DELTA 3 Max Series Portable Power Station | EcoFlow US | DELTA 3 Max (2048Wh) / DELTA 3 Max (2048Wh) + 250W Solar Panel

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2400W Output— Powerful. Stable. Built to Handle It All

EcoFlow DELTA 3 Max (2048Wh) delivers 2400W AC rated output. With X-Boost™ 3.0 technology, it supports devices up to 3400W—effortlessly taking on your heavy-duty appliances. The inverter samples AC voltage and current every 33μs with high precision using a DSP chip, ensuring pure sine wave output with beyond grid-level stability—ideal for powering sensitive electronics reliably.

Kitchen

Living Room

Office

Garage

Laundry Room

RV Camping

4 Ways to Charge Up — Ready in Just 68 Mins

Remote charging control for added peace of mind.

Wall Charging

Generator Charging

Solar Charging

Alternator Charging

1800W Input, 0-80% in 68 mins^[3]. EcoFlow’s exclusive Storm Guard Mode^[4] 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.

With 1800W input, recharge to 80% in just 68 mins^[1]. The EcoFlow Smart Generator 4000 (Dual Fuel) powers up DELTA 3 Max (2048Wh) for storms, outages, and off-grid living^[5].

500W Input, 0-80% in 3.43 hrs. Pair it with EcoFlow Solar Panels (25% high-efficiency) for reliable power during camping trips, van life, or off-grid living^[6].

With the EcoFlow 500W Alternator Charger^[7], 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 Max (2048Wh) is engineered for extreme durability, environmental resilience, and whisper-quiet performance.

25dB Whisper-Quiet Operation Under Loads [9]

Smart, 24/7 Battery Protection

EV-Grade CTC Structure

Extreme Environment Resistance

Class B EMC Certification

25dB Whisper-Quiet Operation Under Loads ^[9]

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.

Built with a cell-to-chassis (CTC) structure, DELTA 3 Max (2048Wh) is drop-resistant and shockproof—protecting against overnight condensation and off-road bumps during transport. You get stable power even in the most demanding conditions.

DELTA 3 Max (2048Wh) keeps your power flowing through freezing cold, scorching heat, humid environments (95% humidity tolerance), or coastal air—for reliable energy anytime, anywhere^[8].

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

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.

Compact, Portable, Lighter than Ever — Works Anywhere

Lightweight and easy to carry, DELTA 3 Max (2048Wh) fits into any setting—from home to the great outdoors. Weighing just 20.3 kg, it’s 13% lighter^[10] for effortless portability while still packing serious power.

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, discharge during peak rate periods to save costs.

User Story

Compatibility

*Compatibility note: Reverse charging and battery preservation modes rely on XT150 or 4+8 pin communication cables. DELTA 3 Max features an XT60 port only, making these functions unavailable.

What's In The Box?

1. 0-80% in 68 minutes was measured in optimal conditions using AC charging with X-Stream Fast Charging mode on.
2. Based on proper product usage, DELTA 3 Max (2048Wh) is estimated to have a lifespan of approximately 10 years, according to internal simulation test data. This information is for reference only; actual user experience may vary.
3. All charging speed data comes from EcoFlow Labs and is for reference only. The actual data may vary slightly depending on the usage environment, device condition, software version, and other factors.
4. Feature requires preset activation via the EcoFlow App.
5. EcoFlow Smart Generators are sold separately.
6. EcoFlow Solar Panels are sold separately.
7. EcoFlow 500W Alternator Charger is sold separately.
8. Unless otherwise noted, all images, videos, and screen display contents about the product itself on this page are for reference only. Actual product effects (including but not limited to appearance, color, and size) and screen display contents (including but not limited to backgrounds, UI, and illustrations) may vary.
9. Noise levels measured at 1m under 25°C ambient: ≤25dB (600W) for charging/discharging.
10. Compared with EcoFlow DELTA 2 Max

Specs

Net Weight

20.3+0.4kg

Dimensions (HWD)

494mm×239mm×305mm

Rated Capacity

2048Wh 51.2V 40Ah

Cell Chemistry

LFP (LiFePO4)

AC Output

120V 60Hz 2400W total, 20A (x4) Max per
port

X-Boost

3400W

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--5A, 100W Max
USB-C (x2): 5/9V-3A, 15V-2A,30W Max per port, total 30W

Cigarette Lighter Output Port

12.6V, 10A, 126W Max

AC Input (Charge Only)

100-120V~15A 50/60Hz

Maximum PV Input Power(W)

500W

Charge Temperature

0°C-45°C (32°F-113°F)

Discharge Temperature

-10 to 45°C (14°F-113°F)

Operating Humidity

20%-95%

Warranty

5-Year Warranty
*Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration.

Communication Method

Wifi 2.4GHz/ Bluetooth5.0

EMC

Class B

UPS

<10ms

Review

Questions