EcoFlow DELTA 3 Series or DELTA 2 Series: Which Fits You Best
At EcoFlow, we believe power should be portable, reliable, and sustainable. The EcoFlow DELTA 2 Series is designed to meet everyday needs—whether for home backup, travel, or working off-grid. Explore how it compares to the advanced DELTA 3 Series and decide which portable power solution fits your lifestyle.
Why Do You Need a Portable Power Station
We’ve designed our portable power stations to support life’s moments—planned or unexpected. Whether you're camping in Snowdonia or facing a power cut at home, a portable power station gives you energy freedom without compromise.
Prepared for Emergencies
A DELTA power station offers reliable backup when it matters most. Whether you're powering lights, phones, Wi-Fi, or keeping essential appliances like fridges and medical devices running, it ensures you're never left in the dark.
Power for Adventures
Heading outdoors? Our power stations are perfect for campervans, festivals, and off-grid stays. With no fumes or noise, they offer a clean alternative to traditional generators—ideal for eco-conscious travellers.
Sustainable Backup Energy
Our LFP battery technology and solar charging options make sustainable energy accessible. Use solar to power your DELTA 2 series or DELTA 3 series, reduce your carbon footprint, and gain true off-grid independence.
What Is the EcoFlow DELTA Series
Our DELTA Series Power Stations are engineered to deliver reliable, fast, and expandable energy—at home or on the move. Each model offers distinct advantages depending on your power needs and usage style.
EcoFlow DELTA 3 Portable Power Station
For users who want flexible backup without overcomplication, EcoFlow DELTA 3 Portable Power Station offers 1024Wh of base capacity, 1800W output, and expandability up to 5kWh. It’s compact, quiet, and ready for a wide range of energy needs.
In real use, it can run essentials like a small fridge for several hours, keep lights on through the night, and recharge phones, tablets, and laptops many times over. Thanks to X-Boost, it can also power higher-wattage appliances like a kettle or electric hob.
With fast AC charging (up to 1500W), you can go from empty to full in under an hour. You’ll also find options for solar and car charging. Lightweight, low-noise, and easy to control via the EcoFlow app, DELTA 3 makes reliable energy simpler than ever.
EcoFlow DELTA 3 Portable Power Station
EcoFlow DELTA Pro 3 Portable Power Station
The EcoFlow DELTA Pro 3 Portable Power Station is our most advanced portable power solution yet, built to handle everything from daily energy needs to full-scale home backup. With a 4096Wh base capacity and 4000W continuous output, with a peak of 8000W, it powers high-demand appliances like air conditioners, EV chargers, and heavy-duty tools effortlessly.
For those needing even more, the system is fully expandable. Connect up to two extra batteries to reach 12kWh of storage, or link multiple units together for an energy setup that scales with your lifestyle or professional demands.
Charging is just as capable. You can reach 80% capacity in just 50 minutes via AC mains, or take advantage of up to 2600W of solar input to fully recharge in around 1.5 hours, making it equally suited for grid and off-grid scenarios.
To support this level of performance, the DELTA Pro 3 includes a complete range of ports: five AC outlets, multiple USB-A and USB-C ports, a car socket, an Anderson port, and more, giving you the flexibility to power virtually anything, anywhere.
Engineered with automotive-grade LFP battery cells rated for over 4,000 charge cycles and encased in an IP65-rated enclosure, it’s durable, weather-resistant, and remarkably quiet. With Wi-Fi, Bluetooth, and EcoFlow app integration, the EcoFlow DELTA Pro 3 Portable Power Station combines rugged reliability with intelligent control—designed for serious home backup, mobile work, or life completely off the grid.
EcoFlow DELTA Pro 3 Portable Power Station
EcoFlow DELTA 2 Portable Power Station
Designed for daily home use, short trips, or emergency prep, EcoFlow DELTA 2 Portable Power Station offers a 1024Wh capacity (expandable to 3kWh) and 1800W AC output. It’s compact, fast-charging, and ideal for powering up to 90% of household devices.
What does that mean in everyday use? With 1024Wh of storage, the Delta 2 can run a 10W light for 58 hours, power a mini fridge for 7–14 hours. It’s expandable, too—connect an extra battery to triple that runtime.
Its 1800W output handles high-use devices like kettles or microwaves, and smaller items like phones or routers are no trouble. Recharging is fast: 0 to 80% in just 50 minutes via mains. You can also use solar or car charging.
With multiple outlets and app control, it is easy to use, lightweight at 12kg, and perfect for home backup, trips, or anyone seeking portable power—no technical knowledge required.
EcoFlow DELTA 2 Max Portable Power Station
A powerful step up in capacity and performance, EcoFlow DELTA 2 Max Portable Power Station delivers 2048Wh of base storage and a 2400W AC output—enough to run high-demand appliances like kettles, microwaves, fridges, and power tools. It offers up to 14 hours of runtime for a full-size fridge and easily handles multiple devices at once.
Need more power? Expand the capacity to 6kWh by connecting up to two extra batteries—ideal for longer outages or off-grid stays. Recharging is fast and flexible: 0–80% in under an hour via mains, or fully charged in under three hours with solar.
Equipped with four AC outlets, multiple USB-A and USB-C ports, and a 12V car socket, it balances performance and portability at just 23kg. With app control, built-in Wi-Fi and Bluetooth, and long-lasting LFP battery chemistry, it’s a smart, dependable energy solution for everyday and emergency use.
Quick Comparison: DELTA 2 Series vs. DELTA 3 Series
Choosing between the DELTA 2 Series and DELTA 3 Series depends on your energy needs, upgrade plans, and how much system integration you want. Here’s how they stack up:
Feature | DELTA 2 | DELTA 2 Max | DELTA 3 | DELTA Pro 3 |
Base Capacity | 1024Wh | 2048Wh | 1024Wh | 4096Wh |
Expandable Capacity | Up to 3kWh | Up to 6kWh | Up to 5kWh | Up to 12kWh (or more with chaining) |
AC Output | 1800W (Surge 2700W) | 2400W (Surge 4800W) | 1800W (Surge 3600W) | 4000W (Surge 8000W) |
X-Boost Max Device Power | 2400W | 3100W | 2400W | 6000W |
Battery Chemistry | LFP (3000 cycles) | LFP (3000 cycles) | LFP (4000 cycles) | LFP (4000 cycles) |
Charging Speed | 0–80% in 50 min | 0–80% in 60 min | 0–100% in 56 min | 0–80% in 60 min |
Solar Input | 500W max | 1000W max | 500W max | 2600W max |
UPS Support | Yes, <30ms | Yes, \ | Yes, <10ms | Yes, <10ms (with NAS & HID support) |
USB-C Output | 2 ports, 100W max | 2 ports, Each 100W max | 2 ports, 100W max | 2 ports, 100W max |
NAS / HID Compatibility | No | No | No | Yes |
App Control / Smart Features | Yes | Yes | Yes | Yes |
Weight | 12kg | 23kg | 12.5kg | 51.5kg |
Use Case Fit | Entry-level, light use | Home backup, longer runtime | Lightweight + expandable backup | Whole-home & high-load backup |
To explore all models in one place, visit our Portable Power Station hub.
In-Depth Look at the DELTA 3 Series
The EcoFlow DELTA 3 Series Portable Power Station is designed for users who want flexible, intelligent energy—whether for smart home backup, travel, or off-grid systems. With three models in the lineup—DELTA 3 and DELTA Pro 3—you’ll find a solution that fits both light-duty needs and high-load scenarios.
DELTA 3 offers the core essentials: 1024Wh capacity, 1800W output, and expandability up to 5kWh. It’s lightweight and easy to manage, yet powerful enough to run appliances like fridges, routers, and cooking equipment.
DELTA Pro 3 steps into whole-home territory. With 4096Wh base capacity, 4000W output, and scalability up to 12kWh or more, it’s built for high-demand setups, handling everything from power tools and HVAC systems to EV charging and solar home storage. It includes full app control, IP65 weather resistance, and rapid recharging via AC or solar.
Whether you need portable power that travels light or a smart solution that scales with your system, the DELTA 3 Series delivers.
What Should You Consider Before Buying
Before selecting a model, it may help to consider the following:
Power Usage
Estimate how much power your devices require. DELTA 2 and DELTA 3 are suitable for light-to-moderate loads, while DELTA 2 Max and DELTA Pro 3 offer more capacity for extended use or higher power demands.
Device Sensitivity
If you're backing up computers, NAS systems, or similar devices, DELTA 3 and DELTA Pro 3 include UPS functionality with <10ms response time and HID/NAS compatibility.
Charging Preferences
All models support fast charging via AC. If you're relying on solar, DELTA Pro 3 allows higher input for quicker recharging, especially useful in off-grid situations.
Expandability
Consider future needs. DELTA 2 expands to 3kWh, DELTA 2 Max up to 6kWh, and the DELTA 3 Series up to 12kWh, depending on the model.
Final Verdict: DELTA 2 vs. DELTA 3
The DELTA 2 Series is well-suited for users who need straightforward, portable power for backup, travel, or occasional off-grid use. It offers solid performance in a lightweight form.
The DELTA 3 Series provides greater flexibility, system integration, and power capacity. It’s a better fit for users managing larger setups, sensitive electronics, or longer runtime requirements.
Both series support app connectivity, fast charging, and modular expansion. The right choice depends on how much power you need now—and how much flexibility you want later.
Still comparing options? Explore full specs, use cases, and accessories for each model on our home page, or reach out to our team to find the best fit for your setup.