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EcoFlow DELTA 3 Classic
Best all-rounder1 kWh+UPSFast chargingSolar 500 W+

EcoFlow

EcoFlow DELTA 3 Classic

EcoFlow's DELTA 3 without expansion, for $100 less.

4.7 (1,293)7.2/10
Capacity
1,024 Wh
Output
1,800 W
Surge
3,600 W
Weight
26.7 lb
Recharge
80% in 45 min
Solar in
500 W
$499.00$559.00−11%Amazon price as of Sep 27, 2026

In stock · 900+ bought last month · Sold by EcoFlow Inc.

Check price on Amazon

Our verdict

Our favorite all-rounder at $499 — as long as you don't need to expand it.

1,024 Wh, 1,800 W (3,600 W surge), a 10 ms UPS, 500 W solar and a 45-minute charge to 80% — the core DELTA 3 experience at $499, minus the extra-battery port.

Ideal for

Home backup for essentials, CPAP, van life and event power.

Skip it if

Anyone who may want to add capacity later.

Capacity6Output8Charging8Solar input7Portability4Battery life7Value9

Editor scores

How it rates

  • Capacity6
  • Output8
  • Charging8
  • Solar input7
  • Portability4
  • Battery life7
  • Value9

Scores are our editorial ratings (0–10), not manufacturer specs. How we score.

Specifications

Full spec sheet

Battery

Capacity1,024 Wh
Battery chemistryLiFePO4
Rated cycles—
Expandable to—

Output

AC output (continuous)1,800 W
Surge / peak3,600 W
AC outlets4
Fastest USB-C port100 W
30 A RV outlet—

Charging

Max AC charging input—
Full charge from the wall—
Charging speed (claimed)0–80% in 45 min from the wall
Max solar input500 W
UPS switchover10 ms

Size & build

Weight26.7 lb
Dimensions15.7 × 7.9 × 11.1 in
Noise (claimed)30 dB

Other

App controlEcoFlow app
Warranty5 years

Other details

X-BoostRuns resistive appliances up to 2,600 W
ExpansionNot compatible with DELTA 2 or DELTA 3 extra batteries
App modesStorm Alert, charging schedules, self-powered mode

How long it runs (estimates)

CPAP, no humidifier (40 W, 8 h a night)2.7 nights
CPAP + heated humidifier (90 W)1.2 nights
Wi-Fi router + modem (20 W)44 h
Full-size fridge (~1.3 kWh a day)17 h
Laptop (60 W)15 h
Phone charges (~15 Wh each)58 charges

Based on 1,024 Wh × 85% usable after inverter losses. Your devices may draw more or less — check yours in the calculator.

Will it run your devices?Check EcoFlow DELTA 3 Classic against your fridge, CPAP, router and anything else in the runtime calculator

Sources: Amazon listing (1,024 Wh, 1,800 W / 3,600 W surge, <10 ms UPS, 0–80% in 45 min, 500 W solar, 26.7 lb, 5-year warranty). A dash (—) means the value isn't published anywhere we could verify.

In-depth review

What it's like to own

The DELTA 3 Classic keeps what most people use: 1,800 W from four AC outlets, X-Boost for resistive loads up to 2,600 W, a 10 ms UPS for PCs and medical devices and fast X-Stream charging (80% in 45 minutes).

What you give up versus the $599 DELTA 3 is expansion — it can't take extra batteries — and a few outputs. Solar input is the same 500 W.

Owners power van-life setups, wedding photo booths and printers, and home outages; the only frequent complaint is the 26.7 lb weight. Its 90% five-star share is the highest in our catalog.

Pros

  • 1,800 W, 3,600 W surge
  • 10 ms UPS
  • 80% in 45 minutes
  • 90% five-star ratings

Cons

  • Not expandable
  • Heavier than Anker and BLUETTI rivals
  • Cycle rating not stated on the listing
See it on Amazon

Owner reviews

What buyers say

4.7 (1,293)
  • 5★90%
  • 4★4%
  • 3★1%
  • 2★1%
  • 1★4%

4.7★ from 1,293 ratings (94% 4–5 stars). Owners praise reliability for van life, weddings and outages, the fast charging and the useful app; a few mention it's heavy to carry.

5.0Jul 28, 2026

Reliable and efficient for van life.

— Deena Wilson, Amazon.com

5.0Jul 29, 2026

Runs wedding-ceremony gear and a photo-booth printer without issue.

— Cesar Martinez, Amazon.com

5.0Sep 6, 2026

Great for camping and outages; only downside is the weight.

— Iván Guerra Toledo, Amazon.com

Owner reviews from Amazon.com, summarized in our words. Ratings as of Sep 27, 2026.

Ready to decide?

Check today's price and delivery date on Amazon, or stack it against the alternatives.

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