EcoFlow DELTA 3 Max Series Portable Power Station (2048Wh)
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.

Common Features
- Long-Lasting, Durable, and Reliable: Equipped with automotive-grade full-tab LFP cells, offering 10 years of reliable power, 24/7 protection BMS, and EV-grade CTC structure that protects against overnight condensation and off-road bumps during transport.
- 10ms Auto-Switch: Fast enough to keep critical devices like NAS systems and servers running smoothly.
- 25dB Whisper-Quiet Operation: Ultra-low noise (≤25dB at 600W).
- 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 for effortless portability while still packing serious power.
- 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 Max Specifications
| 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 | 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 | Operating Humidity | 20%-95% |
4 Ways to Charge Up — Ready in Just 68 Mins
- Wall Charging
1800W Input, 0-80% in 68 mins. 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 68 mins. The EcoFlow Smart Generator 4000 (Dual Fuel) powers up DELTA 3 Max (2048Wh) for storms, outages, and off-grid living. - Solar Charging
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. - Alternator Charging
With the EcoFlow 500W Alternator Charger, get ready fast while on the move.
Automotive-Grade Full-Tab LFP Cells
Rugged exterior and intelligent BMS for unmatched reliability. From battery chemistry to structural design, DELTA 3 Max (2048Wh) 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 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. - Extreme Environment Resistance
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. - 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
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.
EcoFlow Stores
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