3600W Output, 7200W Surge—Powerful. Stable. Built to Handle It All

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 33μs with high precision with a DSP chip, ensuring a pure sine wave output with beyond grid-level stability—ideal for powering sensitive electronics reliably.

Kitchen

Living Room

Laundry Room

Office

RV Camping

X-Fusion™ 3.0 Tech

When in bypass mode and connected to the grid or generator to power appliances via an AC outlet, X-Fusion overrides grid/generator electricity with inverter power
Unlike other portable power stations limited by 1800W grid input when charging, you get higher power for your appliances, enjoying full 3600W output at all times.

Smart Output Priority Tech

Pick Your Priority Outputs, Extend What Matters Most. Manage each outlet remotely from your phone. Prioritize essentials like your fridge or medical devices to extend runtime when it counts most.

Run Outdoor Gear. Power Your RV. Charge Your Essentials— One Station Powers it All

Whether you're parked at camp or on the road, the two DC ports—Anderson[3] and car cigarette port—keep 12V gear running, from portable car fridges to car vacuums and air pumps. When you need more power, the TT-30 port enables support for your entire RV setup. And for everyday use, the high-power USB-C port fast-charges laptops and phones with ease.

6 Ways to Charge Up — Ready in Just 48 Mins

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 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.

Wall Charging

1800W Input, 0-80% in 89 mins. [7] EcoFlow’s exclusive Storm Guard Mode [8] 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, [9] 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.

Alternator Charging

1000W Input, 0-80% in 142 mins. With EcoFlow Alternator Charger Plus 1000, [10] get ready in just over 2 hours while on the move—10× faster than conventional solutions. [11]

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.

Easily Scales Up—From Hours to Days

3–11kWh expandable capacity

Compatible with Smart Generators for unlimited runtime

Half-Day Outage

1-Day Outage

2-Day Outage

* Require connecting 1*DELTA 3 Ultra Plus (3072Wh) + 2* DELTA 3 Max Plus (2048Wh) Smart Extra Battery with EcoFlow Smart Extra Battery Expansion Adapter. The EcoFlow Extra Battery Expansion Adapter will be released soon.

3-Day Outage

* Require connecting 1*DELTA 3 Ultra Plus (3072Wh) + 2* DELTA Pro 3 Smart Extra Battery with EcoFlow Smart Extra Battery Expansion Adapter. The EcoFlow Extra Battery Expansion Adapter will be released soon.

Go Hybrid—Extend Backup with a Smart Generator

Pair DELTA 3 Ultra Plus (3072Wh) with an EcoFlow Smart Generator [5] to achieve longer runtime—automatically switching between fuel and battery to keep you powered through multi-day outages or off-grid adventure.

Two Easy Ways to Connect to Your Home

Deeper Insights, Easier Control

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

Cut Costs, Not Comfort

DELTA 3 Ultra Plus intelligently optimizes energy usage to help lower your electricity bills while powering your home sustainably. Set automated tasks to charge during off-peak evening hours and discharge during the day. To use this feature, update the software to V6.15 or above and upgradethe firmware to V7.80.99.52 or above.

Long-Lasting, Durable, Always Ready for Emergencies

Automotive-Grade Full-Tab LFP Cells

Rugged exterior and intelligent BMS for unmatched reliability

Unrivaled Balance for Unmatched Battery Longevity

With 27% fewer cells per kWh, our 16-cell design runs cooler, lasts longer, and delivers greater stability. Each cell is rigorously tested for capacity, voltage, and internal resistance—resulting in a highly uniform pack that protects against overcharging, imbalance, and premature wear.

Built to Last

From battery chemistry to structural design, DELTA 3 Ultra Plus is engineered for extreme durability, environmental resilience, and whisper-quiet performance—delivering power you can count on for over 10 years.

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.

25dB

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.

EcoFlow DELTA 3 Ultra Plus Solar Generator & Kits

EcoFlow Smart Generator 4000 (Dual Fuel)

EcoFlow DELTA 3 Ultra Plus 3072Wh 3600W Portable Power Station