EF ECOFLOW DELTA 2 Max Portable Power Station, 2048Wh

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Product guide

EF ECOFLOW DELTA 2 Max Portable Power Station, 2048Wh

The EF ECOFLOW DELTA 2 Max is a solar-powered portable power station listed for home backup, with a 2048Wh capacity and expandable storage claims. Its advertised 2400W output and 3400W X-Boost figure describe different operating claims, so buyers should confirm which applies to their appliances.

At a glance

Listed 2048 watt-hours of stored energy, energy capacity is not the same as continuous output.
Manufacturer describes 2400W output and up to 3400W with X-Boost, these are distinct claims.
Solar, wall-outlet AC and car charging are listed, with AC-plus-solar charging also claimed.
Additional batteries are claimed to expand capacity up to 6kWh.

Price

$1,028.99Save 26%

Reference price: ~~$1,399.00~~

Price checked: Nov 11, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

DIHOOL Solar Disconnect Switch, 40 Amp 2 Pole, DIN Rail Mount, Non Polarized, 12V 24V 48V 400V, AC/DC Circuit Breaker, RV Battery Isolator, PV Array MCB, Thermal Magnetic Trip

$13.99

TEMGO 48V (51.2V) 100Ah LiFePO4 Lithium Golf Cart Battery | 200A Smart BMS, Max 10.24kW Output, LCD Screen, 58.4V 18A Charger and App

$899.99

Pros and cons

Pros

Multiple listed charging routes can suit home backup as well as outdoor use.
The manufacturer describes an expansion path using up to two extra batteries.
Customer feedback reports quick charging, substantial appliance runtime and straightforward setup.

Technical specifications

14 specifications

Identity
Brand	EF ECOFLOW
Model	DELTA2 Max

Power and battery
Power configuration	Solar Powered
Charging options	Supports solar panel charging, AC wall outlet charging, and car charging

Dimensions and installation
Weight listed	23 kg
Dimensions	12.2"L x 9.7"W x 20"H

Charging and expansion claims
AC charging claim	an 80% charge in a speedy 1.1 hour
Combined AC and solar charging claim	In only 43 min get an 80% charge
Expandable capacity claim	up to 2 extra solar powered batteries
Maximum expanded capacity claim	up to 6kWh

Use and operation
Recommended use	Home Backup
Output claim	With up to 2400W
X-Boost claim	with up to 3400W
Noise claim and condition	only 30 dB

What to know before buying

Listing details to confirm

Listing details are inconsistent: the title identifies a 2048Wh, 2400W LiFePO4 unit, while detail fields also call the output 3400 watts and describe a 2400W generator, feature text specifies 2400W output with up to 3400W in X-Boost, and an unrelated engine/generator block lists 4 Stroke, 79 cubic centimeters, 4800 watts starting, 2400 watts running and 43 minutes runtime. Confirm the configuration and applicable output claims for the selected listing, the 43-minute charge claim is a separate combined AC-and-solar 80% claim, not an engine runtime.

What’s in the box

Included

AC charging cable (1)
EcoFlow DELTA 2 Max portable power station (1)

Who is it for?

A good fit for

Home-backup buyers seeking a rechargeable power station with solar, AC and car charging options.
Campers and RV users who want portable stored power and may use expansion batteries.

Less suited to

Buyers who need a verified output rating for a specific high-wattage appliance without checking the operating mode and listing configuration.
Buyers who require included solar panels, the listing says the panel is optional.

EF ECOFLOW DELTA 2 Max Portable Power Station, 2048Wh · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 1,369 ratings

5 stars88%88%
4 stars5%5%
3 stars0%0%
2 stars1%1%
1 star6%6%

Customer feedback reports fast charging, extended appliance runtime, useful backup power and ease of setup—practical strengths for users who want stored energy and several charging options. Feedback also describes mixed reliability, including reports of some units failing after a few months. These are customer perceptions, they do not verify the listing's charging, output or battery-life claims. The aggregate rating is 4.6 out of 5 from 1,369 global ratings, but ratings alone do not establish performance or explain failures.

Positive themes

Customers report quick charging, substantial appliance runtime and ease of use.

Mixed feedback

Customer feedback describes mixed reliability, with reports ranging from long-lasting units to failures after a few months.

Frequently asked questions

What capacity is listed for the DELTA 2 Max?

The title and listing identify it as 2048Wh, the details field expresses this as 2048 watt-hours.

What charging methods are listed?

The listing says it supports solar panel, AC wall outlet and car charging. It also claims 80% charging in 1.1 hour on AC, or 43 minutes with AC and up to 1000W solar input combined.

Does this package include a solar panel?

No panel is listed in the package contents, and the listing describes the solar panel as optional.

How much power can it provide?

The title says 2400W, while feature text distinguishes up to 2400W output from up to 3400W with X-Boost. Because other listing details conflict, verify the mode-specific rating for your intended appliance.