EcoFlow DELTA 3 Classic (1024Wh)
50BatteryRank score · Balanced
$469as of
Insufficient price history← CompareCheck price on Amazon 
Check price on Amazon
EcoFlow DELTA 3 Classic (1024Wh) vs EcoFlow DELTA 3 Plus
Decision readout
Better station
EcoFlow DELTA 3 Plus leads by 22 points overall.
Better buy today
EcoFlow DELTA 3 Plus combines the performance lead with a favorable current price.
EcoFlow DELTA 3 Plus
72BatteryRank score · Excellent
$599as of
Great priceRecommended today
What changes the decision
- Home backup: EcoFlow DELTA 3 Plus — more AC-delivered capacity
- CPAP & bedroom: EcoFlow DELTA 3 Classic (1024Wh) — quieter under load
- Camping & RV: EcoFlow DELTA 3 Classic (1024Wh) — lighter and easier to carry
01 · Score evidence
Score breakdown
50
EcoFlow DELTA 3 Classic (1024Wh)
Overall
72
EcoFlow DELTA 3 Plus
39
POWER
EcoFlow DELTA 3 Plus +31
70
Battery-side usable capacity and how much you can run at once.
N/A
TRUST
Incomplete data
77
Owner reputation, safety record, warranty, and build durability.
61
CHARGING
EcoFlow DELTA 3 Plus +18
79
Wall and solar recharge speed.
68
LIVABILITY
EcoFlow DELTA 3 Classic (1024Wh) +11
57
Lightweight, portable, and quiet enough to live with.
Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.
02 · Usable energy
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
EcoFlow DELTA 3 Classic (1024Wh)
Rated (on the box)
1,024 Wh. Show source
claimed sourcemanuals.ecoflow.com ↗2026-07-27The marketing number — total cell capacity.
AC delivered (est.)
783 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
EcoFlow DELTA 3 Plus
Rated (on the box)
1,024 Wh. Show source
claimed sourceus.ecoflow.com ↗2026-07-04The marketing number — total cell capacity.
AC delivered (est.)
870 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
03 · Same assumptions
Same-device runtime
| Device | EcoFlow DELTA 3 Classic (1024Wh) | EcoFlow DELTA 3 Plus | Assumption |
|---|---|---|---|
| CPAP (humidifier off) | about 10.9 nights | about 12.1 nights | 9 W · |
| CPAP (heated humidifier on) | about 1.7 nights | about 1.9 nights | 56 W · |
| Refrigerator (full-size) | about 12 hours | about 14 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 44 hours | about 48 hours | 18 W · |
| Laptop (65W charger) | about 24 hours | about 27 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 39 full charges | about 43 full charges | 20 W · |
One device at a time; estimates use each station's usable AC energy. Build your own load →
04 · Sourced hardware
Key specs, side by side
| Spec | EcoFlow DELTA 3 Classic (1024Wh) | EcoFlow DELTA 3 Plus |
|---|---|---|
| AC-delivered capacity | 783 Whest.. Show sourceestimated sourcemanuals.ecoflow.com ↗2026-07-27 | 870 Whest.. Show sourceestimated sourceus.ecoflow.com ↗2026-07-04 |
| Continuous power output | 1,800 W. Show sourceclaimed sourcemanuals.ecoflow.com ↗ | 1,800 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Surge power output | 3,600 W. Show sourceclaimed sourcemanuals.ecoflow.com ↗ | 3,600 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Max solar input | 500 W. Show sourceclaimed sourcemanuals.ecoflow.com ↗ | 1,000 W. Show sourceclaimed sourceus.ecoflow.com ↗ |
| AC charge time (0–100%) | — | 56 min. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Weight | 12.1 kg. Show sourceclaimed sourcemanuals.ecoflow.com ↗ | 12.5 kg. Show sourceclaimed sourceus.ecoflow.com ↗ |
| Rated cycle life | — | 4,000 cycles. Show sourceclaimed sourceoutboundpower.com ↗ |
Only show differences
- AC-delivered capacity783 Wh870 Wh
- Max solar input500 W1,000 W
- AC charge time (0–100%)—56 min
- Weight12.1 kg12.5 kg
- Rated cycle life—4,000 cycles
Manufacturer figures unless marked verified or est. Tap or focus a figure to view its source. The better reading in each row is highlighted — lower wins for weight and recharge time.
05 · Tracked street price
Price & fair-price verdict
EcoFlow DELTA 3 Classic (1024Wh)
$469as of Insufficient price history
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- EcoFlow DELTA 3 Classic (1024Wh) #6 of 10 in Fastest AC-Charging Power Stations · #8 of 10 in Most Inverter Output per Pound
- EcoFlow DELTA 3 Plus #1 Midsize (1 kWh class) in Best Portable Power Stations · #1 of 10 in Best for Camping
Quick answers
- Is the EcoFlow DELTA 3 Classic (1024Wh) better than the EcoFlow DELTA 3 Plus?
- EcoFlow DELTA 3 Plus leads by 22 points overall. EcoFlow DELTA 3 Plus combines the performance lead with a favorable current price.
- Which has more usable capacity, the EcoFlow DELTA 3 Classic (1024Wh) or EcoFlow DELTA 3 Plus?
- The EcoFlow DELTA 3 Plus, by 87 Wh — 783 Wh versus 870 Wh, a 11% advantage. At a 60 W load that is roughly 1.5 extra hours before the battery is empty. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices, which is always less than the number on the box.
- Which has more AC output, the EcoFlow DELTA 3 Classic (1024Wh) or EcoFlow DELTA 3 Plus?
- Neither — both are rated 1,800 W continuous, so any load one can run, the other can too. Surge headroom follows the same order: 3,600 W against 3,600 W, and surge is what decides whether a compressor or pump actually starts.
- How does runtime compare between the EcoFlow DELTA 3 Classic (1024Wh) and EcoFlow DELTA 3 Plus?
- On the same sourced load — a refrigerator (full-size) — the EcoFlow DELTA 3 Plus runs longer: 13.8 hours against 12.4. These are planning estimates from each model's AC-delivered capacity, not stopwatch tests; real duty cycle and temperature move them.
- Which is lighter, the EcoFlow DELTA 3 Classic (1024Wh) or EcoFlow DELTA 3 Plus?
- They are effectively the same to carry — 12.1 kg against 12.5 kg. Neither is meaningfully easier to move, so portability should not decide this one.
- Which model should I buy for my use case?
- On the sub-scores that describe each use case: the EcoFlow DELTA 3 Plus for home backup; the EcoFlow DELTA 3 Classic (1024Wh) for cpap & bedroom, camping & rv. They split, so the honest answer depends on which of those you are actually buying for.
- Are the EcoFlow DELTA 3 Classic (1024Wh) and EcoFlow DELTA 3 Plus from the same lineup?
- Yes — same manufacturer, so warranty terms, app, accessory ecosystem, and expansion batteries are usually shared. That narrows the decision to the hardware differences above rather than to which company you want to buy into.
Keep deciding
- Full scorecard, specs & price for EcoFlow DELTA 3 Classic (1024Wh) →
- Full scorecard, specs & price for EcoFlow DELTA 3 Plus →
- See more alternatives to EcoFlow DELTA 3 Classic (1024Wh) →
- See more alternatives to EcoFlow DELTA 3 Plus →
- What size do you need? →
- Browse all rankings →
- Check device runtime evidence →
- Compare outage and trip load plans →
- Browse complete power kits →
- Capacity vs output explained →
- Battery cycle-life thresholds →
- UPS behavior explained →