EcoFlow DELTA 3 Classic: how long for each device?
With a 1,024 Wh battery, here is what the EcoFlow DELTA 3 Classic can run, device by device, and what it cannot start.
- Battery
- 1,024 Wh
- Max power
- 1,800 W
| Device | Lasts | Starts it? |
|---|---|---|
| Fridge | ≈ 16 h | yes |
| Chest freezer | ≈ 17 h | yes |
| Internet router | ≈ 44 h | yes |
| CPAP machine | ≈ 4.9 nights | yes |
| Laptop | ≈ 12 h | yes |
| TV | ≈ 9.7 h | yes |
| LED lamp | ≈ 48 h | yes |
| Phone | ≈ 58 charges | yes |
It’s an estimate. We take the battery size the brand gives, remove 15% for losses, and use the device’s average draw. Yours may use more or less: check its label.
What this station is
The EcoFlow DELTA 3 Classic stores 1,024 Wh of energy, as announced by the brand. Its outlets can give up to 1,800 W at the same time: add up the watts of everything you plug in and stay under that number. It is a mid-size station: enough for a router, lights and phones over a day or more, and a fridge for some hours.
Its battery is LFP (lithium iron phosphate). This type usually keeps most of its capacity after thousands of charges, so it suits a station you use often.
During a power cut
A simple day without power: the internet router on for 24 hours, two LED lamps for 6 hours, a phone charging for 3 hours, and the station itself switched on. That comes to 606 Wh per day. The EcoFlow DELTA 3 Classic covers about 1.4 days of that.
Add an average fridge (45 W on average) and the EcoFlow DELTA 3 Classic keeps it going for about 16 h on its own, or 12 h with the basic needs above on top.
Charging it
The brand does not list a solar input for it. Charge it from a wall outlet before you need it, and top it up every few months.
Questions about this station
How many days of power cut does the EcoFlow DELTA 3 Classic cover?
About 1.4 days for the basics: router, two LED lamps, a phone and the station itself, 606 Wh per day. Each extra device shortens that time. Try your own list in the calculator.
How long can the EcoFlow DELTA 3 Classic run a fridge?
About 16 h for an average fridge (45 W on average), or 12 h if you also keep the router, two lamps and a phone going. A big or old fridge uses more.
Can the EcoFlow DELTA 3 Classic run a CPAP machine all night?
Yes. A CPAP without heated humidifier uses about 12 W. Over 8 hours, with the station itself switched on, that is 176 Wh per night, so about 4.9 nights. The heated humidifier uses much more: turn it off, or use the 12 V cable sold by the CPAP maker.