10 Best Backup Sump Pumps 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 392 products, scanning 1960 reviews, spending more than 36 hours of research and speaking with our test users, we think the Wayne ESP25 Upgraded 12-Volt Battery Backup System is the one of the Best Backup Sump Pump on the market.

# Image Name Brand Price
1
‚≠źBest Choice
Wayne ESP25 Upgraded 12-Volt Battery Backup System
Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black Check price Wayne $$$$$ Check price
2
ūüí≤Best value for the money
Basement Watchdog BWE 1000 Gallons Per Hour Basement Watchdog Emergency
Basement Watchdog BWE 1000 Gallons Per Hour Basement Watchdog Emergency Back-Up Sump Pump Check price Basement Watchdog $$$$$ Check price
3
Best under $200
Liberty
Liberty, SJ10, Sump Pump, Water Powered, 3/4 In. NPT Check price Liberty Pumps $$$$$ Check price
4 Liberty Sump Pump Liberty Sump Pump - Jet Water-Powered Back up Sump Pump # SJ10 Check price Liberty $$$$$ Check price
5 Basement Watchdog BWSP 1730 Gallons Per Hour Basement Watchdog Special Basement Watchdog BWSP 1730 Gallons Per Hour Basement Watchdog Special Back-Up Sump Pump Check price Basement Watchdog $$$$$ Check price
6 Zoeller 508-0005 Aquanot 508 Battery Back-Up System Zoeller 508-0005 Aquanot 508 Battery Back-Up System Check price Zoeller $$$$$ Check price
7 Zoeller 507-0005 Basement Sentry Battery Backup Pump Zoeller 507-0005 Basement Sentry Battery Backup Pump Check price Zoeller $$$$$ Check price
8
Best under $150
WAYNE CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel
WAYNE CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel Sump Pump With Integrated Vertical Float Switch Check price Wayne $$$$$ Check price
9
ūüĎĎPremium Pick
Pump Sentry 822 PS- Emergency Power for Sump Pumps by
Pump Sentry 822 PS- Emergency Power for Sump Pumps by Sec America Check price SEC America $$$$$ Check price
10 Superior Pump 92900 12V Battery Back Up Submersible Sump Pump Superior Pump 92900 12V Battery Back Up Submersible Sump Pump with Tethered Switch Check price Superior Pump $$$$$ Check price

Wayne ESP25 Upgraded 12-Volt Battery Backup System – Best Overall Backup Sump Pump

Wayne ESP25 Upgraded 12-Volt Battery Backup System
  • Upgraded ESP25 with epoxy steel body and cast-iron base. No more plastic
  • 2900 GPH at 0' provides additional protection to your primary Wayne sump pump
  • Assembled in USA, performance that lasts for years
  • Audible alarm sounds, notifying you when the back up system is active
  • Easy to read LED display shows back up system readiness
  • Requires a 75 amp hour battery, recommended for use with the Wayne Wsb1275 75 amp hour battery

Basement Watchdog BWE 1000 Gallons Per Hour Basement Watchdog Emergency – Best Budget Backup Sump Pump

Basement Watchdog BWE 1000 Gallons Per Hour Basement Watchdog Emergency
  • Pumps 1,000 gph at 10-Feet. of li-Feet and 2,000 gph at 0-Feet. of li-Feet
  • 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
  • Compatible with wet cell or maintenance free (AGM) batteries

Liberty – Best under $200

Liberty
  • Made In America
  • MECHANICAL COMPONENTS
  • Commercial Brand: Liberty
  • Package Dimensions: 18.0" L x 18.0" W x 21.0" H

Basement Watchdog BWSP 1730 Gallons Per Hour Basement Watchdog Special

Basement Watchdog BWSP 1730 Gallons Per Hour Basement Watchdog Special
  • 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

Zoeller 508-0005 Aquanot 508 Battery Back-Up System

Zoeller 508-0005 Aquanot 508 Battery Back-Up System
  • 12 volt highly efficient noncorrosive pump construction
  • Integrated check valve
  • Quick disconnect discharge
  • Aluminum seal pocket & cooling plate
  • Hand built & 100% tested in USA

Zoeller 507-0005 Basement Sentry Battery Backup Pump

Zoeller 507-0005 Basement Sentry Battery Backup Pump
  • Provides extra protection when the primary AC pump fails due to power outages, when the primary pump fails
  • All models have battery burn out and overcharge. Control device -Reliable low voltage float switch
  • Model 507 has a self contained 10 amp battery recharger. Battery case made from noncorrosive polyethylene. Contains lock strap
  • All systems are fully solid state automatic controllers with alarms, light indicators and have warning systems
  • NOTE: Sump Pump and Battery are not included, as they must be purchased separately. Alarm Off - yellow light indicates the buzzer is currently silenced

WAYNE CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel – Best under $150

WAYNE CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel
  • Assembled in the US with foreign and domestic parts
  • Top suction pump design minimizes air locks and clogging from debris in bottom of sump pit.Assembled in us, with foreign and domestic components
  • Stainless steel motor housing and rugged, cast iron pump base
  • Vertical float switch, tested to 1 million cycles!
  • 1-1/2 In. NPT Discharge for compliance with building codes

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

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

Superior Pump 92900 12V Battery Back Up Submersible Sump Pump

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

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