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EcoFlow DELTA 3 Max Plus
1 kWh+2 kWh+UPSFast chargingSolar 500 W+Expandable

EcoFlow

EcoFlow DELTA 3 Max Plus

2 kWh today, 10 kWh later, with 3,000 W of output.

4.6 (97)7.1/10
Capacity
2,048 Wh
Output
3,000 W
Surge
6,000 W
Weight
49 lb
Recharge
80% in 43 min
Solar in
1,000 W
$1,149.00$1,899.00−39%Amazon price as of Sep 27, 2026

In stock · 100+ bought last month · Sold by Amazon.com

Check price on Amazon

Our verdict

Worth it only if you'll use the expansion port and the extra output.

The DELTA 3 Max with the upgrades that matter for home backup: 3,000 W output (6,000 W surge), 1,000 W solar and an expansion port to 10 kWh. It's the priciest 2 kWh unit here.

Ideal for

Home backup you plan to expand, and high-draw appliances.

Skip it if

Buyers who just want 2 kWh cheaply.

Capacity8Output9Charging8Solar input9Portability2Battery life7Value6

Editor scores

How it rates

  • Capacity8
  • Output9
  • Charging8
  • Solar input9
  • Portability2
  • Battery life7
  • Value6

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

Specifications

Full spec sheet

Battery

Capacity2,048 Wh
Battery chemistryLiFePO4
Rated cycles—
Expandable to10,000 Wh

Output

AC output (continuous)3,000 W
Surge / peak6,000 W
AC outlets4
Fastest USB-C port140 W
30 A RV outlet—

Charging

Max AC charging input1,800 W
Full charge from the wall—
Charging speed (claimed)0–80% in 43 min (listing also quotes 64 min)
Max solar input1,000 W
UPS switchover10 ms

Size & build

Weight49 lb
Dimensions19.4 × 9.5 × 12 in
Noise (claimed)—

Other

App controlEcoFlow app
Warranty5 years

Other details

X-BoostRuns resistive appliances up to 3,800 W
ExpansionUp to 10 kWh with EcoFlow extra batteries
AC outlets4 × 20 A

How long it runs (estimates)

CPAP, no humidifier (40 W, 8 h a night)5.4 nights
CPAP + heated humidifier (90 W)2.4 nights
Wi-Fi router + modem (20 W)87 h
Full-size fridge (~1.3 kWh a day)33 h
Laptop (60 W)29 h
Phone charges (~15 Wh each)116 charges

Based on 2,048 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 Max Plus against your fridge, CPAP, router and anything else in the runtime calculator

Sources: Amazon listing (2,048 Wh, 3,000 W, 3,800 W X-Boost, <10 ms UPS, expandable to 10 kWh, 49 lb, 5-year warranty) + ecoflow.com spec sheet (6,000 W surge, 1,000 W solar, 1,800 W AC input, 4 × 20 A outlets, 140 W USB-C). A dash (—) means the value isn't published anywhere we could verify.

In-depth review

What it's like to own

The Max Plus is built to grow. It starts at 2,048 Wh, but EcoFlow's extra batteries take it up to 10 kWh, and 3,000 W of output (6,000 W surge) handles well pumps, microwaves and window ACs.

It doubles the plain Max's solar input to 1,000 W and switches to battery in under 10 ms. The listing quotes both 43 and 64 minutes to 80%, so expect about an hour.

Owners use it with an extra battery to back up TVs, routers and fans, for car camping with an EV, and for small RVs. With 97 ratings its track record is still short.

Pros

  • 3,000 W, 6,000 W surge
  • Expandable to 10 kWh
  • 1,000 W solar
  • 10 ms UPS

Cons

  • $1,149 for 2 kWh
  • 49 lb
  • Only 97 ratings
  • Conflicting charge-time claims
See it on Amazon

Owner reviews

What buyers say

4.6 (97)
  • 5★86%
  • 4★2%
  • 3★5%
  • 2★2%
  • 1★5%

4.6★ from 97 ratings (88% 4–5 stars). Owners praise build quality, fast charging and quiet operation for home backup, EV camping and RVs. The review base is still small.

5.0Sep 20, 2026

With an extra battery it backs up a 75-inch TV, router, fan and lights.

— Victor Hugo, Amazon.com

5.0Feb 15, 2026

Easy to use for camping with an electric truck.

— Jared W., Amazon.com

5.0Jul 1, 2026

Bought to power a small RV while camping; worth it.

— christy patterson, Amazon.com

5.0Sep 24, 2026

Test-ran an air cooler, big fan and purifier for 12 hours.

— Rick, 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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EcoFlow DELTA 3 Max

4.7 (609)

2 kWh with enough output for heavy kitchen appliances.

Capacity
2,048 Wh
Output
2,400 W
Weight
44.8 lb
Recharge
80% in 68 min
$879.00$1,199.00−27%Amazon price as of Sep 27, 2026
View on AmazonFull review
EcoFlow DELTA 3 Max Plus
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