EcoFlow DELTA 3 Ultra Series Portable Power Station

Original price was: $2,499.00.Current price is: $1,299.00.

1. Smart Output Priority: Choose which circuits stay powered via the app. Prioritize what matters and extend runtime when it counts most.
2. 3-11kWh Expandable Capacity: Easily scale up, and can achieve longer runtime with an EcoFlow Smart Generator featuring automatic start and stop.
3. 6 Ways to charge, Ready in Just 48 Mins: Ready in Just 48 Mins (0-80%) with Solar + Generator Dual Charging

EcoFlow DELTA 3 Ultra Series Portable Power Station

EcoFlow DELTA 3 Ultra delivers 3600W rated-output, 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.

Common Features

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 (≤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 a 3-year standard warranty and a 2-year extended warranty available upon EcoFlow App registration.

EcoFlow DELTA 3 Ultra Series

Model Name	Early Price	Details
EcoFlow DELTA 3 Ultra	~~$2,499.00~~ – $1,399.00	View Product
EcoFlow DELTA 3 Ultra Plus	~~$2,899.00~~ – $1,599.00	View Product
EcoFlow DELTA 3 Max	~~$1,499.00~~ – $799.00	View Product
EcoFlow DELTA 3 Max Plus	~~$1,899.00~~ – $1,099.00	View Product
EcoFlow DELTA 3 Classic	$599.00 – $409.00	View Product

Go Hybrid – Extend Backup With a Smart Generator

Pair DELTA 3 Ultra 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 adventures.

4 Ways to Charge Up — Ready in Just 1.48 Hrs

Wall Charging
1800W Input, 0-80% in 1.48 hrs. 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
With 1800W input, recharge to 80% in just 1.48 hrs. The EcoFlow Smart Generator 4000 (Dual Fuel) powers up DELTA 3 Ultra for storms, outages, and off-grid living
Solar Charging
800W Input, 0-80% in 3.37 hrs. Pair it with EcoFlow Solar Panels (25% high-efficiency) for reliable power during camping trips, van life, or off-grid living.
Alternator Charging
With the EcoFlow Alternator Charger, get ready fast while on the move.

EcoFlow DELTA 3 Ultra Specifications


Net Weight	32.7±0.6kg	Dimensions (HWD)	625.99mm×327.71mm×394.95mm
Rated Capacity	3072Wh 51.2V 60Ah	Cell Chemistry	LFP (LiFePO4)
AC Output	120V~60Hz 3600W total (surge 7200W), 20A(x4) Max per port, 30A(x1) Max per port	X-Boost	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	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)
Charge Temperature	0°C-45°C(32°F-113°F)	Discharge Temperature	-10 to 45°C(14°F-113°F)
Storage Temperature	-10 to 45°C(14°F-113°F)	Warranty	5-Year Warranty *Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration.
Communication Method	Wi-Fi & Bluetooth	EMC	Class B
UPS	<10ms

Read: Delta Pro 3 vs Delta 3 Ultra: The Ultimate EcoFlow Showdown

Built to Last

From battery chemistry to structural design, DELTA 3 Ultra is engineered for extreme durability, environmental resilience, and whisper-quiet performance.

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 is drop-resistant (0.2m) and shockproof —protecting against overnight condensation and off-road bumps during transport. You get stable power even in the most demanding conditions.
Extreme Environment Resistance
DELTA 3 Ultra keeps your power flowing through freezing cold, scorching heat, humid environments (95% humidity tolerance), or coastal air—for reliable energy anytime, anywhere.
Class B EMC Certification
Certified to Class B EMC standards, it won’t interfere with TVs, Wi-Fi, or other home electronics.

Deeper Insights, Easier Control

Monitor your energy usage and solar generation—all with one intuitive dashboard. Set timed charging/discharging missions so that you can charge during off-peak hours and discharge during peak rate periods to save costs.

What’s in The Box

EcoFlow DELTA 3 Ultra Portable Power Station 1x
AC Charging Cable 1x
Manual & Warranty Cards 1x

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