The DELTA Pro Ultra is EcoFlow’s most advanced home backup solution yet — engineered for high-demand use cases like whole-home power, serious off-grid setups, and extended outages. This 6.1kWh battery is fully expandable and stackable, making it ideal for those who want plug-and-play flexibility with pro-level performance.
Massive 6,114Wh capacity to power essentials for days
Modular & expandable — stack multiple batteries for full home coverage
Compatible with solar, gas, and grid charging
Silent, fume-free operation — perfect for indoor or discreet use
Fast setup with smart app control & real-time monitoring
High surge output supports large appliances & tools
Choose your bundle: Add solar panels, accessories, or backup hubs
Emergency backup during blackouts or SHTF events
Off-grid cabins, RVs, or rural properties
EV charging and whole-home load shifting
Customers who want power independence without rewiring their home
Battery Capacity: 6,114Wh (6.1kWh)
Battery Chemistry: LFP (LiFePO₄) – 10,000+ cycle lifespan
Voltage: 102.4V
Max Output (with Inverter): Up to 7,200W continuous (in system config)
Max Solar Input: 5,600W (when paired with inverter)
Expansion Capability: Stackable with up to 5 additional batteries
Charging Options: Solar, AC (wall), EcoFlow Smart Generator
Dimensions: 26.3 x 14 x 9.5 in
Weight: ~110 lbs
Connectivity: WiFi, Bluetooth, EcoFlow App Control
Operating Temp: -4°F to 113°F (-20°C to 45°C)
The DELTA Pro Ultra is EcoFlow’s most advanced home backup solution yet — engineered for high-demand use cases like whole-home power, serious off-grid setups, and extended outages. This 6.1kWh battery is fully expandable and stackable, making it ideal for those who want plug-and-play flexibility with pro-level performance.
Massive 6,114Wh capacity to power essentials for days
Modular & expandable — stack multiple batteries for full home coverage
Compatible with solar, gas, and grid charging
Silent, fume-free operation — perfect for indoor or discreet use
Fast setup with smart app control & real-time monitoring
High surge output supports large appliances & tools
Choose your bundle: Add solar panels, accessories, or backup hubs
Emergency backup during blackouts or SHTF events
Off-grid cabins, RVs, or rural properties
EV charging and whole-home load shifting
Customers who want power independence without rewiring their home
Battery Capacity: 6,114Wh (6.1kWh)
Battery Chemistry: LFP (LiFePO₄) – 10,000+ cycle lifespan
Voltage: 102.4V
Max Output (with Inverter): Up to 7,200W continuous (in system config)
Max Solar Input: 5,600W (when paired with inverter)
Expansion Capability: Stackable with up to 5 additional batteries
Charging Options: Solar, AC (wall), EcoFlow Smart Generator
Dimensions: 26.3 x 14 x 9.5 in
Weight: ~110 lbs
Connectivity: WiFi, Bluetooth, EcoFlow App Control
Operating Temp: -4°F to 113°F (-20°C to 45°C)
No obligation — get a custom quote in minutes
EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option
Testimonials
Join the thousands of people who have already secured their energy independence.
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
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The Sales, Delievery and mequipment are firrst rate. I can't give a full rating as it is runing temporary with only one panel, as the company I contracted with did not show up to roof mount my panels
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I purchased a package ( control unit, one battery, four panels and accessories) and months later added a battery. The unit has had no issues. The install went well. The support staff was knowledgeable and very helpful. I would recommend Shop Solar to a friend.
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This is my fourth battery.
Excellent product.
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Very easy to install. Looks heavy duty.
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Rated 5 out of 5
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Rated 5 out of 5
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I have now powered up my house on battery power. The system was seamless and worked perfectly. I will have my solar panels hook up next week to complete the system. Very impressed so far!
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Rated 5 out of 5
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Rated 5 out of 5
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Since we bought the additional two batteries for our echo flow delta pro ultra we have been extremely pleased with the amount of storage wattage we now have available to us to use as needed with our transfer switch. We choose the circuits in our house each day that we run on solar panel wattage, which is saving us every day on our electric bill. ShopSolar has given us great counsel as to understanding the solar system purchase from them — how to install it safely and with the right equipment
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Order With Confidence
Find the answers to some of the most common questions customers have before placing their order.
Yes. Our team can help you choose the right solar kit based on your goals, power needs, and location. We provide personalized guidance before and after your purchase at no additional cost.
Many of our customers complete the majority of installation themselves using our diagrams and support resources. For final electrical connections, a licensed electrician may be required depending on local codes.
While we do not directly install systems, we can help connect you with qualified local professionals and provide technical documentation to support your installer.
Our return policy is normally 30 days. If you have specific questions about returns, eligibility, or specific product conditions, you can learn more in our help center linked below.
All products are backed by full manufacturer warranties. In addition, our team provides free lifetime technical support to assist you throughout the life of your system.
Yes! We offer a variety of flexible payment plans to fit any budget. Options include monthly financing with competitive interest rates, and some plans require no money down. You can apply during checkout and get approved in minutes.
If you're ready to place your order, you can go ahead and checkout online right now. If you have questions, our friendly team of solar experts are happy to assist and can take your order over the phone. If you're interested in financing, you will find the application at checkout online. So whatever is best for you, we are happy to accommodate.
Our team works hard to process all orders within 24-48 hours. Most products ship directly to your door using the quickest, most cost effective ground shipping services depending on size. You’ll receive tracking details and delivery coordination as soon as your order ships. Our average shipping times are anywhere from 3-7 days.
You’ll have free direct access to our support team via phone, email, and chat. Whether it’s setup guidance or troubleshooting years down the road, we’re here to help.
Flexible Payment Options
We offer a wide variety of payment plan options to meet each customer's needs.
Fill out a short application and we'll match you with multiple payment plan options instantly.
Don't sweat it. We welcome all credit scores and a credit score is not required for approval.
Some payment plans offer as little as no money down, if you qualify.*
