Strong Output
1800W rated output
3600W surge output
45 Mins Fast Charge
AC charges to 80% in just 45 minutes
Works Anywhere you go
Fast Emergency Power Switching
<10ms UPS
Ultra-Quiet Performance
As low as 30dB under light load — ideal for outdoor, camping, and night-time use
10-Year Lifespan [1]
EV-grade full-tab LFP batteries
Smarter & Safer Power Management with BMS
ARM Cortex chipset
Cloud Intelligence Algorithm
EcoFlow’s Best-Value 1 kWh Portable Power Station
Smart choice for your outdoor adventures and work
1800W Output, 3600W Surge — Power Essentials Without Compromise
EcoFlow DELTA 3 Classic delivers a steady 1800W pure sine wave output with grid-level stability—built to handle demanding outdoor and professional equipment with confidence. [2] With X-Boost™ mode, it supports devices up to 2400W without tripping or slowing down—giving you seamless power for the moments that matter.
Camping
Fishing
Photography
A New Level of Fast
Ultra-versatile 3 charging options, 45-minute fast charge.
Remote AC charging, keeping your portable power ready whenever and wherever you need it.
X-Stream: Ready in Just 45 Mins
DELTA 3 Classic (1024Wh) charges from 0–80% in just 45 minutes with AC charging. It keeps you powered faster, smarter, and with greater peace of mind—whether 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. [3]
3 Ways to Charge—Anytime, Anywhere
AC Charging
Solar Charging
Car Charging
Compact, Portable — Works Anywhere You Go
Lightweight and easy to carry, DELTA 3 Classic fits seamlessly into outdoor, mobile, and professional setups. Take it with you for camping, field work, filming, or any situation where reliable portable power is essential.
Fast Emergency Power Switching. No Interruptions.
When the power source changes, DELTA 3 Classic responds in as fast as 10 milliseconds—helping maintain continuous operation for critical outdoor and professional equipment. Designed to reduce interruptions during power transitions, it supports stable performance for sensitive devices in mobile and field environments.
Automotive-grade Full-Tab LFP Cells: Next-Level Battery Reliability
DELTA 3 Classic is equipped with automotive-grade full-tab LFP cells. The full-tab design reduces resistance, enhances efficiency and safety, and provides higher capacity with less heat, resulting in a long battery lifespan.
25% more
efficient power flow (thanks to lower resistance: 1.5 mΩ vs. 2 mΩ) [6]
25% less
self-heating [7]
Unrivaled Balance for Unmatched Battery Longevity
With 27% fewer cells per kWh, [8] our 16-cell design runs cooler, lasts longer, and delivers greater stability. Each cell is rigorously tested for capacity, voltage, and internal resistance—resulting in a highly uniform pack that protects against overcharging, imbalance, and premature wear.
16-cell uniform set per 1 kWh
Rigorously tested for capacity, voltage, and internal resistance
10-Year Lifespan, Built to Last
From battery chemistry to structural design, DELTA 3 Classic is engineered for extreme durability, environmental resilience, and whisper-quiet performance—delivering power you can count on for over 10 years.
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.
Output
Solar Generation
Scheduled Tasks