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 | View Product | |
 | EcoFlow DELTA 3 Ultra Plus | View Product | |
 | EcoFlow DELTA 3 Max | View Product | |
 | EcoFlow DELTA 3 Max Plus | 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 | ||
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
EcoFlow Stores
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Early Bird
EcoFlow DELTA Pro Ultra X
MSRP Price: $10,597.00 $7,999.00
100% Whole-Home Power Station: Delivers 12–36kW output and 12–180kWh capacity.Plug&Play design.Save up to $6000/year.
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