EcoFlow DELTA 3 Ultra Plus Portable Power Station With 3600W AC Output & Built in 3072 Wh (256Ah@12V) LFP Battery

The EcoFlow DELTA 3 Ultra Plus Portable Power Station is a high-performance, expandable energy solution built for home backup, professional use, and off-grid applications—delivering exceptional power, intelligence, and long-term reliability.

Equipped with a built-in 3072Wh (256Ah @ 12V) EV-grade LFP battery, it offers up to 10 years of dependable operation, thanks to advanced full-tab lithium iron phosphate technology known for safety, longevity, and stable performance.

This unit delivers an industry-leading 3600W continuous AC output, with a massive 7200W surge capacity, allowing it to handle power-hungry appliances, tools, and sensitive electronics with ease. Whether for home essentials or mobile setups, it provides consistent and reliable power delivery.

The DELTA 3 Ultra Plus features Smart Output Priority Technology, intelligently managing energy distribution to optimize efficiency and ensure critical devices receive priority power when needed. For extended use, it supports continuous operation with the EcoFlow Smart Generator, making it ideal for long-duration backup or off-grid living.

Its scalable capacity from 3kWh up to 11kWh allows you to expand your energy storage as your needs grow—transforming it from a portable station into a more robust home backup system. The easy home connection feature further enhances its usability, enabling seamless integration into residential power setups.

Advanced safety and monitoring are handled by a 24/7 Battery Management System (BMS) powered by an ARM Cortex chipset and enhanced with a cloud-based intelligent algorithm, providing real-time protection against overvoltage, overheating, and other risks.

Combining high output, expandable capacity, smart energy management, and long-lasting battery technology, the EcoFlow DELTA 3 Ultra Plus is a future-ready power solution for both everyday and emergency use.

Product Features in Detail

A New Era of Power Performance
Industry-Leading 3kWh Portable Power Station with Smart Output Priority
Extend runtime for your essentials and stay powered through anything.

Pick Your Priority Outputs, Extend What Matters Most
Smart Remote Switching | Reduce waste to increase runtime for essentials
DELTA 3 Ultra Plus (3072Wh) introduces Smart Output Priority Tech. This convenient new feature lets you choose which circuits stay powered via the app. Prioritize what matters—like your fridge, Wi-Fi, or medical devices—and extend runtime when it counts most, even when you're away.

3600W Output, 7200W Surge—Powerful. Stable. Built to Handle It All
DELTA 3 Ultra Plus (3072Wh) 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.

All Your Essentials. All at Once.
DELTA 3 Ultra Plus (3072Wh) delivers a powerful 3600W output—enough to run your microwave, kettle, fridge, and blender all at once, without a flicker. Lunchtime? Go full throttle. No unplugging, no interruptions—just seamless power. [4]

Easily Scales Up—From Hours to Days
3–11kWh expandable capacity
Compatible with Smart Generators for unlimited runtime

Go Hybrid—Extend Backup with a Smart Generator
Pair DELTA 3 Ultra Plus (3072Wh) with an EcoFlow Smart Generator [8] to achieve longer runtime—automatically switching between fuel and battery to keep you powered through multi-day outages or off-grid adventures.

Manual Transfer Switch [9]
Switch smoothly between grid and DELTA 3 Ultra Plus (3072Wh) 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. [10]

A New Level of Fast
Ultra-versatile 6 charging options, 48-minute fast charge.
Remote charging control for added peace of mind.

Wall Charging
1800W Input, 0-80% in 89 mins. [11] EcoFlow’s exclusive Storm Guard Mode [12] 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, [13] the EcoFlow Smart Generator 4000 (Dual Fuel) recharges DELTA 3 Ultra Plus (3072Wh) 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 (3072Wh). Pair it with EcoFlow 400W Solar Panels (25% high-efficiency) for reliable power during camping trips, van life, or off-grid living. [14]

Alternator Charging
1000W Input, 0-80% in 142 mins. With EcoFlow Alternator Charger Plus 1000, [15] get ready in just over 2 hours while on the move—10× faster than conventional solutions. [16]

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.

Long-Lasting, Durable, Always Ready for Emergencies
Automotive-grade full-tab LFP cells
Rugged exterior and intelligent BMS for unmatched reliability

Automotive-grade Full-Tab LFP Cells: Next-Level Battery Reliability
DELTA 3 Ultra Plus (3072Wh) is equipped with automotive-grade full-tab LFP cells. The full-tab design reduces resistance, enhances efficiency and safety, and provides higher capacity with less heat, resulting in a long battery lifespan.
25% more
efficient power flow (thanks to lower resistance: 1.5 mΩ vs. 2 mΩ) [17]
25% less
self-heating [18]

Unrivaled Balance for Unmatched Battery Longevity
With 27% fewer cells per kWh, [19] 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.
16-cell uniform set per 1 kWh
Rigorously tested for capacity, voltage, and internal resistance

Built to Last
From battery chemistry to structural design, DELTA 3 Ultra Plus (3072Wh) is engineered for extreme durability, environmental resilience, and whisper-quiet performance—delivering power you can count on for over 10 years. [3]

Smart, 24/7 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.

EV-Grade CTC Structure
Built with a cell-to-chassis (CTC) structure, DELTA 3 Ultra Plus (3072Wh) 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. [20]

Extreme Environment Resistance
DELTA 3 Ultra Plus (3072Wh) keeps your power flowing through freezing cold, scorching heat, humid environments (95% humidity tolerance), or coastal air (5% salt spray resistance). [20]

Class B EMC Certification
Certified to Class B EMC standards, it won’t interfere with TVs, Wi-Fi, or other home electronics.

25dB Whisper-Quiet Operation Under Loads [21]
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.

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 (3072Wh) 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.

Intelligent Mode
Charge During Off-Peak, Use During Peak
Intelligent Mode lets you set custom charging and discharging schedules based on your local electricity rates. Charge when energy is cheapest, and discharge during peak hours to cut costs without lifting a finger. [22]

Self-Powered
Reduce Grid Dependency, Lower Electricity Costs
Self-Powered mode stores solar energy and powers your home once battery levels exceed a preset reserve. It minimizes grid use while maximizing solar efficiency—ideal for managing fluctuating energy prices and enhancing your energy independence.