10 Best Sump Pump Backup System 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

• 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

• Includes: Model 53 115-volt pump, Model 508 Aqua not, 115 Volt DC backup system with pump, check valve, float switch and piping
• Plumbed in 1-1/2" Such 40 PVC pipe
• Comes fully assembled and ready to install in your clear water sump
• Extra protection when the primary AC pump fails due to power outages
• Fully solid state automatic 10A charger/controller with alarm, light indicator and warning system

Zoeller

• Package contains: Controller, charger, two dual micro reed float switches, primary pump and backup pump, instruction manual (battery and acid sold separately)
• Back-up starts immediately after loss of power or if flow of water is too great for the AC pump alone
• Back-up features unique monitoring systems to diagnose problems and sound an alarm
• Compact, fits in pits as small as 12-Inch in diameter.

THE BASEMENT WATCHDOG

• 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

THE BASEMENT WATCHDOG

• 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

• 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

• 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

• 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

• 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 (5.5 Amps Max each)
• Can be used as a power inverter for many applications requiring backup power

Raybend