EcoFlow DELTA 3 Ultra 3072Wh Portable Power Station

The EcoFlow DELTA 3 Ultra delivers dependable, high-output portable power designed for home backup, outdoor use, and heavy-duty applications. With a robust 3072Wh capacity and advanced LFP battery technology, it offers long-lasting performance backed by enhanced safety features and EV-grade durability. Its fast charging options, powerful 3600W AC output, silent operation, and smart app controls make it a versatile energy solution for both emergency readiness and everyday use. Whether you need seamless UPS protection, whole-home integration, or efficient off-grid power, the DELTA 3 Ultra ensures reliable energy anywhere.

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[2]. 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.

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[2]. 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.

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.

Remote charging control for added peace of mind.

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.

Long-Lasting, Durable, Always Ready for Emergencies

Automotive-Grade Full-Tab LFP Cells

Rugged exterior and intelligent BMS for unmatched reliability

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.

Features

• Charge in Four Ways, Ready Fast: Recharge from 0-80% in just 89 minutes using wall charging or a generator, and extend runtime further with the EcoFlow Smart Generator.
• 3600W High-Power Output: Delivers up to 7200W surge power. X-Boost™ mode allows you to run demanding appliances up to 4600W, including steamers, dryers, lawnmowers, and electric cookware.
• Built for Longevity and Safety: Utilizes full-tab automotive-grade LFP cells, providing up to 10 years of dependable performance with a 24/7 BMS and EV-grade CTC structural protection against rough transport and environmental moisture.
• Home Integration Made Simple: Supports connection through a Manual Transfer Switch or an Inlet Box for seamless home backup.
• Ultra-Fast 10ms UPS: Keeps essential equipment such as servers and NAS systems running without interruption.
• Whisper-Quiet Operation: Operates at as low as ≤25dB at 600W for minimal disturbance.
• Smart Control with OASIS 3.0 App: Monitor battery status, energy use, and savings in real time. Storm Guard activates backup power before severe weather. Self-Powered Mode and programmable schedules help reduce daily energy costs.
• Extended Warranty Coverage: Comes with a 3-year standard warranty plus an additional 2 years when registered through the EcoFlow App.

Specifications

• Net Weight: 32.7 ± 0.6 kg
• Dimensions (H x— W x— D): 24.65 in x— 12.90 in x— 15.55 in
• Rated Capacity: 3072Wh, 51.2V, 60Ah
• Battery Type: LFP (LiFePO₄)
• AC Output: 120V~60Hz, 3600W total (7200W surge); 20A x— 4 max per port; 30A x— 1 max per port
• X-Boost Output: 4600W
• USB-A Output: 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): 5/9/12/15V-3A, 20V-2.25A, 45W max per port, total 45W
• Car Power Port: 12.6V, 10A, 126W max
• AC Input (Charging): 100-120V~15A, 50/60Hz
• Max Solar Input: 800W
• Optimal Operating Temperature: 68°F to 86°F
• Charging Temperature: 32°F to 113°F
• Discharge Temperature: 14°F to 113°F
• Storage Temperature: 14°F to 113°F
• Connectivity: Wi-Fi & Bluetooth
• EMC Rating: Class B
• UPS Response Time: <10ms
• Refrigerant: R600a

Key Specs

• Battery Capacity: 3072Wh
• AC Output: 3600W
• Solar Input: 800W
• Warranty: 5-years