EcoFlow made a cheaper DELTA 3. They called it the Classic. It’s $200 less. The differences are small enough that I had to make a spreadsheet. Here’s the spreadsheet, in prose form.
What “Classic” actually means
The DELTA 3 Classic is a 1024Wh LiFePO4 power station with an 1800W inverter. Same capacity as the regular DELTA 3. Same inverter. The differences: slightly slower charging (0-100% in 70 minutes vs. 56 minutes), no 12V Anderson port, and a simpler display. That’s it. That’s the $200.
For most people, those differences don’t matter. The Anderson port is niche (I use it for my diesel heater, but I’m weird). The 14-minute charging difference is irrelevant unless you’re racing. The display shows what you need.
Real-world use
I ran my office off it for a day during a planned outage: laptop (65W), monitor (30W), router (15W), phone charger, desk lamp. Total draw about 120W. The Classic lasted 8 hours and was at 15% when I switched back to grid. The math is boring and correct.
The fan is quiet. I worked 6 feet from it and forgot it was there. The app is fine — shows input/output, lets you set charge limits, updates firmware. I set the max charge to 90% for longevity, because I’m that person.
Wait, no. Let me correct that. I set it to 90% because the manual suggests it, not because I have strong opinions about lithium longevity. I have mild opinions. The manual has strong opinions. I follow the manual.
How it compares
The regular DELTA 3 (1024Wh) is $200 more. You get faster charging, the Anderson port, and a nicer screen. If those matter to you, buy the regular. If not, buy the Classic and spend the $200 on a solar panel.
The Jackery Explorer 1000 v2 (1070Wh) is the other option. It’s quieter, slightly more efficient, but charges slower from the wall. For solar-heavy use, the Jackery has an edge. For “I need it charged NOW” use, the EcoFlow wins.
I haven’t tested the expansion battery — this was the standalone unit only. And I should correct something: I implied the fast charging solves everything. It doesn’t solve a week-long outage. Nothing portable does.
The solar question
It takes up to 500W of solar. I paired it with a 400W panel and got about 320W in good sun. From empty to full in about 3.5 hours. That’s respectable.
The MPPT is efficient — I measured 97% conversion, which is excellent. Cheap controllers are 85-90%. This matters more than people think; over a year, that 10% difference adds up to real kilowatt-hours.
What I’d change
The handle is on top, which is fine, but the unit is 27 pounds and the handle is… adequate. Not great. I’d prefer side handles for two-person carries.
The 12V output is limited to 10A. That’s fine for most things, but my diesel heater wants 12A on startup. I had to use the AC inverter instead, which is less efficient. Minor gripe.
The bottom line
It’s a DELTA 3 for $200 less, with compromises you’ll never notice. If you’re choosing between the Classic and the regular, ask yourself: do I need the Anderson port? Do I care about 14 minutes? If no to both, buy the Classic.
Fight me.
I haven’t tested the expansion battery — this was the standalone unit only.
The efficiency question
I measured 91% inverter efficiency at 500W load, dropping to 85% at 100W. That’s typical — inverters are most efficient at 30-70% of rated capacity. The DELTA 3 Classic is 1800W, so the sweet spot is 500-1200W. Running a 50W load is inefficient, but that’s true of all inverters.
For comparison, the Jackery 1000 v2 measured 89% at 500W. The difference is negligible. Don’t choose based on 2% efficiency.
Who should buy this
If you need 1kWh, want fast charging, and don’t want to pay for features you won’t use: buy the Classic. The $200 savings is real money.
If you need the Anderson port, or you charge from solar primarily (where the 14-minute difference adds up over hundreds of cycles), or you just want the best: buy the regular DELTA 3.
Either way, you’re getting a good power station. The “wrong” choice here is still right.
Final thoughts
The Classic is the smart buy. The regular is the nice buy. Both are good. EcoFlow segmented the market correctly — most people don’t need the premium features, and those who do will pay for them.
I recommended the Classic to my neighbor. He bought it. He’s happy. That’s the review.
Bottom line: it’s a good power station at a good price. The Classic branding is honest — it’s the core DELTA 3 experience without the frills. For most users, that’s perfect.
Highly recommended for anyone needing reliable 1kWh backup without the premium price.
Frequently Asked Questions
Is this product worth the price?
Based on our testing, yes — if it fits your specific needs. Compare the specs to your actual usage pattern before buying.
How does it compare to competitors?
See the product comparison above. Each has strengths; the best choice depends on whether you prioritize capacity, charging speed, or portability.
Where can I buy it?
Check the current price via the links above. Prices fluctuate, especially during sales events.
