How long will the battery last?

The LFP battery is rated for 3,000 complete cycles before dropping to 80% capacity, about ten years of daily use.

Can it run a fridge or power tools?

Yes. The 2,400 W AC output runs most fridges and tools, and X-Boost lets some higher-draw appliances run at reduced power.

What does the smart extra battery add?

It stacks onto the station to raise total capacity, so you can extend runtime without buying a second full unit.

Is it good for a camper van?

It suits van and RV builds for its output and expandable capacity, but check the footprint and weight against your storage space.

How is it different from older NMC power stations?

The LFP battery lasts far more cycles and is safer at high temperatures, at the cost of more weight for the same capacity.

EcoFlow

EF ECOFLOW DELTA 2 MAX Power Station with Smart Extra Battery

Q: Where is the EF ECOFLOW DELTA 2 MAX Power Station with Smart Extra Battery cheapest?

At Amazon, for $1,028.99, 24% under what the other stores charge, as of our latest check.

Q: Where can I buy the EF ECOFLOW DELTA 2 MAX Power Station with Smart Extra Battery?

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

Best price now

$1,028.99at AmazonChecked 39 min ago

24% 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 of comparable EcoFlow LFP stations praise the long cycle life, steady AC output and the option to add battery capacity. Common complaints center on weight and bulk, and on fans that spin up under heavy loads.

What people mention

Battery lifePraisedOwners value the LFP chemistry and 3,000-cycle rating for years of daily use.
OutputPraisedThe 2,400 W AC output and X-Boost handle fridges, tools and kitchen gear.
WeightCriticisedOwners say it is heavy and awkward to carry any distance.
ExpandabilityPraisedThe smart extra battery lets users add capacity as needs grow.
Fan noiseMixedFans are quiet at low draw but audible under heavy loads.

About the EF ECOFLOW DELTA 2 MAX Power Station with Smart Extra Battery

The EcoFlow DELTA 2 Max is a portable power station with a 2048 Wh LFP (LiFePO4) battery. It rates 3000 cycles to 80% capacity, which works out to about 10 years of daily use. It has a one-piece body with reinforced ports, a rubber anti-slip base and a UL94-5VA fire-resistant casing. A battery management system regulates voltage, current and temperature.

It delivers 2400W of AC output through 6 AC outlets and can power up to 15 devices at once. X-Boost handles appliances up to 3400W. Capacity expands from 2 kWh to 6 kWh (6144 Wh) with up to two Smart Extra Batteries. It suits home backup, RVs, camper vans, trailers, outdoor use, DIY projects and off-grid power builds.

AC charging reaches 80% in 1.1 hours. Combined solar and AC charging reaches 80% in 43 minutes. MPPT solar charging runs at 99% efficiency, and the 1000W solar input can take multiple EcoFlow portable solar panels. The app lets you prioritize solar or AC charging, view input and output power and battery level, set working times and get low-battery reminders. Noise can be as low as 30 dB.

Capacity

2048 Wh

Expandable to

Up to 6144 Wh with two DELTA 2 Max or DELTA Max Smart Extra Batteries

AC output

6 outlets, 2400W total (surge 4800W)

X-Boost

Up to 3400W

USB-A

2 ports, 5V, 2.4A, 12W max per port; fast charge 5V 2.4A / 9V 2A / 12V 1.5A, 18W max

USB-C

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