---
product_id: 3715347
title: "WAYNE ESP25 12 Volt Battery Back-Up Sump Pump System with Audible Alarm"
brand: "wayne"
price: "€ 1107.23"
currency: EUR
in_stock: true
reviews_count: 2
url: https://www.desertcart.com.cy/products/3715347-wayne-esp25-12-volt-battery-back-up-sump-pump-system
store_origin: CY
region: Cyprus
---

# 12V battery-powered backup 3300 GPH high flow rate Audible alarm for instant alerts WAYNE ESP25 12 Volt Battery Back-Up Sump Pump System with Audible Alarm

**Brand:** wayne
**Price:** € 1107.23
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay worry-free with Wayne’s backup power!

## Quick Answers

- **What is this?** WAYNE ESP25 12 Volt Battery Back-Up Sump Pump System with Audible Alarm by wayne
- **How much does it cost?** € 1107.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/3715347-wayne-esp25-12-volt-battery-back-up-sump-pump-system)

## Best For

- wayne enthusiasts

## Why This Product

- Trusted wayne brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Audible Alarm:** Stay informed instantly when backup activates—never miss a beat.
- • **Compact & Easy Install:** Fits smaller pits with minimal plumbing changes—professional-grade convenience.
- • **Powerful 3300 GPH Pump:** Effortlessly handles heavy water flow to protect your home.
- • **Corrosion-Resistant Build:** Durable thermoplastic ensures long-lasting, maintenance-free performance.
- • **Reliable Battery Compatibility:** Works seamlessly with 40 or 75 AMP hr batteries for extended backup power.

## Overview

The WAYNE ESP25 is a 12-volt battery backup sump pump system designed to deliver 3300 gallons per hour at 10 feet lift. Featuring corrosion-resistant thermoplastic construction, a smart audible alarm, and LED indicators, it ensures homeowners are instantly alerted when backup power activates. Compatible with 40 or 75 AMP hour batteries (not included), this compact system fits smaller pits and installs easily without major plumbing changes. Backed by a 2-year limited warranty, it’s a reliable safeguard against basement flooding.

## Description

Product Description               ESP25 is a 12 volt battery back-up sump system with a high flow pump, smart charging technology, audible alarm, and led indicator lights to inform homeowner when the back-up system has been activated and the charge status of the battery.                  From the Manufacturer               The Wayne reinforced thermoplastic battery backup system pumps up to 3300-gallons per hour. The Reed float switch design will operate the pump with minimal travel area to fit in smaller pits reducing float switch hang ups. The professional grade back-up system keeps the battery properly charged. Comes equipped with an alarm which alerts the homeowner when the back-up system is active. The ESP25 backup sump pump system is designed for easy installation without any major plumbing changes.

## Features

- *Discontinued. New and upgraded ESP25 available underneath bullet points.
- 3300-Gallons per hour at 10-feet of lift. Recommended for use with the WAYNE WSB1275, 75 AMP hr maintenance free battery
- 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.Battery not included
- 2-year limited warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Wayne |
| Color | Black |
| Material | Plastic |
| Style | ESP25 battery backup system (old version) |
| Product Dimensions | 7.25"L x 5"W x 10"H |
| Power Source | Battery Powered |
| Item Weight | 12.9 Pounds |
| Maximum Lifting Height | 20 Feet |
| Voltage | 100 Volts |
| Horsepower | 1.00 |
| Global Trade Identification Number | 00040066207524 |
| Manufacturer | Wayne |
| UPC | 040066207524 |
| Part Number | ESP25 |
| Item Weight | 12.9 pounds |
| Item model number | ESP25 |
| Is Discontinued By Manufacturer | No |
| Size | 3300 Gallon Per Hour |
| Pattern | Pump |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Warranty Description | 2 Years - Parts Only |

## Product Details

- **Brand:** Wayne
- **Color:** Black
- **Material:** Plastic
- **Style:** ESP25 battery backup system (old version)
- **Product Dimensions:** 7.25"L x 5"W x 10"H
- **Power Source:** Battery Powered
- **Item Weight:** 12.9 Pounds
- **Maximum Lifting Height:** 20 Feet
- **Voltage:** 100 Volts
- **Horsepower:** 1.00

## Images

![WAYNE ESP25 12 Volt Battery Back-Up Sump Pump System with Audible Alarm - Image 1](https://m.media-amazon.com/images/I/81GDzOHMTML.jpg)
![WAYNE ESP25 12 Volt Battery Back-Up Sump Pump System with Audible Alarm - Image 2](https://m.media-amazon.com/images/I/81IDupR2wDL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Is it ok to connect to the primary pumps PVC before the check valve, eliminating the need for 2 check valves?**
A: No, you need a check valve for each pump. This happened to my sump pump installation: Over time, the flapper (acts like the valve) in the check valve deformed a little, detached from its hinge point(s), and ended up in the FRONT part of the body. This meant that when water was being pumped out of the sump, the water forced the flapper into the check valve opening... BLOCKING the flow! The check valve ended up working backwards, basically. With the water unable to flow, after enough time, the sump pump burned itself out. If two pumps are feeding through just one check valve, the same thing could happen to both pumps. Each pump needs its own check valve. It's OK for the discharge lines to merge afterwards. BTW: If you really depend of a reliable sump pump installation, spend the extra $30-$50 bucks and get a couple of industrial-strength check valves (regardless if you have a single or double-pump system). They will be "out of sight and out of mind" parts of your installation; you need to KNOW that they'll last!

**Q: What size pvc pipe goes into the single fitting at the top of the unit,and what method are you using to attach it? Thanks**
A: I glued a three-foot section of 1-1/2" PVD pipe to the wye-fitting at the top of the pump assemble. At the top of the three-foot section I used an 1-1/2" Fernco rubber coupler with stainless steel clamps to connect it to the drain line. You're going to love this pump. It's the quietest pump I've ever heard.

**Q: Can anyone please recommend a battery to purchase for this unit?**
A: I installed a VMAX 127 deep cell battery.  It provides between 36-48 hours of pumping capacity.  Cost ~$300.  I recommend you don't go cheap on the battery.

**Q: does this pump come with a battery**
A: The pump does not come with a battery.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Water pumping when you need it, if it will fit!
*by E***Y on April 14, 2020*

Our basement must have been built in the path of an underground stream. After a big rain, water will continue to come into the sump for several days after the end of the rain. Basement flooding is a certainty if the sump pump isn't working. So AC power, or no AC power the sump pump must continue to run!The AC-powered pump component is typical of good quality flooded pumps, powerful and quiet. But it is the DC-powered backup pump that sets this unit apart. We've had other DC-powered backup pumps, but they typically fell short. We have about a 7-foot lift between the top of the sump and the ground surface where the water is discharged. The other backup pumps would run, but strain to remove the water. Not so this pump. The backup pump design is very similar to the primary AC-powered pump and takes only about 30 seconds to empty an 18" round 30" deep sump against that 7-foot (minimum) head. In a recent test following a 4" rainfall event, the backup pump was needing to empty the sump about every 3 minutes during the peak drainage. It ran on battery power (admittedly off a 100-amp-hour AGM battery) all day and through the night without any visible drop in the battery voltage until there was no more water to be pumped.With one caveat, installation is easy, primarily because the plumbing interconnecting the two pump units is built-in. The caveat is that the base of the unit is massive, with the two pumps mounted side-by-side (instead of vertically as many of the lighter-duty units are). We have an 18" circular sump and it just barely fit - in part because while 18" was ample for the center of the unit, the corners just barely fit.We did make one alteration. We are charging our battery using a high quality, stand-alone charger. Why? The main limitation on battery life is likely to be how it is charged (or, if things don't go right, overcharged). The built-in charger may be OK, but given the cost of the battery, we thought investment in a computerized low-amperage charger was a reasonable one. The good news is that the pump control electronics built into the battery box work fine with the AC charger cable detached. The charger type makes no difference when the backup sump pump is actually running, because, by definition, the AC power will be off at that point anyway.Given its solid design and construction, and that it seems to do the needed pumping with little evidence of effort, I'm expecting this unit to keep us dry for many years .

### ⭐⭐⭐⭐⭐ Great pump, would recommend to friends so far.
*by A***G on June 8, 2016*

Quite the impressive setup. The main pump is the same high quality pump that you can buy standalone on amazon, and is ultra silent (inaudible besides the sound of rushing water) and powerful. The backup pump is a smaller plastic DC pump but appears to do a good, albeit slower, job pumping. Each pump has a check valve attached right to the output and the backup pump float is already mounted on the Y pipe. All you need to do is set the pump in your pit and hook up the Y pipe to the existing pipe.You do not need the special Wayne battery to put in the battery case. Go to your local fleet/farm store with the empty battery case and find any maintenance-free AGM battery that fits (check that the cover fits as well). I found a Road Runner model AGM27 92 Ah battery for cheaper than the 75 Ah Wayne one here on Amazon and with a better warranty (36 month warranty and 18 month replacement). The battery case comes with industry standard bolt-down connectors.So far the only downside so this setup is that the alarm on the battery box has no test button and no silence button. Its still easy to test by unplugging and filling the sump hole up with water, but there is no way to silence the alarm when its in backup mode.Some tips when putting in the new pump: since you need to glue a pipe into the Y-connector, don't glue the new pipe to the existing pipe. Instead use a 1.5" rubber connector with screw tighteners ($2-$3). This will allow you to remove the whole pump assembly in a jiffy should something happen. Also, do yourself a favor and clean out the bottom of your sump pit with a shop vac if you have the plastic bottom pit type. Mine was full of sand that had come in through the holes. This isn't an issue for the main pump since it doesn't pull water in through the bottom. However, the backup pump sucks in water through the bottom and probably wouldn't last as long if it had to suck up sand and other debris.

## Frequently Bought Together

- WAYNE ESP25 12 Volt Battery Back-Up Sump Pump System with Audible Alarm
- PumpSpy Silent Check Valve - 1-1/2" with Buna-N Couplings, Model CV-150, Spring-Loaded Flapper, Sump Pump Life Expectancy Increase, Includes Steel Clamps Fit 1-1/2″ Pipe
- Amazon Basics 100-Pack AA Alkaline High-Performance Batteries, 1.5 Volt, 10-Year Shelf Life

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-11*