EcoFlow DELTA 3 Classic
Premium portable power, without the premium price - 1kWh of dependable backup, ready in 45 minutes.
X-Stream: Ready in Just 45 Mins
DELTA 3 Classic (1024Wh) charges from 0–80% in just 45 minutes and fully charges in 60 minutes with AC charging. It keeps you powered faster, smarter, and with greater peace of mind—whether indoors, outdoors, or on the move. X-Stream enables ultra-fast charging without compromising battery life. It intelligently adjusts voltage and power to ensure safe, high-speed recharging. With X-Stream, you’re ready in just 45 minutes.[2]
Recharge fast, three ways.
From flat to ready before you've finished packing.
Recharge fast, three ways.
From flat to ready before you've finished packing.
Recharge fast, three ways.
From flat to ready before you've finished packing.
Run the things that matter.
1800W output (3600W surge), with EcoFlow X-Boost up to 2400W.
EcoFlow DELTA 3 Classic (1024Wh) delivers a steady 1800W pure sine wave output with grid-level stability—enough to handle high-demand appliances like microwaves and power tools [5]. With X-Boost™ mode, it supports devices up to 2400W without tripping or slowing down—giving you seamless power for the moments that matter.
Run the things that matter.
1800W output (3600W surge), with EcoFlow X-Boost up to 2400W.
EcoFlow DELTA 3 Classic (1024Wh) delivers a steady 1800W pure sine wave output with grid-level stability—enough to handle high-demand appliances like microwaves and power tools [5]. With X-Boost™ mode, it supports devices up to 2400W without tripping or slowing down—giving you seamless power for the moments that matter.
Run the things that matter.
1800W output (3600W surge), with EcoFlow X-Boost up to 2400W.
EcoFlow DELTA 3 Classic (1024Wh) delivers a steady 1800W pure sine wave output with grid-level stability—enough to handle high-demand appliances like microwaves and power tools [5]. With X-Boost™ mode, it supports devices up to 2400W without tripping or slowing down—giving you seamless power for the moments that matter.
Less than 10ms backup, automatically.
When the grid drops, DELTA 3 Classic switches to battery in under 10 milliseconds - fast enough to keep desktops, modems and other sensitive gear running without a flicker. Set it up as an everyday UPS and you may never notice the next outage.
Quiet enough to forget it's on.
At 30dB or less, the Classic runs barely above a whisper. Inside a tent, a caravan or beside your desk, it won't disrupt sleep or focus.
Built to last.
Premium LFP cells and smart protection, inside and out.
DELTA 3 Classic uses long-life LiFePO4 (LFP) cells built for years of dependable use - for up to 10 years of reliable power. Fast charging, without trading away longevity. An intelligent Battery Management System constantly monitors temperature, voltage and current, guarding against overcharge, over-discharge, short circuits and overheating - so your power stays safe and steady.
Compact, Portable — Works Anywhere
Lightweight and easy to carry, DELTA 3 Classic (1024Wh) fits seamlessly into any setting, from your home to the great outdoors.
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.
Delta 3 Classic Compatibility
Specs
Capacity
1024Wh
Max. Output Power
1800W (surge 3600W)
Max Device(s) Power (with X-Boost)
2400W
Total Output Ports
4
AC Output
2 × AC outlets, 230V, 1800W (surge 3600W)
USB-A Output
1 port, 18W Max
USB-C Output
1 port, 100W Max
AC Charging
1400W, 0-100% in 60 min (0-80% in 45 min)
Solar Charging
500W Max, 0-100% in approx. 2.5 hrs
Alternator Charging
With 500W Alternator Charger, 0-100% in approx. 2.5 hrs
Battery Chemistry
LFP
UPS
<10ms
Noise Level
≤30dB
IP Rating
IP20
Wi-Fi & Bluetooth
Yes
App
Yes (Storm Warning Mode)
Screen
Yes
Net Weight
Approx. 12.1 kg
Dimensions
Approx. 398 × 200 × 283 mm
Warranty
5 Years
FAQ
The DELTA 3 Classic comes with a 5-year warranty.
It has a 1024Wh (around 1kWh) battery - enough to keep essentials like a fridge, lights, Wi-Fi and devices running through a power cut, or to power a weekend away from the grid.
From a standard wall socket it charges 0-80% in about 45 minutes, and to 100% in around 60 minutes (1400W AC input). With EcoFlow solar panels you can reach a full charge in roughly 2.5 hours of good sun.
The Classic delivers 1800W of continuous AC output (3600W surge). With EcoFlow's X-Boost it can also drive higher-draw resistive appliances up to 2400W - covering most everyday gear like a fridge, TV, laptop, lights, power tools and small kitchen appliances.
X-Boost is switched on in the EcoFlow app. When enabled, it lets the Classic run selected high-wattage resistive appliances (such as a jug or heater) that would otherwise exceed its 1800W rated output, up to 2400W.
No - the DELTA 3 Classic has a fixed 1024Wh capacity and isn't expandable. If you need expandable capacity, look at the larger models in the EcoFlow DELTA range.
Yes. Used as an uninterruptible power supply, it switches to battery in under 10 milliseconds when the grid drops - fast enough to keep desktop computers, modems and other sensitive electronics running without interruption.
Very quiet - 30dB or less in normal operation, around the level of a soft whisper. It's comfortable to run inside a tent, a caravan, or beside your desk.
It uses long-life LFP (LiFePO4) cells, chosen for their safety and longevity, and rated for up to 10 years of reliable use.
The Classic is rated IP20, so it's built for indoor and sheltered use. It's great for camping or the worksite, but keep it dry and protected from rain, dust and moisture.
Yes. The Classic tops up its own battery whenever it's plugged in, even with the outputs switched off. It also supports pass-through, so it can recharge while powering your devices at the same time.
It can run many low-draw devices such as a CPAP machine, but we don't recommend relying on it as the sole power source for life-critical medical equipment. Always check with your device manufacturer first.
NOTES
[1] Based on proper product usage, DELTA 3 Classic (1024Wh) 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.
[2] 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.
[3] Feature requires preset activation via the EcoFlow App.
[4] EcoFlow 500W Alternator Charger is sold separately.
[5] Single-appliance runtime based on ideal conditions; actual results may vary.
[6] Refers to the internal resistance of EF Full-Tab LFP Cells being 1.5mΩ, which is 25% lower than the 2mΩ internal resistance of the previous EF #C33 Battery Cell.
[7] A 25% reduction in single-cell internal resistance. According to the heat generation formula Q = I²Rt, under the same current, a 25% reduction in resistance leads to a proportional 25% decrease in heat generation.
[9] 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.