---
product_id: 741604810
title: "WayneESP25 Upgraded 12-Volt Battery Backup System, Black"
price: "A$819"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/741604810-wayneesp25-upgraded-12-volt-battery-backup-system-black
store_origin: AU
region: Australia
---

# WayneESP25 Upgraded 12-Volt Battery Backup System, Black

**Price:** A$819
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** WayneESP25 Upgraded 12-Volt Battery Backup System, Black
- **How much does it cost?** A$819 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/741604810-wayneesp25-upgraded-12-volt-battery-backup-system-black)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

WayneESP25 Upgraded 12-Volt Battery Backup System, Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Wayne |
| Color | Black |
| Material | Cast Iron |
| Style | ESP25 battery backup system (upgraded version) |
| Product Dimensions | 17"L x 10.5"W x 14"H |
| Power Source | Battery Powered |
| Item Weight | 13.5 Pounds |
| Maximum Flow Rate | 45 Gallons Per Minute |
| Maximum Lifting Height | 10 Feet |
| Voltage | 12 Volts |
| Global Trade Identification Number | 00040066218483 |
| Manufacturer | WAYNE |
| UPC | 040066218483 |
| Part Number | 58368-WYN1 |
| Item Weight | 13.5 pounds |
| Item model number | ESP25 |
| Size | Black |
| Pattern | Pump |
| Item Package Quantity | 1 |
| Included Components | Back up pump, battery box, reed float switch |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 2 year manufacturer |

## Product Details

- **Brand:** Wayne
- **Color:** Black
- **Material:** Cast Iron
- **Style:** ESP25 battery backup system (upgraded version)
- **Product Dimensions:** 17"L x 10.5"W x 14"H
- **Power Source:** Battery Powered
- **Item Weight:** 13.5 Pounds
- **Maximum Flow Rate:** 45 Gallons Per Minute
- **Maximum Lifting Height:** 10 Feet
- **Voltage:** 12 Volts

## Images

![WayneESP25 Upgraded 12-Volt Battery Backup System, Black - Image 1](https://m.media-amazon.com/images/I/51a-o3wG+KL.jpg)

## 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.

## Frequently Bought Together

- Wayne ESP25 Upgraded 12-Volt Battery Backup System, Black
- Wayne WSB1275 75Ah Maintenance-Free Battery Recommended for Wayne ESP25, Wayne WSS30VN and Wayne Basement Guardian
- Wayne 58321-WYN3 CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel Sump Pump with Integrated Vertical Float Switch, Large, Silver

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**Shop now:** [https://www.desertcart.com.au/products/741604810-wayneesp25-upgraded-12-volt-battery-backup-system-black](https://www.desertcart.com.au/products/741604810-wayneesp25-upgraded-12-volt-battery-backup-system-black)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-12*