10 Best Battery Backup Sump Pumps 2024

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back – ⭐ Best Overall Battery Backup Sump Pump

WSS30VN by Wayne

  • Dimensions: 23.5 x 18.3 x 14 inches
  • Warranty: 3 year manufacturer
Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back
  • New and upgraded WAYNE WSS30V. Completely pre-assembled and drop in ready.
  • Primary pump float switch tested to 1 million cycles, up to 10X more than competitors.*
  • Assembled in the US with foreign and domestic parts
  • Protection when you need it, back up pump continues running when the power is out. For Use In 16 inch. Diameter or Larger Sump Basins
  • Primary pump moves up to 5100 GPH at 0 feet of head.
  • 12V DC back up pump moves up to 2900 GPH at 0 feet of head, one of the highest performing DC pumps on the market
  • Ultra-Quiet performance; 8 ft. SJTW Power Cord

THE BASEMENT WATCHDOG Model BWE 2 – 💲 Best Budget Battery Backup Sump Pump

BWE by THE BASEMENT WATCHDOG

  • Color: Black
  • Weight: 9 pounds
  • Dimensions: 4.5 x 8.5 x 6.5 inches
  • Warranty: 2 year
THE BASEMENT WATCHDOG Model BWE 2
  • Pumps 2,000 GPH at 0 ft. lift and 1,000 GPH at 10 ft. lift
  • User-friendly controller monitors battery, pump and power conditions 24 hours a day
  • Provides days of intermittent pumping power on a single battery charge
  • Compatible with both wet cell and maintenance-free AGM batteries

THE BASEMENT WATCHDOG Big Combo CONNECT Model CITS-50 1/2 HP

CITS-50 by THE BASEMENT WATCHDOG

  • Weight: 31 pounds
  • Dimensions: 8.8 x 11.8 x 18 inches
THE BASEMENT WATCHDOG Big Combo CONNECT Model CITS-50 1/2 HP
  • 1/2 HP energy efficient permanent split capacitor (PSC) primary pump can save money on your electric bills
  • Primary pump capacity 3,540 GPH at a 10 Ft. lift and 4,400 GPH at 0 Ft. lift. Backup system capacity 1,850 GPH at 10 Ft. lift and 2,600 GPH at 0 Ft. lift
  • Includes a WiFi capable battery backup system that provides 24 hours a day monitoring of pump, power and battery conditions, backup controller will sound an alarm, illuminates a warning light and describe what to do for easy maintenance
  • Allows for connection to a Basement Watchdog CONNECT Module (BW-WiFi or BW-HZM), giving you real time alerts via text, email, or through the Basement Watchdog App
  • Provides days of intermittent pumping power on a single battery charge and is compatible with both wet cell and maintenance-free AGM batteries. Connect two batteries in parallel for double the run time

Raybend Primary Sump Pump Backup Power System

by Raybend

Raybend Primary Sump Pump Backup Power System
  • Automatically switches over to Battery Power when AC power goes out. (Battery Not Included. A Deep Cycle AGM Battery is Recommended)
  • Generates a Pure Sine Wave 120 VAC voltage to reliably power your primary sump pump
  • Automatically recharges a Battery When AC Power is restored with a powerful 10 Amp Built-in charger
  • 1500 Watt Output is enough to power two Primary Sump Pumps simultaneously (6.25 Amps Max each)
  • Can be used as a power inverter for many applications requiring backup power

THE BASEMENT WATCHDOG Model BW-27AGM Maintenance Free (AGM) Sump Pump

BW-27AGM by THE BASEMENT WATCHDOG

  • Weight: 49.82 pounds
  • Dimensions: 8 x 12 x 12 inches
THE BASEMENT WATCHDOG Model BW-27AGM Maintenance Free (AGM) Sump Pump
  • Maintenance free - no need to add battery fluid or distilled water
  • Up to 40-hour protection (based on a 10% duty cycle) on the Basement Watchdog Big Dog (BWD12-120C+)
  • Up to 48-hour protection (based on a 10% duty cycle) on the Basement Watchdog Special + (BWSP+) and Basement Watchdog Big Combination sump pump system (BW4000)
  • Up to 80-hour protection (based on a 10% duty cycle) on the Basement Watchdog Emergency (BWE) and Basement Watchdog Combination sump pump system (DFK961)
  • Runs various Basement Watchdog sump pump systems intermittently for days

Pump Sentry 822 PS- Emergency Power for Sump Pumps by – 👑 Premium Pick

822 PS by SEC America

Pump Sentry 822 PS- Emergency Power for Sump Pumps by
  • 1200 Watt Battery Back Up System, UL & CSA Approved
  • Battery Cables Included, Rugged Aluminum Housing Compact Size
  • For Wall Mount or Surface Mount Installation
  • You will need to purchase (separately) a 12 volt deep cycle marine battery up to 200 amps
  • 2 Year Factory Warranty

WAYNE ESP15 Battery Back-Up 12 Volt Sump Pump System

57609-WYN1 by Wayne

  • Color: Black
  • Weight: 8.5 pounds
  • Dimensions: 17 x 11 x 13 inches
  • Warranty: 1 Year - Parts Only
WAYNE ESP15 Battery Back-Up 12 Volt Sump Pump System
  • 720-Gallons per hour at 10-feet of lift and maximum flow is 1750 gallons per hour
  • Corrosion resistant thermoplastic construction
  • Alarm sounds to notify you when the backup system is active
  • Requires one 40-ampere hour or one 75-ampere hour battery
  • 1-Year limited warranty

THE BASEMENT WATCHDOG Model BWSP 2

BWSP by THE BASEMENT WATCHDOG

  • Weight: 12 pounds
  • Dimensions: 5 x 9 x 7.6 inches
  • Warranty: 2 year
THE BASEMENT WATCHDOG Model BWSP 2
  • 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

Superior Pump 92900 12V Battery Back Up Submersible Sump Pump

92900 by Superior Pump

  • Color: 92900
  • Weight: 12.5 pounds
  • Dimensions: 13 x 10 x 16.5 inches
  • Warranty: 1 Year Limited Warranty
Superior Pump 92900 12V Battery Back Up Submersible Sump Pump
  • 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

THE BASEMENT WATCHDOG Model DFK961 1/3 HP Combination Submersible Sump

DFK-961 by THE BASEMENT WATCHDOG

  • Color: Silver and Yellow
  • Weight: 18.5 pounds
  • Dimensions: 8.8 x 10 x 17.8 inches
  • Warranty: 2 year
THE BASEMENT WATCHDOG Model DFK961 1/3 HP Combination Submersible Sump
  • Pre-assembled system allowing for easy installation with little or no plumbing knowledge necessary
  • ⅓ HP energy efficient permanent split capacitor (PSC) primary pump saves money on your electric bills
  • Primary pump capacity 3,100 GPH at a 10 ft. lift and 3,700 GPH at 0 ft. lift
  • Backup system capacity 1,000 GPH at 10 ft. lift and 2,000 GPH at 0 ft. lift
  • Includes the Basement Watchdog Emergency Battery Backup System with unique monitoring that sounds an alarm, illuminates a warning light and describes what to do for easy maintenance
  • Dual float switches on both the primary and backup systems provide 4X the protection
  • Provides days of intermittent pumping power on a single battery charge
  • Compatible with both wet cell and maintenance-free AGM batteries
  • Automatic 0.4 amp charger
  • Fluid sensor monitors fluid level of the battery

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