EcoFlow’s Best-Value 1 kWh Portable Power Station
Smart choice for your outdoor adventures and work
10ms Auto-Switch. Zero Interruptions.
When the power drops, DELTA 3 Classic responds in just 10 milliseconds—fast enough to keep critical devices like NAS systems and servers running smoothly. No data loss. No downtime. Just uninterrupted peace of mind.
Automotive-Grade Full-Tab LFP Cells
Rugged exterior and intelligent BMS for unmatched reliability
10-Year Lifespan, Built to Last
From battery chemistry to structural design, DELTA 3 Classic (1024Wh) is engineered for extreme durability, environmental resilience, and whisper-quiet performance—delivering power you can count on for over 10 years. [1]
Compact, Portable — Works Anywhere
Lightweight and easy to carry, DELTA 3 Classic (1024Wh) fits seamlessly into any setting, from your road trips 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.
Explore EcoFlow 1kWh Power Stations
1024Wh
1024Wh
1024Wh
398mm × 200mm × 283mm
Approx. 397.6 × 202 × 283.6mm
Approx. 397.6 × 202 × 283.6mm
12.1kg±0.3kg
Approx. 12.5kg
Approx. 12.5kg
1800W
1800W
1800W
USB-A: 1 × 18W Max
USB-C: 1 × 100W Max, 1 × 30W Max
USB-A: 2 × 18W Max
USB-C: 2 × 100W Max
USB-A: 2 × 36W Max
USB-C: 2 × 140W Max
NO
YES (Car Power Output
and DC5521)
YES (Car Power Output
and DC5521)
5
13
13
1400W
1500W
1500W
500W
500W
1000W
YES
YES
YES
NO
YES. 1-5kWh
YES. 1-5kWh
Specs
Color
Light Gray
Capacity
1024Wh
Net Weight
12.1kg±0.3kg
Dimensions
398*200*283mm
Total Output Ports
5
Max AC Output
1800W230V~50Hz
Surge Output
3600W
Max Output by X-Boost
2400W
Output Voltage
230V
UPS
10ms, UPS
Number of AC Outlets
2
USB-A-Fast
1*12W
USB-C
1*100w+1*30W
12V DC Output
None
Utility Power Charging
1400W
Generator Charging
1400W
0-80% Charge Time
Fast Mode: 45min
0-100% Charge Time
60 min
Input Voltage
220-240V~50/60Hz
Solar Charging
500W Max
Alternator Charging
PV-based XT60 Port, 500w Alternator Charger
Battery Chemistry
LFP
Cycle Life
10 years
IP Rate for Battery Pack
IP20 for complete product
CTC Craftsmanship
YES
Extra Battery Port
NONE
Extra Battery
NONE
Max Capacity with Extra Battery
NONE
Wi-Fi
YES
Bluetooth
YES
App
YES
Warranty
3+2 years
Noise
600W <30dB
200W <40dB
Maximum capacity 50dB
Operating Altitude
≤3000m
Discharge Temperature
-10 to 45°C
Charge Temperature
0-45℃
Storage Temperature
-10 to 45°C
1. Based on proper product usage, DELTA 3 Classic 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. Single-appliance runtime based on ideal conditions; actual results may vary.
3. 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.
4. Feature requires preset activation via the EcoFlow App.
5. EcoFlow 500W Alternator Charger is sold separately.
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.
8. Compared with the previous usage of EF #C33 Battery Cell.
9. Unless otherwise noted, all above 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.
10. Noise levels measured at 0.5m under 25°C ambient: <30dB (600W) for charging/discharging.
11. 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.



