EcoFlow DELTA 2
EcoFlow DELTA 2 scores highest for Small Business Server / Network UPS, Home Theater & AV Backup and Baby Monitor & Nursery Backup, reaching 98/100 on its best-fit use-case.
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The EcoFlow DELTA 2 is a mid-size portable power station with a 1024Wh battery and a 1800W continuous AC output (2700W surge). Its inverter is confirmed pure sine wave, so it runs CPAP machines and pump motors safely. It scores 98/100 for small business server ups, its strongest fit in this dataset.
Best For
Full Specifications
| Brand | EcoFlow |
|---|---|
| Model | DELTA 2 |
| Category | expandable |
| Capacity | 1024 Wh |
| Continuous AC Output | 1800 W |
| Surge Output | 2700 W |
| Battery Chemistry | LiFePO4 |
| Inverter Type | Pure Sine Wave |
| Weight | 12.25 kg |
| Price | 449 USD |
| AC Recharge Time (0-100%) | Not stated |
| Max Solar Input | 500 W |
| Warranty | 5 years |
DELTA 2 carries EcoFlow’s 5-year tier (unlike the shorter-covered original DELTA/DELTA Max/DELTA Pro). See the full warranty comparison across all brands →
At 1800W continuous and 2700W surge, it can start a typical well or sump pump motor. Its 1024Wh battery runs a 75W CPAP with a heated humidifier for roughly 10.2 hours and a 100W mini-fridge for roughly 7.7 hours, after a 25% AC-inverter efficiency loss. At $449, that works out to $0.44 per watt-hour. It accepts up to 500W of solar input for off-grid recharging.
Can the EcoFlow DELTA 2 Run It? (Surge & Runtime Check)
Each row runs this unit's confirmed specs against that appliance's running watts and startup surge, then works out how long the battery would last at that load. Of these twelve: 10 safe, 1 tight, 1 overloaded.
| Appliance | Verdict | Runtime | |
|---|---|---|---|
| CPAP Machine (no humidifier) 30W |
✅ Safe Match | 25.6 h | Full check → |
| Full-Size Refrigerator / Freezer 200W / 600W surge |
✅ Safe Match | 3.8 h ~9.5 h cycling |
Full check → |
| Microwave Oven 1,200W |
✅ Safe Match | 0.6 h | Full check → |
| Hair Dryer (high heat) 1,800W |
⚠️ Tight Output Margin Clears the requirement, but with under 20% headroom on continuous output. It should work; it leaves little room for a harder-starting example of this appliance. |
0.4 h | Full check → |
| Coffee Maker 1,200W |
✅ Safe Match | 0.6 h | Full check → |
| Starlink Standard Dish + Router 100W |
✅ Safe Match | 7.7 h | Full check → |
| Sump Pump (standard) 700W / 2,000W surge |
✅ Safe Match | 1.1 h ~7.3 h cycling |
Full check → |
| Window Air Conditioner (standard) 800W / 2,010W surge |
✅ Safe Match | 1 h ~1.4 h cycling |
Full check → |
| Space Heater 1,500W |
✅ Safe Match | 0.5 h ~0.6 h cycling |
Full check → |
| Circular Saw (7-1/4 in, corded) 1,800W / 3,000W surge |
❌ Surge Too High 2700W surge rating is below the 3000W startup spike this appliance draws — the motor would not start even though the running watts fit. |
— | Need to run this? See the Anker SOLIX C1000 Gen 2 on Amazon → |
| Gaming PC + Monitor 600W |
✅ Safe Match | 1.3 h | Full check → |
| Laptop 65W |
✅ Safe Match | 11.8 h | Full check → |
Runtime applies the same 75% AC-inverter efficiency factor used across this site. Where an appliance cycles rather than running flat out — fridges, pumps, air conditioners — the second figure is the longer real-world runtime at its duty cycle. A blank runtime means the unit cannot run the load at all, so there is nothing to calculate. Appliance figures are typical for the class, not measurements of your specific model: check its nameplate where the margin is close.
☀️ Best Solar Panel Setup for the EcoFlow DELTA 2
| Maximum solar input | 500W — a ceiling, not a target |
|---|---|
| Setup that fills it | 1 × 400W + 1 × 100W (500W) |
| Realistic output in good sun | about 350W at 70% of rated |
| Full charge from empty | roughly 2.9 hours of direct sun |
That matches the input ceiling exactly. Additional panels beyond this will not charge the unit any faster.
🛒 Shop 400W Portable Solar Panels on Amazon → 🛒 Shop 100W Portable Solar Panels on Amazon →Check the voltage range, not just the watts. Wiring panels in series adds voltage, and exceeding the charge controller's maximum input voltage can damage the unit even when the total wattage looks fine. We have not verified the voltage window of any individual panel, so confirm it against this unit's specification before buying. How solar input limits work →
Pros & Cons
- Confirmed pure sine wave inverter — safe for CPAP and other sensitive electronics
- Expandable — can add battery packs to grow capacity over time
- Strong value at ~$0.44/Wh
- 5-year warranty — above average for this category
- None noted
Who Should Avoid This
No significant trade-offs stood out for the EcoFlow DELTA 2 in this dataset — the limits that apply are the ones that apply to the whole category.
Verdict: where the EcoFlow DELTA 2 fits
Its strongest scores in this dataset are for Small Business Server Ups, Home Theater Av, Baby Monitor Nursery Backup.
🛒 Check Today's Price & Clip Coupons on Amazon →Methodology & Sources
Verified: 2026-09-13 · Confidence: Medium · Method v1.0
- ac_recharge_time_hours: only a partial figure found (0-80% in 50 min) — left null rather than mixed definitions