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EcoFlow Delta 3 Ultra Plus Portable Power Station
Item Code: EFDELTA3UPLUS
Ship Weight: 75 lbs.
Regular Price: $2,899.00
Sale Price: $1,599.00
You Save 45% ($1,300.00)

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Product Details
The EcoFlow Delta 3 Ultra Plus Portable Power Station is a cutting-edge energy solution built for both home backup and off grid adventures. Features Smart output Priority which allows you to choose which circuits stay powered via the app. Prioritize what matters and extend runtime when it counts most. You can also easily scale up to 11kWh, and can achieve longer runtime with an EcoFlow Smart Generator featuring automatic start and stop. The Delta 3 Ultra Plus also gives you 6 ways to charge and have your system charged to 80% in just 48 minutes with Solar and the Dual Fuel Generator. Built to last, the Delta 3 Ultra uses automotive grade full tab LFP cells and an EV grade CTC structure for enhanced durability, along with a 24/7 BMS, Class B certification, and protection against moisture and shocks.
Long-Lasting Portable Home Backup. Unmatched Performance:

Powerful. Stable. Built to Handle It All:

3–11kWh Expandable Capacity:

Two Easy Ways to Connect to Your Home:

Go Hybrid and Extend Backup with a Smart Generator:

6 Ways to Charge Up:

Automotive Grade Full Tab LFP Cells:

Built to Last:

Deeper Insights, Easier Control:

Long-Lasting Portable Home Backup. Unmatched Performance:
• | Smart Output Priority: Choose which circuits stay powered via the app. Prioritize what matters and extend runtime when it counts most. |
• | 3-11kWh Expandable Capacity: Easily scale up, and can achieve longer runtime with an EcoFlow Smart Generator featuring automatic start and stop. |
• | 6 Ways to charge, Ready in Just 48 Mins: Ready in Just 48 Mins (0-80%) with Solar + Generator Dual Charging |
• | 3600W Powerful Output: 7200W surge output. With X-Boost™ mode, supports heavy-duty appliances up to 4600W such as clothing steamers, electric dryers, lawnmowers, and electric frying pans. |
• | Long-Lasting, Durable, and Reliable: Equipped with automotive-grade full-tab LFP cells, offering 10 years of reliable power, 24/7 protection BMS, Class-B certification, and EV-grade CTC structure that protects against overnight condensation and off-road bumps during transport. |
• | 2 Easy Ways to Connect to Your Home: Manual Transfer Switch and Inlet Box. |
• | 10ms Auto-Switch: Keep critical devices like NAS systems and servers running smoothly. |
• | 25dB Whisper-Quiet Operation: Ultra-low noise (less than 25dB at 600W). |
• | OASIS 3.0 Smart App Control: Dashboard to monitor real-time battery status, electricity prices, and savings. Storm Guard Mode automatically activates backup power before extreme weather hits. Self-Powered Mode and Scheduled Tasks save you money daily. |
• | Up to 5-Year Warranty: Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration. |

• | Delta 3 Ultra Plus delivers 3600W rated-output (7200W surge) , with X-Boost 3.0 technology, it supports devices up to 4600W, effortlessly handling heavy-duty appliances. The inverter samples AC voltage and current every 33 seconds with high precision with a DSP chip, ensuring a pure sine wave output with beyond grid-level stability, ideal for powering sensitive electronics reliably. |

• | The unit by itself can cover essential power needs during a 4-10 hour outage, keeping food fresh, heat running, lights on, and communication devices charged. |
• | Adding one battery can delivers up to 1 day of outage protection ensuring uninterrupted cooking, heating, lighting, and connectivity. |
• | Adding two battery can powers home essentials for up to 2 days with 7kWh capacity keeping most appliances in your kitchen running, lights on, and devices connected. |
• | Three batteries can support a family of four through 3 days of everyday living with 11kWh capacity keeping food fresh, heat running, lights on, and entertainment devices charged. |

• | Manual Transfer Switch: Switch smoothly between grid and Delta 3 Ultra Plus to meet diverse energy needs, ensuring continuous reliability without interruption. |
• | Inlet Box: Simply connect the built-in AC socket with an Inlet Box to power your home appliances. |

• | Pair Delta 3 Ultra Plus with an EcoFlow Smart Generator to achieve longer runtime, automatically switching between fuel and battery to keep you powered through multi-day outages or off-grid adventure. |
• | With the ability to recharge from fuel generators such as gas and propane units @ an 1800W input, recharge to 80% in just 1.48 hours. The EcoFlow Smart Generator 4000 (Dual Fuel) powers up the Delta 3 Ultra for storms, outages, and off-grid living. |

• | Wall Charging: 1800W Input, 0-80% in 89 mins. EcoFlow’s exclusive Storm Guard Mode monitors severe weather alerts and automatically triggers AC charging remotely using industry-leading X-Stream fast charging tech so it can be ready long before a disaster hits. |
• | Generator Charging: Charges at up to 3200W via smart generator 0-80% in 53 minutes. With exclusive Generator Auto Start/Stop Mode, the EcoFlow Smart Generator 4000 (Dual Fuel) recharges Delta 3 Ultra Plus automatically when battery levels run low delivering hands-free backup power for storms, outages, and off-grid use. |
• | Solar Charging: 1600W input, 0-80% in 101 mins. After the storm clears, just 101 mins of sunlight is all it takes to recharge DELTA 3 Ultra Plus. Pair it with EcoFlow 400W Solar Panels (25% high-efficiency) for reliable power during camping trips, van life, or off-grid living. |
• | Alternator Charging: 1000W Input, 0-80% in 142 mins. With EcoFlow Alternator Charger Plus 1000, get ready in just over 2 hours while on the move, 10× faster than conventional solutions. |
• | Solar + Generator Dual Charging: 3960W Input, 0-80% in 48 mins. Fastest charge in just 48 mins with 3960W dual input from solar panels and the Smart Generator 4000. |
• | Solar + Alternator Dual Charging: 2600W Input, 0-80% in 60 mins. Dual input from 1600W solar and 1000W alternator charging keeps you powered faster than ever, even on the go. |

• | Built with a rugged exterior and intelligent BMS for unmatched reliability. |

• | From battery chemistry to structural design, Delta 3 Ultra Plus is engineered for extreme durability, environmental resilience, and whisper-quiet performance. |
• | Battery Protection: EcoFlow’s advanced BMS uses a high-performance ARM Cortex chipset and intelligent algorithms to monitor your battery in real time. By tracking SOC, SOH, temperature, and more, it ensures peak performance, extended battery life, and worry-free operation. |
• | CTC Structure: Built with a cell-to-chassis (CTC) structure, Delta 3 Ultra Plus is drop-resistant (0.2m) protecting against overnight condensation and off-road bumps during transport. You get stable power even in the most demanding conditions. |
• | Durable Qualities: Delta 3 Ultra Plus keeps your power flowing through freezing cold, scorching heat, humid environments (95% humidity tolerance), or coastal air (5% salt spray resistance). |
• | Class B Certified: Certified to Class B EMC standards, it won’t interfere with TVs, Wi-Fi, or other home electronics. |
• | 25 Decibels: Powered by X-Quiet 3.0, EcoFlow’s stepless fan control adjusts airflow smoothly to maintain precise thermal regulation - keeping your home or workspace peacefully quiet, even under heavy loads. |

• | Monitor your energy usage, savings, and solar generation, all with one intuitive dashboard. Easily track battery status, real-time electricity rates, and financial savings. |

Specifications
General Information | |
Manufacturer Name: | EcoFlow |
Dimensions: | 24.13" x 12.90" x 15.55" in |
Weight: | 74 lbs |
Operating usage temp: | Charge: 32-113 F (0-45 C) Discharge: 14F-113F (-10 to 45 C) |
Connection: | Wi-Fi, Bluetooth |
Warranty: | 36 Month Warranty - Additional 24 Month Warranty Available Upon Product Registration (Total of 5 years) | Battery |
Cell Type: | LFP |
Capacity: | 3072 Wh |
Shelf-life: | 1 Year (after fully charging) |
Cycle Life: | 4,000 cycles to 80% capacity | AC Charging Input |
AC Input (Charge Only): | 100-120V - 15A 50/60Hz |
Maximum PV Input Power(W): | 800W |
Optimal operating temperature: | 20 C to 30 C (68 F to 86 F) | Outputs |
AC Output: | 120V~60Hz 3600W total (surge 7200W), 20A(x4) Max per port, 30A(x1) Max per port |
X-Boost Max Output: | 4600W |
USB-A Output: | USB-A(x1): 5V-3A/9V-2A/12V-1.5A, 18W Max |
USB-C Output: | USB-C(x1): 5/9/12/15V-3A, 20V/28V--5A, 140W Max(HID) USB-C(x2): 5/9V/12V/15V-3A 20V-2.25A, 45W Max per port, total 45W |
Cigarette Lighter Output Port: | 12.6V, 10A, 126W Max CAR:10A Max (Shared power with Anderson port) |
EMC: | Class B |
UPS: | 10ms |
What's Included
What's Included:
• (1) EcoFlow Delta 3 Ultra Plus Portable Power Station
• (1) AC Charging Cable
• (1) Warranty Card
• (1) User Manual
• (1) EcoFlow Delta 3 Ultra Plus Portable Power Station
• (1) AC Charging Cable
• (1) Warranty Card
• (1) User Manual
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