
Specifications
EcoFlow DELTA 3 Classic – Light Gray
The EcoFlow DELTA 3 Classic is a powerful, reliable, and ultra-quiet portable power station built for modern energy needs. Delivering up to 1800W continuous output with 3600W surge, it can power home essentials, outdoor gear, and sensitive electronics with grid-like stability. Designed with X-Stream fast charging, the DELTA 3 Classic recharges up to 80% in just 45 minutes and supports multiple recharging methods — AC, solar, car, and smart generator.
Built for long-term durability, it features an automotive-grade LFP battery with up to a 10-year lifespan and a robust AI-powered Battery Management System (BMS) that provides 40+ layers of protection. Seamlessly controlled via the EcoFlow App, it offers advanced energy monitoring, smart backup, scheduled charging, and integration with other EcoFlow devices.

EcoFlow DELTA 3 Classic – Light Gray Features
Fast Recharge – Up to 80% in 45 Minutes - X-Stream fast charging technology lets you power up quickly, reaching 80% in just 45 minutes and 100% in an hour.
Powerful Output – 1800W Rated / 3600W Surge - Run home appliances, outdoor gear, and heavy-duty tools with stable pure sine wave power and X-Boost™ support.
Ultra-Quiet & Safe – Whisper-Quiet Operation & AI BMS - Operates as low as 30dB and features 40+ built-in safety protections, including overcharge, overheat, and short-circuit protection.
Durable LFP Battery – 10-Year Lifespan - Long-lasting lithium iron phosphate cells provide up to a decade of reliable energy with improved cycle life and stability.
Smart App Control – EcoFlow Oasis & Storm Guard - Monitor, control, and optimize energy remotely. Set off-peak charging, receive storm alerts, and maximize savings from your phone.
Versatile Charging – AC, Solar, Car & Generator Options - Stay powered anywhere with multiple charging methods, including solar input up to 500W and car alternator charging.
Reliable Backup – 10ms Uninterruptible Power Supply (UPS) - Automatically keeps sensitive devices like computers, servers, and CPAP machines running during outages without interruption.

EcoFlow DELTA 3 Classic – Light Gray Applications
- Home Backup – Power essential appliances during outages.
- Outdoor Adventures – Keep your electronics and camping gear running.
- Work Sites – Supply reliable energy to tools and equipment.
- RV & Vanlife – Off-grid power for vehicles and travel.
- Emergency Preparedness – Stay ready with dependable portable energy.


What's Included
Everything you need is included with your product.
- 1 x EcoFlow DELTA 3 Classic portable power station
- 1 x AC Charging Cable
- 1 x Manual
- 1 x Warranty Card

Warranty
- 10-year lifespan up to 5-year warranty
EcoFlow DELTA 3 1500 Specifications
| Specification | Details |
| Model | EF-DL3-C |
| Net Weight | Approx. 12.1 kg (26.6 lbs) |
| Dimensions (W x D x H) | Approx. 398 × 200 × 283 mm (15.6 × 7.8 × 11.2 in.) |
| Wi-Fi (2.4G) | Frequency (EU): 2412-2472MHz, 2422-2462MHz Maximum output power (EU): < 18.24 dBm |
| Bluetooth | Frequency (EU): 2402-2480MHz Maximum output power (EU): < 20 dBm |
| Operating Altitude | < 3000 m ( 9842 ft) |
| Overvoltage Category | II |
| Pollution Degree | 2 |
Output
| Specification | Details |
| AC Output Socket (Discharge Only) | Pure sine wave, total 1800W, surge 3000W | US/CA: 120V ~| CN/KR: 220V ~ | EU/UK/AU/CH/ZA: 230V ~| JP: 100V~ (total 1500W, surge 3000W) |
| DC Output Port (USBA) | 5V⎓3A, 9V⎓2A,12V⎓1.5A, 18W Max |
| DC Output Port (USBC) | USB-C1: 5/9/12/15V⎓3A, 20V⎓5A, 100W Max | USB-C2: 5/9V⎓3A,15V⎓2A,30W Max |
Input
| Specification | Details |
| AC Input Socket | US/JP: 100-120V~15A (50Hz/60Hz) | CN/EU/UK/AU/CH/ZA/KR: 220-240V~10A (50Hz/60Hz) |
| DC Input Port (XT60) | Solar Input: 11-60V⎓15A, 500W Max | Car Input: 12V⎓8A 96W Max |
Battery Info
| Specification | Details |
| Rated Capacity | 1024Wh (51.2V⎓20Ah) |
| Cell Chemistry | LFP (LiFePO₄) |
| Protection Type | Over Voltage Protection, Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection |
Environment
| Specification | Details |
| Optimal Operating Temperature | 20°C-30°C (68°F-86°F) |
| Charge Temperature | 0°C-45°C (32°F-113°F) |
| Discharge Temperature | –10°C to 45°C (14°F-113°F) |
| Storage Temperature | –10°C to 45°C (optimal: 20°C to 30°C) | 14°F to 113°F (optimal: 68°F to 86°F) |
Frequently-Asked Questions
How long can the EcoFlow DELTA 3 Classic power my devices?
Runtime depends on the total wattage of the devices. For example, a 100W appliance can run for about 10 hours with the 1024Wh capacity.
Can I expand the battery capacity?
Yes, the DELTA 3 Classic can be expanded up to 2kWh or more (depending on the compatible expansion modules offered by EcoFlow).
Can it be charged while powering devices?
Absolutely. DELTA 3 Classic supports pass-through charging, so you can recharge it while it continues to power your devices.
Is it safe for indoor use?
Yes. The DELTA 3 Classic uses safe LiFePO4 chemistry, has low noise operation, and zero emissions, making it ideal for indoor or enclosed spaces.
What solar panels can I use?
You can use any compatible solar panels up to 500W total input with the appropriate connectors.