10 Best Battery Backup Sump Pump of December 2025

• Upgraded ESP25 with epoxy steel body and cast-iron base. No more plastic
• 2700 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
• Protective Battery Case Included with LED Display and Audible Alarm to Let Homeowner Know There’s a Problem
• Corrosion-Resistant Thermoplastic Impeller for Maximum Water Flow

Wayne

• 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

• 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

THE BASEMENT WATCHDOG

• 12 volt, 75 amp hour
• Sealed lead acid battery (no handling acid)
• Pre-charged and ready to use
• Compatible with all Wayne battery back-up products
• Carry handles for convenience

Wayne

• Complete pre-assembled system including check valves. Easy installation in as little as 15 minutes. 15 inch diameter or larger sump basin & 1.5” discharge pipe required
• Free PumpSpy monitoring & alerts included. PumpSpy remotely monitors primary sump pump & backup pump performance and battery status, 24/7. System & battery tests performed 3X per week. Get alerts and check on your pumps from anywhere, anytime. PumpSpy app available for iOS and Android.
• Primary ½ HP SmartPump pumps up to 4320 GPH, 3780 GPH @ 10’. 12V backup pumps up to 3400 GPH, 2400 GPH @ 10’. Pump switches rated for 1 million cycles. Dual backup pump switches for extra protection.
• Backup pump automatically activates when power fails, or primary pump requires assistance. Backup pump removes up to 13,000 gallons on a single 75 A/Hr. battery, providing days of protection under typical use.
• Extremely quiet pump performance! Assembled with silent check valves that eliminate thumping or pipe banging! PumpSpy products are assembled in USA from domestic and imported parts.

PumpSpy

• 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

Wayne

• 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

THE BASEMENT WATCHDOG

• 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

SEC America

• 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

• 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

Superior Pump