10 Best Sump Pump Battery Back Up of 2026

Last updated on 04/14/2026
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Best Choice
1
9.8
Exceptional
The Basement Watchdog Big Combo CONNECT Preassembled Primary & Battery Backup Sump Pump System - WiFi-Capable w/Add-on Module (CITS-50)
THE BASEMENT WATCHDOG

The Basement Watchdog Big Combo CONNECT Preassembled Primary & Battery Backup Sump Pump System - WiFi-Capable w/Add-on Module (CITS-50)

Why we love it
  • Saves money on electric bills.
  • High pumping capacity options available.
  • WiFi monitoring for easy maintenance.
Main Highlights
  • ½ 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-hour-a-day monitoring of pump, power and battery conditions; backup controller will sound an alarm, illuminate a warning light and describe what to do for easy maintenance
  • Allows for connection to a Basement Watchdog CONNECT Module (BW-WiFi—a SEPARATE PURCHASE), giving you real-time alerts via text, email, push notification or through the Basement Watchdog free app
  • Provides days of intermittent pumping power on a single battery charge and is compatible with both maintenance-free AGM and wet-cell batteries. Connect two batteries in parallel for double the runtime.
9.8
Exceptional
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Best Value
2
9.7
Exceptional
2000 Watt sump pump backup battery system, automatic switchover to battery inverter power, professional backup system in case of power failure, pure sine wave output Remote controller with LCD screen
VIOPUMPO

2000 Watt sump pump backup battery system, automatic switchover to battery inverter power, professional backup system in case of power failure, pure sine wave output Remote controller with LCD screen

Why we love it
  • Pure sine wave ensures safety.
  • Fast, efficient battery charging.
  • Comprehensive protective features included.
Main Highlights
  • 【Continuous Power】 Pure Sine Wave 2000W Sump Pump Battery Backup System: The output of this system is a completely pure sine wave alternating current (AC) that produces a seamless, grid-like power output that is highly resistant to interference, can drive any type of load (resistive and inductive loads), has the highest conversion efficiency, and the lowest losses, and is therefore safer for all types of loads. Safety.
  • 【Charging Mode】The 2000W sump pump backup battery system has a built-in 25A battery charger, which supports fast charging and trickle charging for all types of batteries, and is suitable for deep-cycle lithium batteries, AGM batteries, and other deep-cycle battery types, but is not applicable to non-deep-cycle batteries. In addition, the sump pump backup battery has an overcharge protection function, your battery will not be damaged in any way, thus greatly extending the life of the battery.
  • 【Safety in Use】The Viopumpo sump pump battery backup system is equipped with a high-definition LCD remote control that allows you to clearly see the voltage, power and battery charge status. It also has a built-in cooling system and overload protector, as well as multiple protection functions such as overheat protection, short circuit protection, low voltage protection, overcharge protection, etc., which not only improves the safety of use, but also extends the service life of the device.
  • 【Easy Installation】 - Our sump pump backup battery system requires no additional wiring, just assemble the AC and DC cables and plug the sump pump into the product's AC socket. Multiple fixing options, the fixing holes on the side allow you to lay it flat or wall mount it.
  • 【Warranty】 You will receive the Viopumpo 2000W 12V sump pump spare power converter, cable, remote control and user manual. We offer a 12 month warranty on every order. If you have any questions, please contact us via e-mail!
9.7
Exceptional
Amazon Logo
3
9.7
Exceptional
The Basement Watchdog Combo Preassembled Primary & Battery Backup Sump Pump System w/Monitoring Controller (CITE-33)
THE BASEMENT WATCHDOG

The Basement Watchdog Combo Preassembled Primary & Battery Backup Sump Pump System w/Monitoring Controller (CITE-33)

Why we love it
  • Easy installation for everyone.
  • Energy-efficient pump saves money.
  • Reliable backup system for peace.
Main Highlights
  • System comes preassembled and preplumbed so that installation is simple and quick
  • 1/3 HP energy-efficient permanent split capacitor (PSC) primary pump can save money on your electric bills
  • Primary pump capacity 3,100 GPH at a 10 ft. lift and 3,720 GPH at 0 ft. lift
  • Backup system capacity 1,000 GPH at 10 ft. lift and 2,000 GPH at 0 ft. lift
  • Includes emergency battery backup sump pump system with 24 hour a day monitoring controller
  • Dual float switches on both the primary and backup sump pump systems provide 4x the protection
  • Provides days of intermittent pumping power on a single battery charge
  • Fluid sensor monitors fluid level of the battery
  • 0.4 Amp charger is compatible with Basement Watchdog wet cell and maintenance-free AGM batteries
  • Compact design fits in pits with diameters as small as 12 in.
9.7
Exceptional
Amazon Logo
4
9.6
Superb
WAYNE - 1/2 HP Sump Pump with Integrated Vertical Float Switch and 12 Volt Battery Back Up Capability, Battery Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty Basement Sump Pump System
Wayne

WAYNE - 1/2 HP Sump Pump with Integrated Vertical Float Switch and 12 Volt Battery Back Up Capability, Battery Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty Basement Sump Pump System

Why we love it
  • Keeps basements dry effortlessly.
  • Quick and easy installation.
  • Durable and reliable performance.
Main Highlights
  • Indoor Use Only: This 1/2 HP WAYNE indoor sump system is perfect to keep your basement or indoor area dry during heavy water flow, even if you lose electricity; whether it’s rain, snow melting or more, WAYNE model WSS30VN can keep your basement dry
  • Back-Up Ready: WSS30VN will pump up to 5,100 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: Comes preassembled and ready for drop-in for easy installation in 15 minutes or less with no need to drill a weep hole; fits in 16” diameter or larger sump basins
  • Additional Features: The system has been tested to 1 million cycles for long-lasting use; comes with 8-foot SJTW power cord
  • Quality You Deserve: Proudly assembled in the USA for quality you can trust; warrantied for 3 years for dependable, efficient, & ultra-quiet performance
9.6
Superb
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5
9.5
Superb
Save 14%
2500 Watt Sump Pump Battery Backup System, Pure Sine Wave Output, Professional Backup System in The Event of a Power Outage, Remote Controller with LCD Screen, Automatic Grid and Battery Switchover
VIOPUMPO

2500 Watt Sump Pump Battery Backup System, Pure Sine Wave Output, Professional Backup System in The Event of a Power Outage, Remote Controller with LCD Screen, Automatic Grid and Battery Switchover

14% Off
Why we love it
  • Reliable power during outages.
  • Comprehensive safety features included.
  • User-friendly installation process.
Main Highlights
  • ☀【Excellent Performance 】The Viopumpo 2500 Watt Sump Pump Backup Battery System is a professional backup system in case of a power outage, featuring pure sine wave output, 2500 watts of powerful power output, 25A operating current and 3 AC outputs to support multiple sump pumps at the same time. Even in the event of a rainy day power outage, it will automatically switch to battery power to keep your sump pumps working. Trust Viopumpo to keep your basement safe and dry around the clock! (Note: This power converter works with batteries, which must be purchased separately).
  • ☀ 【Safe Design】 The Viopumpo sump pump backup power converter comes with a high-definition LCD remote control that gives you a clear view of voltage, power and battery charge status. It also comes with three grounded outlets, a 5V/3.1A USB port and a 30W TYPE-C port for use with a variety of appliances. It also has a built-in cooling system and a self-recovery overload protector, as well as multiple protection functions such as overheating, short-circuit, low-voltage and overcharge protection.
  • ☀ [Adjustable Input Voltage Function for Battery Types] - The Viopumpo 2500 Chassis Pump Backup Power Inverter has an adjustable input voltage function (9.5V-11V), making it more compatible with lithium batteries. This feature reduces battery consumption, protects battery health and extends battery life. (Please note that you must adjust the voltage when the inverter is off).
  • ☀【Easy Installation】 The Viopumpo sump pump backup battery system requires no additional wiring and can be easily operated by simply assembling the AC and DC cables together. A variety of fixing options are available and the fixing holes on the side allow for flat or wall mounting.
  • ☀ 【After-sales Warranty】 You will get the Viopumpo 2500W 12V Sump Pump Backup Power Inverter, cables, remote control and user manual. We provide 12 months warranty for each order. If you have any questions, please contact us by email!
9.5
Superb
Save 14%
Amazon Logo
6
9.3
Superb
1500W Sump Pump Battery Backup System, Pure Sine Wave Inverter Charger with 25A Fast Charging, Auto Transfer Switch for Basement Flood Protection During Outages, LCD Remote, 12V Deep Cycle Compatible
OLTEANP

1500W Sump Pump Battery Backup System, Pure Sine Wave Inverter Charger with 25A Fast Charging, Auto Transfer Switch for Basement Flood Protection During Outages, LCD Remote, 12V Deep Cycle Compatible

Why we love it
  • Reliable basement flood protection.
  • Fast charging for battery types.
  • User-friendly remote with display.
Main Highlights
  • 【Essential Basement Flood Protection During Power Outages】:Keep your basement dry during heavy rain, storms, and unexpected blackouts. This 1500W sump pump battery backup system automatically switches from grid power to battery power, ensuring uninterrupted sump pump operation and continuous water removal. Ideal for homeowners in flood-prone areas and finished basements.
  • 【Reliable Emergency Backup Power Solution (Battery Not Included)】: Acts as a dependable emergency backup source for primary sump pump systems. When utility power fails, it instantly transfers to 12V deep-cycle battery power (battery required, not included) and automatically recharges when power is restored. Compatible with LiFePO4, AGM, GEL, and Flooded deep-cycle batteries.
  • 【Built-in 25A Smart Charger with Multi-Layer Protection】: Equipped with a high-efficiency 25A multi-stage charger to optimize battery performance and extend battery lifespan. Features overcharge, overload, short circuit, low voltage, and overheat protection to ensure safe operation during storm season and emergency situations.
  • 【1500W Pure Sine Wave Output – Safe & Stable Performance】: Provides clean and stable pure sine wave power to run standard residential sump pumps smoothly while protecting sensitive components. Includes 3 AC outlets, USB port, and Type-C port to power essential devices during outages.
  • 【LCD Remote Monitoring & Easy Installation】:Comes with a remote controller featuring an LCD display for real-time monitoring of battery voltage, load level, and operating mode. Supports wall mounting or flat placement with simple AC and DC connections. Trusted by homeowners, landlords, and property managers focused on home safety and emergency preparedness.
  • 【WHAT YOU GET 】: Includes 1 × 1500W Pure Sine Wave Inverter (Battery Not Included), 1 Pair of Battery Cables, 1 × UPS Plug, and User Manual. Designed for long-term reliability and backed by a 12-month warranty with 24/7 professional customer support. Whether you're preparing for storm season or installing a basement flood protection system, our team is ready to provide real solutions whenever you need assistance.
9.3
Superb
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7
9.2
Superb
1500W Sump Pump Battery Backup System, Pure Sine Wave Power Inverter with Charger, Backup System for Power Outage, LCD Screen Remote Controller, Automatic Switching for Grid and Battery
ZETAWALE

1500W Sump Pump Battery Backup System, Pure Sine Wave Power Inverter with Charger, Backup System for Power Outage, LCD Screen Remote Controller, Automatic Switching for Grid and Battery

Why we love it
  • Reliable protection against flooding.
  • Fast battery charging capabilities.
  • User-friendly remote monitoring feature.
Main Highlights
  • 【Designed for Basement Protection】- ZETAWALE 1500W sump pump battery backup system are designed for basements to protect your home from flooding, When the power supply is normal, the pump is powered and charged automatically. When the power supply is cut off, it switches to battery power automatically, ensuring that your sump pump system operates smoothly and continuously. Whether it's a hurricane or heavy rain, the OLTEANP sump pump battery backup system can keep your basement dry at all times.
  • 【25A Battery Charger & 12ms Auto Switch Time】- 12V 1500W ZETAWALE Sump Pump Battery Backup System has built-in 25A battery charger, supports quick charging, trickle charging for various battery types, suitable for deep cycle lithium batteries, AGM batteries and other deep cycle battery types. Not suitable for non-deep cycle batteries. In addition, the sump pump battery backup has overcharge protection, your battery will not be damaged in any way, extending your battery life.
  • 【Remote Control with Real-time Display】- ZETAWALE sump pump battery backup power supply comes with a 14.76ft wired LCD screen remote control. You can monitor the real-time voltage, power and battery charging status on the LCD display at any time. It has a built-in cooling system and overload protector, as well as multiple protection functions, including overheating, short circuit, low voltage, overcharge protection, etc.
  • 【1500W Output - Continuously Power Your Sump Pump】- The sump pump battery backup system output power is up to 2000 Watt. when the AC power fails, it switches to battery power and instantly recharges when the power comes back on. It has 3 AC U.S. Outlets and 5V/3.1A USB charge port and 30W Type-C Port.It can power up to 3 main sump pumps simultaneously during a power outage, saving you valuable time and costs.
  • 【Widely Applicable and Easy to Install】- The ZETAWALE sump pump backup battery system requires no additional wiring, just assemble the AC and DC cables and plug the sump pump into the product's AC outlet.In addition, as a pure sine wave power inverter, it can also be used to operate various electrical equipment that require backup power.This inverter doesn't come with battery, A 12V deep cycle battery is required for backup power operation.
9.2
Superb
Amazon Logo
8
9.0
Superb
VEVOR 2000W Sump Pump Battery Backup with LCD, Automatically Shifts to Inverter Power Ensuring Uninterrupted Operation, Essential for Emergencies & Power Failures
VEVOR

VEVOR 2000W Sump Pump Battery Backup with LCD, Automatically Shifts to Inverter Power Ensuring Uninterrupted Operation, Essential for Emergencies & Power Failures

Why we love it
  • Unmatched power for reliable operation.
  • Real-time display for informed decisions.
  • Quick installation ensures safety.
Main Highlights
  • Unmatched Power: The VEVOR sump pump battery backup inverter features a robust 2000W output, 18.2A operating current, and dual outlets, ready to support two sump pumps at once. Even if the power goes out on a rainy day, it automatically switches to battery power to keep your sump pump working. Trust VEVOR to keep your basement secure and dry around the clock!
  • Real-Time Display: Stay informed and in control with the VEVOR sump pump battery backup system's real-time display feature! With a cutting-edge high-definition LCD screen and LED indicator lights, you can instantly monitor vital information such as voltage, power, battery level, and more. Enjoy confident and informed decision-making every step of the way!
  • Quick Plug Feature: Say goodbye to cumbersome and unsafe wiring connections! Our inverter for sump pump features a convenient 3-Pin plug design, ensuring a quick and secure installation. Not only does this avoid incorrect wiring that could damage your equipment, but it also reduces security risks, providing you with peace of mind and hassle-free operation.
  • Security Comes First: Experience peace of mind with sump pump backup battery's multi-layered security protection. From start to finish, we've got you covered, blocking potential hazards and providing reliable protection against any unforeseen risks, such as overload protection, short circuit protection, overcharge protection, overvoltage protection, overheat protection, and circuit breaker.
  • Lightning Fast Charging: With a 20A charging current, you won't be stuck waiting around. Our VEVOR sump pump battery backup power supply charges your 100AH battery in just about 5 hours – that's four times faster than a 5A charger. Get back up and running in no time with our lightning-fast charging technology.
9.0
Superb
Amazon Logo
9
8.9
Excellent
VEVOR 2500W Sump Pump Battery Backup System, LCD Display, Auto Switches to Battery Inverter Power for Sump Pump, Pure Sine Wave, for Basement Protection Emergency and Power Outage, Battery Not Include
VEVOR

VEVOR 2500W Sump Pump Battery Backup System, LCD Display, Auto Switches to Battery Inverter Power for Sump Pump, Pure Sine Wave, for Basement Protection Emergency and Power Outage, Battery Not Include

Why we love it
  • Powerful 2500W sine wave output.
  • Easy 3-prong plug setup.
  • LCD shows status clearly.
Main Highlights
  • Outstanding Performance: This sump pump battery backup system delivers 2500W pure sine wave output, supporting dual-pump operation (1 HP main + 1/3 HP backup). Includes a USB port and AC outlet, ideal for emergency use and a home prone to heavy rainfall
  • Quick Plug-In Setup: Say goodbye to risky wiring. This sump pump battery backup inverter features a standard 3-prong plug for quick and secure installation. It reduces errors and electrical hazards. Just plug in, and you're ready
  • Battery-Friendly Charging: Equipped with 3-stage charging (Bulk, Absorption, Float), this basement protection sump pump inverter automatically optimizes battery performance and service life. Compatible with 12V Lead-acid, AGM, Gel, and LiFePO4 batteries
  • Real-Time Display: Stay informed with an LCD screen and LED indicators. This pure sine wave power inverter allows you to monitor voltage, battery level, and working status easily. Control with confidence
  • Security Comes First: Designed with security in mind, this back up system for emergency includes built-in protection against overcurrent, overvoltage, short circuit, reverse polarity, and high temp. A circuit breaker adds another layer of safeguards
8.9
Excellent
Amazon Logo
10
8.7
Excellent
The Basement Watchdog Maintenance Free (AGM) Standby Battery for Backup Sump Pumps (BW-27AGM)
THE BASEMENT WATCHDOG

The Basement Watchdog Maintenance Free (AGM) Standby Battery for Backup Sump Pumps (BW-27AGM)

Why we love it
  • Maintenance free and convenient.
  • Long-lasting protection for pumps.
  • Compatible with older systems.
Main Highlights
  • 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, CITS-50)
  • 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, CITE-33)
  • Runs various Basement Watchdog sump pump systems intermittently for days
  • Older versions, purchased before 2014 of the Basement Watchdog Special, Basement Watchdog Big Dog and Basement Watchdog Big Combo systems that include the Remote Terminal are compatible with the Basement Watchdog Maintenance Free/AGM Battery. Using a maintenance free battery with an older non-compatible system may cause false alarms.
8.7
Excellent
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Related Deals You Might Like for Sump Pump Battery Back Up

📊We scanned 1120 products
🔍
We reviewed the most relevant Sump Pump Battery Back Up offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like THE BASEMENT WATCHDOG, VIOPUMPO, Wayne, OLTEANP, ZETAWALE, VEVOR, known for dependable quality and smart design.
⭐
To determine today's best Sump Pump Battery Back Up, we analyzed 5601 real customer and expert reviews, focusing on satisfaction, real-world performance and long-term reliability. We also weigh each review's relevance, authenticity and freshness for a fair comparison.

Here's what we found:

🏆 #1
The Basement Watchdog Big Combo CONNECT Preassembled Primary & Battery Backup Sump Pump System - WiFi-Capable w/Add-on Module (CITS-50)

Our overall winner is The Basement Watchdog Big Combo CONNECT Preassembled Primary & Battery Backup Sump Pump System - WiFi-Capable w/Add-on Module (CITS-50) by THE BASEMENT WATCHDOG. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓Saves money on electric bills.
✓High pumping capacity options available.
✓WiFi monitoring for easy maintenance
💎 Best Value
2000 Watt sump pump backup battery system, automatic switchover to battery inverter power, professional backup system in case of power failure, pure sine wave output Remote controller with LCD screen

The best value for most shoppers is 2000 Watt sump pump backup battery system, automatic switchover to battery inverter power, professional backup system in case of power failure, pure sine wave output Remote controller with LCD screen by VIOPUMPO, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
2500 Watt Sump Pump Battery Backup System, Pure Sine Wave Output, Professional Backup System in The Event of a Power Outage, Remote Controller with LCD Screen, Automatic Grid and Battery Switchover

The strongest deal right now for Sump Pump Battery Back Up is 2500 Watt Sump Pump Battery Backup System, Pure Sine Wave Output, Professional Backup System in The Event of a Power Outage, Remote Controller with LCD Screen, Automatic Grid and Battery Switchover at VIOPUMPO, currently at 14% off.

🔄Our Sump Pump Battery Back Up ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.