EcoFlow Delta 3 Classic 1kWh Portable Power Station (084026, EFDELTA3C-EUCBox-L)

EcoFlow DELTA 3 Classic 1kWh Portable Power Station

Compact power with reliable performance

The EcoFlow DELTA 3 Classic is a compact power station with a 1 kWh capacity, 1800 W continuous output, and 3600 W surge power. It delivers stable and safe electricity for use at home, in the office, or outdoors. Fast AC charging allows it to reach 80% in about 45 minutes, so it’s quickly ready for action. The built-in UPS function with a switching time of up to 10 ms protects selected devices from sudden power outages. With quiet operation at around 30 dB and multiple safety protections, it can be used comfortably almost anywhere, anytime. It’s a dependable solution for unexpected situations and ensures your essential devices stay powered.

High power and capacity for everyday and emergency use

With a continuous output of up to 1800 W, the unit can power high-demand appliances such as kettles, microwaves, and coffee machines. It can also support devices like computers, routers, NAS servers, TVs, and refrigerators for extended periods thanks to its 1 kWh capacity. The X-Boost mode allows operation of devices up to 2600 W without system shutdown, making it ideal for emergencies, travel, camping, and more.

Four charging methods for maximum flexibility

One of the key advantages of the DELTA 3 Classic is its fast charging speed. Using an AC outlet, it charges from 0% to 80% in approximately 45 minutes. X-Stream technology intelligently adjusts voltage and power to ensure optimal performance while maintaining battery health. Additional charging options include solar panels up to 500 W, which can fully recharge the unit in about 2.5 hours, and a 500 W alternator charger with similar performance. It can also be charged using a Smart Generator, reaching 100% in about one hour. These multiple options allow you to adapt the power source to any situation—at home, on the road, at a cabin, or in an RV.

UPS protection with ultra-fast switching

In the event of a power outage, the station switches to backup power in as little as 10 ms. This is fast enough to keep servers, NAS systems, computers, and networking equipment running without interruption or data loss. It acts as a reliable home energy backup system that responds instantly.

Durable LFP battery for long lifespan

The station uses automotive-grade LFP battery cells with a full-tab design, reducing internal resistance, improving energy flow, and minimizing heat generation. This enhances efficiency and extends battery life. A smart Battery Management System (BMS) with an ARM Cortex chipset monitors performance in real time using advanced algorithms. The use of 16 cells per 1 kWh ensures stable operation and balanced load distribution, making it a durable and long-lasting solution.

Quiet operation and rugged design

With X-Quiet™ 3.0 technology, noise levels are kept around 30 dB—similar to a whisper or a ticking clock—making it suitable for home or office use without disturbance. The CTC (cell-to-chassis) construction increases durability and resistance to shocks during transport. The device performs reliably in demanding conditions, including extreme temperatures, humidity up to 95%, and environments with up to 5% salinity.

Portable and easy to carry

The EcoFlow DELTA 3 Classic combines strong performance with a compact and portable design. Weighing approximately 12.1 kg and measuring 398 × 200 × 283 mm, it features a practical handle for easy transport. It can serve both as a home backup power source and a mobile energy solution for garages, cabins, RVs, or outdoor trips.

Smart control with the EcoFlow app

The EcoFlow app allows you to monitor energy consumption and solar generation in real time. You can create charging and discharging schedules—for example, charging during off-peak hours and using energy during peak times to reduce costs. The Storm Guard feature automatically initiates charging when severe weather alerts are detected.

What’s included

• EcoFlow DELTA 3 Classic power station

• AC charging cable

• User manual and warranty card

Technical specifications

General

• Manufacturer: EcoFlow

• Model: DELTA 3 Classic

• Color: Gray

• Capacity: 1024 Wh

• Weight: 12.1 kg ± 0.3 kg

• Dimensions: 398 × 200 × 283 mm

• Total output ports: 6

AC output

• Maximum output power: 1800 W (230 V ~50 Hz)

• Surge power: 3600 W

• X-Boost mode: up to 2400 W

• Output voltage: 230 V

• UPS: 10 ms

• AC outlets: 3 (2 × 3-pin + 1 × 2-pin)

DC output

• USB-A Fast: 1 × 12 W

• USB-C: 1 × 100 W + 1 × 30 W

• 12 V DC output: not available

AC input

• Grid charging: 1400 W

• Generator charging: 1400 W

• Charging time (0–80%): approx. 45 min (Fast mode)

• Charging time (0–100%): approx. 60 min

• Input voltage: 220–240 V / 50–60 Hz

DC input

• Solar charging: up to 500 W

• DC input: 11–60 V, max. 500 W

• Alternator charger: XT60 port, 500 W

Battery

• Chemistry: LFP

• Lifespan: approx. 10 years

• Protection rating: IP20 (entire unit)

• CTC design: yes

• Expandable battery: no

Connectivity

• Display: yes

• Wi-Fi: yes

• Bluetooth: yes

• App support: yes (Storm mode, Bypass Unbind)

Operating conditions

• Noise level:

  • 600 W: <30 dB

  • 1200 W: <40 dB

  • Max: 50 dB

• Maximum altitude: 3000 m

• Discharge temperature: -10°C to 45°C

• Charging temperature: 0°C to 45°C

• Storage temperature: -10°C to 45°C (optimal: 20°C–30°C)

Battery protection

• Overvoltage protection

• Overload protection

• Overheating protection

• Short circuit protection

• Low temperature protection

• Low voltage protection

• Overcurrent protection