The EcoFlow DELTA Pro 3 delivers serious portable power for home backup, RVs, off-grid living, and job sites. With 4096Wh capacity, a 4000W AC output, and up to 2600W solar charging, the DELTA Pro 3 keeps your essentials running anytime, anywhere. Expandable with extra batteries and smart home integration, it’s a reliable solution for whole-home and mobile backup power. For the price, this is one of the best solar generator/power units around, considering the size, weight, and portability. It can also be expanded to power just about anything. It is the upgraded EcoFlow Delta Pro, which was one of the top-selling units in the USA. Key Features Massive 4096Wh capacity for powering fridges, tools, medical devices & more 4000W AC output with surge headroom for heavy-duty appliances Up to 2600W solar input for fast, renewable off-grid charging Expandable system with additional EcoFlow batteries Smart Home Panel integration for seamless whole-home backup App monitoring, fast AC recharge, and quiet operation What’s in the Box EcoFlow DELTA Pro 3 Unit AC Charging Cable DC/Car Charging Cable User Manual & Warranty (Accessories vary by bundle; see options on this page) Tech Specs Capacity: 4096Wh AC Output: 4000W (120V), surge higher Solar Input: up to 2600W Battery Chemistry: LFP (LiFePO4) Expansion: Compatible with EcoFlow extra batteries & Smart Home Panel App: iOS/Android control and monitoring EcoFlow DELTA Pro 3 vs DELTA Pro Ultra Not sure which model is right for you? Compare the DELTA Pro 3 and DELTA Pro Ultra below to find the best fit for your home, RV, or off-grid power needs. Feature EcoFlow DELTA Pro 3 EcoFlow DELTA Pro Ultra Battery Capacity 4096Wh 6000Wh (expandable up to 90kWh) AC Output 4000W continuous, higher surge 7200W continuous, higher surge Solar Input Up to 2600W Up to 5600W Battery Chemistry LFP (LiFePO4) LFP (LiFePO4) Expansion Expandable with extra batteries Expandable with multiple Ultra units + Smart Home Panel 2 Best For Home backup, RVs, off-grid cabins, job sites Whole-home backup, heavy-duty off-grid systems, high power demand Weight ~115 lbs (52 kg) ~132 lbs (60 kg) per unit Warranty 5 years 5 years The EcoFlow DELTA Pro 3 is ideal for most households, RVs, and portable backup needs, while the DELTA Pro Ultra is designed for full-home backup and maximum off-grid performance. Why Buy From AllProGenerators Authorized EcoFlow dealer since 2018 Family-owned U.S. business with real phone support (954-249-2314) Price-beat & lowest-price guarantee Fast shipping and manufacturer warranty support EcoFlow DELTA Pro 3 FAQs How long will the EcoFlow DELTA Pro 3 run a refrigerator?A full charge powers a standard fridge for about 1–2 days depending on size and efficiency. Can I use solar panels and AC charging at the same time?Yes, the DELTA Pro 3 supports dual charging for faster recharge times. What is the warranty on the EcoFlow DELTA Pro 3?EcoFlow provides a 5-year warranty for reliable, long-term use. Is the DELTA Pro 3 expandable?Yes, you can add extra batteries and connect it to the EcoFlow Smart Home Panel for whole-home backup. Related & Compatible Products EcoFlow Smart Home Panel – Whole-home backup EcoFlow Extra Batteries – Expand capacity Delta Pro 3 Custom Bundle Deals With Portable 200W Briefcase or Rigid Solar Panels EcoFlow 400W Solar Panels – Fast solar charging EcoFlow DELTA Pro Ultra – Higher capacity option How the EcoFlow DELTA Pro 3 Works The EcoFlow DELTA Pro 3 isn’t your average power station — it’s a smart, expandable energy system built to handle daily life, road trips, and full home backup. It gives you clean, silent power that you can charge from the wall, the car, or the sun. Once you try it, it’s hard to go back to noisy gas generators. A Quick Look at What It Can Do Runs high-demand appliances like refrigerators, sump pumps, and power tools. Expands with extra batteries or solar panels for longer runtimes. Connects to your home through the Smart Home Panel 2 for automatic backup. Charges faster than any comparable solar generator on the market. Check out the new How To guide below on the Delta 3 Pro. This answers a lot of the questions we get from customers. How to Use Your EcoFlow DELTA Pro 3 You don’t need to be an electrician to get started. Here’s a simple, real-world walkthrough for using your new DELTA Pro 3 confidently and safely. 1. Charge It Up Plug into a standard wall outlet using the included AC cord. It’ll reach a full charge quickly — you can watch the progress right on the display. A full first charge helps calibrate the battery for best long-term health. 2. Plug In Your Gear Once charged, connect what you need — from laptops and lights to coffee makers or small appliances. The display shows how much power you’re drawing, so you’ll always know what’s running and for how long. 3. Track Everything on the Screen or App The built-in screen keeps you updated in real time, and the EcoFlow app lets you control settings, check charge status, or view solar input even when you’re not nearby. 4. Go Solar or Charge on the Road Connect EcoFlow solar panels directly to the unit and let sunlight keep it topped off all day. Traveling? Use the car charging cable while driving to stay ready when you arrive. 5. Set Up Home Backup (Optional) Pair it with the Smart Home Panel 2 for seamless backup power. When the grid goes out, the DELTA Pro 3 automatically kicks in to keep essentials like lights, Wi-Fi, and refrigerators running — no noise, no fumes. 6. Keep It in Shape If you’re storing it for a while, charge it to about 60 percent and keep it somewhere cool and dry. A quick top-off every few months keeps the battery ready for action. Pro Tip: The DELTA Pro 3 is modular — add extra batteries, solar panels, or the EV-level alternator charger to create a setup tailored to your lifestyle. Why People Love the DELTA Pro 3 It’s quiet, powerful, and built for real life. Homeowners trust it for backup, campers love it for comfort, and pros use it on the job. It charges fast, lasts long, and works when you need it most — no gas, no mess, just reliable power anywhere you go.
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