EcoFlow DELTA Max

Name: EcoFlow DELTA Max
Brand: EcoFlow
Author: JouleSpecs

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Data from official source

Sheet curated by JouleSpecs — We check every spec sheet against the manufacturer's own documentation: each value carries its source and the date we read it. Published Oct. 17, 2026 · Last updated Oct. 23, 2026

EcoFlow DELTA Max is a portable power station for keeping home devices running during a blackout, such as the fridge and lights. Its 2 kWh capacity can be expanded up to 6 kWh with Smart Extra Batteries. It recharges from a wall outlet, solar panels, a car, or the Smart Generator, which starts by itself when the charge runs low and stops once the battery is full. With the EcoFlow app you can control and monitor your energy use, including remotely.

01 · Verified data

Technical specifications

Cell chemistry NMC (nickel manganese cobalt)

Continuous output 2400 W

Parameter	Value	Source
Weight	22.0 kg (48.5 lb)	manufacturer website
Power supply	2000 W	manufacturer website
Nominal capacity	2.016 kWh	Compiled by editorial team
Cell chemistry	NMC (nickel manganese cobalt)	Compiled by editorial team
Expandable	Yes	Compiled by editorial team
Maximum expanded capacity	6 kWh	Compiled by editorial team
Continuous output	2400 W	Compiled by editorial team
Peak output	4600 W	Compiled by editorial team
AC outlets	4	Compiled by editorial team
Fastest USB-C	100 W	Compiled by editorial team
USB-A ports	2	Compiled by editorial team
USB-C ports	2	Compiled by editorial team
Maximum charge power	2 kW	Compiled by editorial team
Maximum solar input	800 W	Compiled by editorial team
Rated cycles	800 cicli	Compiled by editorial team
Capacity at end of cycle life	80 %	Compiled by editorial team
Warranty	2 anni	Compiled by editorial team
Mounting	Portable	Compiled by editorial team
Maximum temperature	45 °C	Compiled by editorial team
Declared standards	CE	Compiled by editorial team

02 · The numbers

What it really costs

Battery life cycles 730 cycles warranty years

the manufacturer does not state the guaranteed total energy throughput, which for heavy users is often the limit that runs out first

How we worked it out

stated cycles: 800
warranty years: 730

Energy density 91.600 Wh/kg

on nominal capacity: the manufacturer does not state the usable figure, so the true number is lower

How we worked it out

nominal capacity: 2.016
weight: 22

Power-to-capacity ratio 1.190 C

on nominal capacity: the manufacturer does not state the usable figure, so the true number is lower

How we worked it out

continuous power: 2400
nominal capacity: 2.016

These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.

03 · Summary