--- product_id: 81568418 title: "12 Volt Battery Back Up Sump Pump" brand: "wayne" price: "3929.22 DT" currency: TND in_stock: true reviews_count: 11 url: https://www.desertcart.tn/products/81568418-12-volt-battery-back-up-sump-pump store_origin: TN region: Tunisia --- # 12V battery-powered backup Up to 2,700 GPH flow rate Epoxy-coated steel & cast iron durability 12 Volt Battery Back Up Sump Pump **Brand:** wayne **Price:** 3929.22 DT **Availability:** βœ… In Stock ## Summary > πŸ’§ Stay dry, stay worry-free β€” backup power that never quits! ## Quick Answers - **What is this?** 12 Volt Battery Back Up Sump Pump by wayne - **How much does it cost?** 3929.22 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/81568418-12-volt-battery-back-up-sump-pump) ## 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 - β€’ **Built to Last:** Epoxy-coated steel housing and cast iron base resist corrosion and wear - β€’ **Smart Protection:** LED display and audible alarm alert you to any issues instantly - β€’ **Perfect Fit & Quiet:** Fits 14”+ sump basins with no drilling needed, ultra-quiet operation - β€’ **High-Capacity Pumping:** Removes up to 10,000 gallons on a single charge with 2,700 GPH max flow - β€’ **Power Through Outages:** 12 Volt battery backup keeps your basement dry when the grid goes down ## Overview The WAYNE ESP25n is a heavy-duty 12 Volt battery backup sump pump designed for indoor use to protect basements during power outages. It delivers up to 2,700 gallons per hour and can evacuate 10,000 gallons on a single battery charge (battery sold separately). Featuring a corrosion-resistant epoxy-coated steel housing, cast iron base, and a thermoplastic impeller, it ensures durability and efficient water flow. The unit fits sump basins 14 inches or larger without modifications and includes a protective battery case with LED and audible alerts. Proudly assembled in the USA, it comes with a 2-year warranty for reliable, quiet performance. ## Description The Wayne ESP25 upgraded battery back up system protects your basement when the power is out. Assembled in the us, the epoxy coated steel and cast iron construction is built to last, while moving up to 2700 gph at 0 feet of head. Battery box dimensions: 9"H X 13"W X 7"L Review: Worth the money and effort for peace of mind - Easy to install and works as expected. I left my primary pump unplugged and only used the back up pump, and it had no problems keeping up with the incoming water. Much improved, redesigned pump, as compared with the previous Wayne ESP25 pump this replced. The old back up pump was replaced after 9 years just as maintenance, but it was still operational. Review: Excellent Back-Up Pump - After research, this was our choice for a back-up pump to our Zoeller M53 main pump and, after installation and use, we are happy with it and recommend it. For back-up pumps, it looks like there are 4 choices: - This Wayne pump WSB1275 - PumpSpy PS2000 - Cheaper, low flow back-ups - Local pumps (eg, Trusty Warns) sold by plumbing companies, costing ~$1400 The local pump option was too spendy and there's no logic in buying a back-up pump that is tiny and has low output - the flow rate from the back-up should be similar to the main pump - if the power goes out and the back-up kicks in, it would be a travesty if it can't keep up and water flows out of the bucket. The PumpSpy is a larger pump with higher than typical flow rate (eg, 2400 gph @ 10' head) and it connects to WiFi to and will send an e-mail when it engages. The Wayne pump flow rate (1680 gph @ 10' head) is similar to our good Zoeller M53 pump (2000 gph @ 10' head) but doesn't connect to Wifi. Getting an e-mail when the pump kicks in would be nice but it's not that important to us. And, the over $200 difference between those two pumps is in Wayne's favor. Some things about this Wayne WSB1275 pump: - The float is not attached to the pump and this independence allows for the float to be installed at the right elevation. The pump is on a cord that connects to the controller. - When the float activates the pump, the pump runs for 20 seconds then shuts off. So, the float needs to be installed high enough so the pump runs for about 20 seconds to prevent the pump from running dry. This takes some finagling and trial/error to figure out. Also, it's nice to be able to position the float away from anything it could get stuck on, like the ribbed plastic sump basket or the other pump. - The alarm isn't overly loud and only engages for about 2 seconds when the pump starts. I saw another review where the person said the alarm was too loud. I think it's too quiet and that it should run longer. We can hear it upstairs, just if the furnace fan is running it can drowned out. - I had a large marine battery from my former custom system and was able to use that with this, so that was nice. Overall, I really like it. The pump is solid, the float works well, and it's simple in a nice way. ## Features - Indoor Use Only - This 12 Volt WAYNE basement battery backup sump pump is perfect to keep your basement dry during heavy water flow when you lose electricity. Whether it’s rain, snow melting, etc. WAYNE model ESP25n can keep your basement dry. - Back-Up Ready - ESP25N will pump up to 2,700 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 - Fits in 14” diameter or larger sump basins, with no need to drill a weep hole - Additional Features - Epoxy-coated steel housing with a cast-iron base. Corrosion-resistant thermoplastic impeller for maximum water flow. Protective battery case includes LED display and an audible alarm to let you know if there’s a problem. - Quality You Deserve - Proudly assembled in the USA for quality you can trust. Warrantied for 2 years for dependable, efficient, & ultra-quiet performance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07GJXRZ1V | | Best Sellers Rank | #178,659 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #821 in Water Pumps, Parts & Accessories | | Brand | Wayne | | Brand Name | Wayne | | Color | Black | | Customer Reviews | 4.4 out of 5 stars 336 Reviews | | Flow Rate | 45 Gallons Per Minute | | Global Trade Identification Number | 00040066218483 | | Included Components | Back up pump, battery box, reed float switch | | Item Dimensions L x W x H | 17"L x 10.5"W x 14"H | | Item Type Name | WAYNE ESP25 Upgraded 12-Volt Battery Backup System | | Item Weight | 13.5 Pounds | | Manufacturer | WAYNE | | Manufacturer Part Number | 58368-WYN1 | | Manufacturer Warranty Description | 2 year manufacturer | | Material | Cast Iron | | Material Type | Cast Iron | | Maximum Lifting Height | 10 Feet | | Model Number | ESP25 | | Power Source | Battery Powered | | Product Dimensions | 17"L x 10.5"W x 14"H | | Product Style | Back Up System | | Style | Back Up System | | UPC | 040066218483 | | Unit Count | 1.0 Count | | Voltage | 12 Volts | ## 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 ![12 Volt Battery Back Up Sump Pump - Image 1](https://m.media-amazon.com/images/I/61d7OHz+rxL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worth the money and effort for peace of mind *by M***C on January 11, 2026* Easy to install and works as expected. I left my primary pump unplugged and only used the back up pump, and it had no problems keeping up with the incoming water. Much improved, redesigned pump, as compared with the previous Wayne ESP25 pump this replced. The old back up pump was replaced after 9 years just as maintenance, but it was still operational. ### ⭐⭐⭐⭐⭐ Excellent Back-Up Pump *by M***M on March 30, 2019* After research, this was our choice for a back-up pump to our Zoeller M53 main pump and, after installation and use, we are happy with it and recommend it. For back-up pumps, it looks like there are 4 choices: - This Wayne pump WSB1275 - PumpSpy PS2000 - Cheaper, low flow back-ups - Local pumps (eg, Trusty Warns) sold by plumbing companies, costing ~$1400 The local pump option was too spendy and there's no logic in buying a back-up pump that is tiny and has low output - the flow rate from the back-up should be similar to the main pump - if the power goes out and the back-up kicks in, it would be a travesty if it can't keep up and water flows out of the bucket. The PumpSpy is a larger pump with higher than typical flow rate (eg, 2400 gph @ 10' head) and it connects to WiFi to and will send an e-mail when it engages. The Wayne pump flow rate (1680 gph @ 10' head) is similar to our good Zoeller M53 pump (2000 gph @ 10' head) but doesn't connect to Wifi. Getting an e-mail when the pump kicks in would be nice but it's not that important to us. And, the over $200 difference between those two pumps is in Wayne's favor. Some things about this Wayne WSB1275 pump: - The float is not attached to the pump and this independence allows for the float to be installed at the right elevation. The pump is on a cord that connects to the controller. - When the float activates the pump, the pump runs for 20 seconds then shuts off. So, the float needs to be installed high enough so the pump runs for about 20 seconds to prevent the pump from running dry. This takes some finagling and trial/error to figure out. Also, it's nice to be able to position the float away from anything it could get stuck on, like the ribbed plastic sump basket or the other pump. - The alarm isn't overly loud and only engages for about 2 seconds when the pump starts. I saw another review where the person said the alarm was too loud. I think it's too quiet and that it should run longer. We can hear it upstairs, just if the furnace fan is running it can drowned out. - I had a large marine battery from my former custom system and was able to use that with this, so that was nice. Overall, I really like it. The pump is solid, the float works well, and it's simple in a nice way. ### ⭐⭐⭐⭐⭐ Nice setup that's at a nice price. *by J***E on December 27, 2021* Easy to setup, wire-up, and get into place. Was a little-bit of a tight fit with both pumps in my pit, but they fit together facing opposite directions. These pumps are quiet, fast, and after 3 months, reliable. Battery backup has been tested a few times manually, and still seems to work well. I'm very comfortable with the setup. It took about 20-30 minutes total to setup with a Y-joint pipe and check valve cutting a new pipe to join the two, and I zip-tied the float to the pipe and tested with a water pour to be sure it wouldn't snag or hesitate. The battery I used was Casil 100 AH Deep Cycle AGM CA121000 SLA Solar/RV battery for $185, which got top ratings and matched the terminal requirements. I Mated this kit to a Wayne CDU980E 3/4 HP pump using the PumpSpy Dual Pump Install Kit and a Raybend,"Silent" Sump Pump Check Valve, 1-1/2" that I had installed prior to hooking up the backup pump kit. Altogether, I spent about $820-$850, which is much less than the $1800 I was priced for a 1/2, 1/3 HP kit by a local plumber. Between the two pump installs, drilling and mods, and running 3 more drain lines that were never installed originally (Heater, tank, A/C condensation, and Humidifier) it took me about 60-70 minutes for all of the work, testing, and cable dressing. At $860 - $1000/hr for after-tax labor, it was well-worth my time, and surprisingly very easy to do. I may add pics later, if I have the time. Don't bother with the unsealed batteries, and the Li-ion's aren't worth the price, especially, as they cold pose a fire hazard in the humid environment you'll be using them in - unless you know the maker well and can trust the quality of the sealed system - especially since this charging system doesn't have the electronics to protect against surges or overcharging of Li-ion batteries. This system shouldn't go through enough cycles to make it worthwhile anyway. In fact, with the reliable power I have at my house, I really only need a standard 12V car or lawn-tractor battery, but it's worth the comfort of knowing this will last and have the capacity if the power goes out for awhile. ## 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/81568418-12-volt-battery-back-up-sump-pump](https://www.desertcart.tn/products/81568418-12-volt-battery-back-up-sump-pump) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-03*