How long will the DELTA 2 Max last?

EcoFlow rates the LFP battery at 3000+ cycles to 80% of original capacity, about ten years of daily use. It carries a 5-year warranty.

Can I expand the capacity?

Yes. It accepts up to two DELTA 2 Max Smart Extra Batteries, reaching 6144Wh total.

How fast does it charge on solar?

With up to 1000W of solar input it charges in as fast as 2.3 hours, and AC plus solar can charge at the same time.

It delivers 2400W continuous with a 4800W surge across 6 AC outlets, and X-Boost raises output to about 3400W for many resistive appliances.

Is it good for home backup?

Yes, for essentials like a fridge, lights, router and medical devices. Whole-home circuits need a transfer switch and more capacity.

What comes in the box?

The power station, an AC charging cable, a car charging cable and a solar charging cable. Solar panels are sold separately.

Where is the EcoFlow DELTA 2 Max Solar Generator cheapest?

At Amazon, for $1,028.99, 38% under what the other stores charge, as of our latest check.

Where can I buy the EcoFlow DELTA 2 Max Solar Generator?

14 stores we checked sell it, including Amazon, The Home Depot, Best Buy, EcoFlow Official, Wellbots.

EcoFlow DELTA 2 Max Solar Generator

Best price now

$1,028.99at AmazonChecked 1 h ago

38% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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What reviewers say

Owners treat the DELTA 2 Max as a dependable home-backup and RV unit, praising the LFP longevity, fast solar charging and app control. Complaints center on weight and on fan noise at high output.

What people mention

Battery lifePraisedOwners value the LFP chemistry and 3000+ cycle rating for years of daily use.
Charging speedPraisedUsers report fast solar and dual AC-plus-solar charging, close to the claimed times.
WeightCriticisedOwners say it is heavy and awkward to carry alone.
Fan noiseMixedFans are quiet at low load but noticeable when running high-draw appliances.
App controlPraisedThe app's charge priority and live power readouts are seen as genuinely useful.

About the EcoFlow DELTA 2 Max Solar Generator

The EcoFlow DELTA 2 Max is a portable power station with a 2048Wh LFP (LiFePO4) battery. It can be expanded with up to two DELTA 2 Max Smart Extra Batteries, or a DELTA Max Smart Extra Battery, for a total capacity of 6144Wh. It can be used for home backup, RVing and outdoor use.

The battery is rated for 3000 cycles to 80+% capacity. It has six AC outlets with 2400W total output and a 4800W surge. X-Boost mode raises output to 3400W. It can power 15 devices at once.

It recharges from AC, solar or a car. X-Stream AC charging runs at 1800W. Solar input is up to 1000W with both ports in use, and 99% MPPT efficiency. The EcoFlow app, over Wi-Fi or Bluetooth, lets you prioritize solar or AC charging and view input and output power and battery levels.

Capacity

2048Wh, expandable to 6144Wh with two extra batteries

Battery

LFP (LiFePO4), 3000 cycles to 80+% capacity

AC output

6 outlets, 2400W total, 4800W surge; 3400W with X-Boost

USB-A output

2 ports, 5V, 2.4A, 12W max per port

USB-A fast charge

2 ports, 5V 2.4A / 9V 2A / 12V 1.5A, 18W max

USB-C output

2 ports, 5/9/12/15/20V, 5A, 100W max per port