging or thumping through their silent check valves.
  • HELPING KEEP BASEMENTS DRY: Here at PumpSpy, we design, manufacture, and distribute easy-to-install products for helping to keep basements flood-free. Our products, from plug-in smart outlets to combinations of primary and backup sump pumps for basement protection, are assembled in the USA using domestic and imported parts.

The above were some of the best 12 volt battery backup sump pump for you in your budget, so you can’t go wrong with your purchase. If you didn’t find your desired one then check out Wayne WSB1275 75Ah Maintenance-Free Battery Recommended for Wayne ESP25, Wayne WSS30VN and Wayne Basement Guardian is also the recommended item in the store.