--- product_id: 599788249 title: "Extra Battery for Delta Pro Ultra&Delta Pro Ultra X, Lifepo4 Battery Backup for Home Use, Emergency, Camping, RV" brand: "ef ecoflow" price: "€ 4139.20" currency: EUR in_stock: true reviews_count: 9 category: "Ef Ecoflow" url: https://www.desertcart.sk/products/599788249-extra-battery-for-delta-pro-ultra-and-delta-pro-ultra store_origin: SK region: Slovakia --- # App-controlled plug & play 6144Wh expandable capacity EV-grade LFP cells & triple safety Extra Battery for Delta Pro Ultra&Delta Pro Ultra X, Lifepo4 Battery Backup for Home Use, Emergency, Camping, RV **Brand:** ef ecoflow **Price:** € 4139.20 **Availability:** ✅ In Stock ## Summary > 🔋 Power up your lifestyle—never get caught powerless again! ## Quick Answers - **What is this?** Extra Battery for Delta Pro Ultra&Delta Pro Ultra X, Lifepo4 Battery Backup for Home Use, Emergency, Camping, RV by ef ecoflow - **How much does it cost?** € 4139.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/599788249-extra-battery-for-delta-pro-ultra-and-delta-pro-ultra) ## Best For - ef ecoflow enthusiasts ## Why This Product - Trusted ef ecoflow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive Expandable Power:** Boost your DELTA Pro Ultra with an extra 6144Wh for unstoppable energy freedom. - • **Seamless Plug & Play Setup:** No tech hassle—just connect and control effortlessly via the EcoFlow app. - • **Unrivaled Safety Architecture:** Built with EV-grade LFP cells, dual BMS, and 3-level safety for peace of mind 24/7. - • **Sleek, Durable & Built to Last:** Heavy-duty lithium iron phosphate design with a 5-year warranty ensures long-term reliability. - • **Ultimate Backup for Home & Adventure:** Keep your fridge running for days, power your RV, or secure your rental property during outages. ## Overview The EF ECOFLOW Extra Battery for Delta Pro Ultra & Ultra X adds a massive 6144Wh capacity with advanced EV-grade LFP cells and triple-layer safety. Designed for effortless plug-and-play use and app monitoring, it’s perfect for home backup, camping, RVs, and emergency power. Weighing 111.8 lbs, it delivers up to 7200W output with a 5-year warranty, making it a reliable, expandable energy solution for modern professionals who demand uninterrupted power. ## Description desertcart.com : EF ECOFLOW Extra Battery for Delta Pro Ultra&Delta Pro Ultra X, Lifepo4 Battery Backup for Home Use, Emergency, Camping, RV : Patio, Lawn & Garden Review: I love my DPU EB - Our son is a huge ecoflow fan so he recommended for us to get the ecoflow delta pro ultra! He has an extra inverter so it turns out that all we needed to buy was the battery itself! It’s great since we got to save money instead of buying the whole system! The battery is very heavy but at 110lb or so we aren’t too old to move it quite yet! (In our 70s). Our son recommended us to use it to backup our refrigerator since we don’t yet have the smart panel installed so we can’t quite tie it into our home, and our HOA don’t allow for solar panels, but my son and I ran a test and this thing is running our refrigerator as we speak and it’s been two and half days! Still got around 7% left! It’s a game changer for retiree like myself because I travel a lot with my wife and often gone for weeks, so being able to back up my fridge for so long really gave me the peace of mind. I also own some rental property and to be able to power up a tenant’s home during an outage is also quite useful! Nothing make happier tenants than light and warmth. Lastly, my beautiful grandkids love to play with this big instrument. My naughty son even shove his sister away just so he can play with it. She keep saying “sheer!” I think she wants to play too. Review: Outstanding Service! - Very pleased and satisfied with my order! Value for the money is great because I purchased on sale! It is extremely heavy. I believe the weight is around 70 pounds so definitely order the trolley! The design is very sleek and the big quality seem very good! The capacity for energy storage is excellent and the noise level is minimal! Their customer service is outstanding. I ran into an issue receiving an inverter with software issues. Sent it back to the company and they had a new one out within a week. I would definitely recommend! ## Features - Expandable capacity - Increase the capacity of DELTA Pro Ultra&DELTA Pro Ultra X with an extra 6144Wh. - The Highest Safety Standards: EV-grade LFP cells, dual BMS, and 3-level safety architecture. - Plug-and-play without setup. And use the EcoFlow app to monitor and control. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CQXLCK75 | | Additional Features | Expandable Capacity, LFP Battery | | Best Sellers Rank | #47,610 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #148 in Outdoor Generators | | Brand | EF ECOFLOW | | Brand Name | EF ECOFLOW | | Color | Silver | | Customer Reviews | 4.3 out of 5 stars 97 Reviews | | EU Spare Part Availability Duration | 10 Years | | Engine Power Maximum | 7.2 Kilowatts | | Engine Type | Battery-based | | Fuel Type | Electric | | Included Components | DELTA Pro Ultra Battery, EcoFlow Battery Connection Cable | | Item Dimensions L x W x H | 26"L x 18"W x 8"H | | Item Type Name | portable power station | | Item Weight | 111.8 Pounds | | Manufacturer | EcoFlow | | Manufacturer Part Number | EFYJ751-BP | | Material Type | Lithium Iron Phosphate (Lfp), Steel, Aluminum | | Model Name | DELTA Pro Ultra Extra Battery | | Model Number | EFYJ751-BP | | Output Wattage | 7200 | | Power Source | Battery Powered | | Recommended Uses For Product | Camping, Commercial, Residential | | Running Wattage | 7200 Watts | | Runtime | 720 hours | | Starting Wattage | 7200 Watts | | Total Power Outlets | 1 | | UPC | 842783132925 | | Unit Count | 1.0 Count | | Voltage | 120 Volts | | Warranty Description | 5 year manufacturer | | Wattage | 7200 watts | ## Product Details - **Brand:** EF ECOFLOW - **Fuel Type:** Electric - **Included Components:** DELTA Pro Ultra Battery, EcoFlow Battery Connection Cable - **Item Weight:** 111.8 Pounds - **Output Wattage:** 7200 - **Power Source:** Battery Powered - **Recommended Uses For Product:** Camping, Commercial, Residential - **Special Feature:** Expandable Capacity, LFP Battery - **Voltage:** 120 Volts - **Wattage:** 7200 watts ## Images ![Extra Battery for Delta Pro Ultra&Delta Pro Ultra X, Lifepo4 Battery Backup for Home Use, Emergency, Camping, RV - Image 1](https://m.media-amazon.com/images/I/51ydf3PeUuL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ I love my DPU EB *by A***R on September 21, 2025* Our son is a huge ecoflow fan so he recommended for us to get the ecoflow delta pro ultra! He has an extra inverter so it turns out that all we needed to buy was the battery itself! It’s great since we got to save money instead of buying the whole system! The battery is very heavy but at 110lb or so we aren’t too old to move it quite yet! (In our 70s). Our son recommended us to use it to backup our refrigerator since we don’t yet have the smart panel installed so we can’t quite tie it into our home, and our HOA don’t allow for solar panels, but my son and I ran a test and this thing is running our refrigerator as we speak and it’s been two and half days! Still got around 7% left! It’s a game changer for retiree like myself because I travel a lot with my wife and often gone for weeks, so being able to back up my fridge for so long really gave me the peace of mind. I also own some rental property and to be able to power up a tenant’s home during an outage is also quite useful! Nothing make happier tenants than light and warmth. Lastly, my beautiful grandkids love to play with this big instrument. My naughty son even shove his sister away just so he can play with it. She keep saying “sheer!” I think she wants to play too. ### ⭐⭐⭐⭐⭐ Outstanding Service! *by A***Y on March 18, 2025* Very pleased and satisfied with my order! Value for the money is great because I purchased on sale! It is extremely heavy. I believe the weight is around 70 pounds so definitely order the trolley! The design is very sleek and the big quality seem very good! The capacity for energy storage is excellent and the noise level is minimal! Their customer service is outstanding. I ran into an issue receiving an inverter with software issues. Sent it back to the company and they had a new one out within a week. I would definitely recommend! ### ⭐⭐⭐⭐⭐ Good quality brand name unit *by K***R on October 12, 2025* Works great and holds charge for longer than expected. Wish they were more inexpensive. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/599788249-extra-battery-for-delta-pro-ultra-and-delta-pro-ultra](https://www.desertcart.sk/products/599788249-extra-battery-for-delta-pro-ultra-and-delta-pro-ultra) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-06-25*