Quick Summary
The EF ECOFLOW DELTA 3 Classic is a portable power station with a 1024Wh LiFePO4 battery. It is described as delivering 1800W of continuous output and 3600W surge, with X-Boost stated to raise output to 2400W for heavier loads. The built-in UPS function is also part of the model, with a stated switch time of under 10 ms.
For buyers comparing portable power stations, the main checks here are capacity, output, charging method and whether the UPS function matches the devices you want to keep running.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | EF ECOFLOW – the brand name used for this model. |
| Model | DELTA 3 Classic – the model name to match when choosing an offer. |
| Product type | Portable power station – a self-contained power unit for portable or backup use. |
| Battery capacity | 1024Wh – a key figure for comparing storage capacity with your power needs. |
| Battery type | LiFePO4 battery – a battery chemistry stated for this model. |
| Continuous output | 1800W – important for checking the appliances you want to power. |
| Surge output | 3600W surge – relevant where equipment draws a higher start-up load. |
| Output with X-Boost | Up to 2400W – the stated higher output mode for heavier loads. |
| UPS function | Built-in UPS with under 10 ms switch time – relevant if uninterrupted power matters for connected devices. |
| Fast charging | X-Stream AC fast charging with a stated 0-80% charge time of 45 minutes. |
| Solar recharging | Stated solar recharge time of as little as 2.5 hours with a 500W solar panel. |
What to Compare Before Buying
- Capacity: The unit is rated at 1024Wh. Compare that with the amount of stored energy you need for your planned devices.
- Output: Continuous output is stated at 1800W, with 3600W surge and up to 2400W with X-Boost. Check the running and start-up demands of the equipment you want to connect.
- UPS use: The built-in UPS switches in under 10 ms. If you need backup for sensitive electronics, check whether that switching time suits your setup.
- Charging method: AC fast charging and solar recharging are both stated. Compare the charging option that suits where you plan to use the unit.
- Battery type: LiFePO4 is stated for this model. If battery chemistry matters to your buying decision, keep that in view when comparing alternatives.
Who This Product May Suit
This power station may suit buyers who want portable backup power with a stated 1024Wh capacity, AC fast charging, solar recharging and a built-in UPS function. It is also relevant if you need to compare output limits carefully against appliances with higher start-up loads.
What Else You May Need
If you plan to recharge by solar, the stated 500W solar panel figure means you will need a suitable panel setup for that charging method. For any backup-power use, check that the devices you want to run stay within the stated output figures.
Planning Your Backup Power Setup
A useful first step is to list the devices you want to keep powered, then compare each one against the stated capacity and output figures. For a backup setup, it also helps to decide which devices are essential and which are optional, so you can judge whether the 1024Wh rating is enough for your own priorities.
Before You Decide
Confirm the DELTA 3 Classic model, then check the 1024Wh capacity, the 1800W continuous output and whether the built-in UPS and charging options match your needs. If solar charging matters, also check the 500W panel requirement.





