What is the main difference between EcoFlow DELTA models?

The size ladder changes stored energy, output, weight, charging, expansion, and price. Use the sourced matrix to identify the smallest model that still covers your load.

Which EcoFlow DELTA model has the most capacity?

Sort the lineup by rated watt-hours in the matrix. Capacity alone is not a complete recommendation because output and portability can change independently.

Which EcoFlow DELTA model is easiest to carry?

Compare sourced weight alongside capacity. BatteryRank only calls out a lightest model when a weight reading exists for the candidates.

Are newer DELTA models always better?

No. Generation names do not determine the score. BatteryRank compares the sourced data, and current price can make an older model a different buying decision.

Should I size up for an outage?

Size for the devices and duration you actually need, then leave margin for conversion losses and startup loads.

How is the BatteryRank score calculated?

The composite is price-independent and computed from published inputs with missing-data rules.

Where are current prices compared?

The matrix timestamps the latest tracked price. Dedicated price-history pages own deal and historical-price intent when enough history is available.

Can I compare two exact models?

Yes. Exact model-vs-model pages own head-to-head decisions and keep those queries separate from this family overview.

← EcoFlow lineup

Family comparison

EcoFlow DELTA models compared

A size-by-size comparison of current EcoFlow DELTA, Max, Ultra, and Pro power stations.

Lineup at a glance

This page owns family and generation-chart intent. It goes deeper than the brand hub but sends exact two-model decisions to head-to-head pages and deal queries to price history.

EcoFlow DELTA models compared sourced comparison matrix
Model	Score	Rated capacity	AC output	Weight	Solar input	Tracked price
EcoFlow DELTA 2	57 / 100	1024 Wh. Show source claimed sourceecoflow-service-us-prod.oss-us-west-1.aliyuncs.com ↗2026-07-10	1800 W. Show source claimed sourceecoflow-service-us-prod.oss-us-west-1.aliyuncs.com ↗2026-07-10	12 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-10	500 W. Show source claimed sourceecoflow-service-us-prod.oss-us-west-1.aliyuncs.com ↗2026-07-10	$429Fair price Check price on Amazon as of 2026-07-16
EcoFlow DELTA 3	69 / 100	1024 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	1800 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	12.5 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	500 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	$549High price as of 2026-07-17
EcoFlow DELTA 3 Plus	72 / 100	1024 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	1800 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	12.5 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	1000 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	$649Fair price Check price on Amazon as of 2026-07-17Price history →
EcoFlow DELTA 2 Max	66 / 100	2048 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	2400 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	23 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	1000 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	$949Fair price Check price on Amazon as of 2026-07-17Price history →
EcoFlow DELTA 3 Max	66 / 100	2048 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	2400 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	20.3 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	500 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	$1,199High price Check price on Amazon as of 2026-07-17
EcoFlow DELTA 3 Ultra	59 / 100	3072 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	3600 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	32.7 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	800 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	$1,299Good price Check price on Amazon as of 2026-07-17Price history →
EcoFlow DELTA Pro 3	75 / 100	4096 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	4000 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	51.5 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	2600 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	$2,399Fair price Check price on Amazon as of 2026-07-17Price history →
EcoFlow DELTA Pro Ultra	58 / 100	6144 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	7200 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	82.4 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	5600 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	$3,999Great price Check price on Amazon as of 2026-07-17Price history →
EcoFlow DELTA Pro Ultra X	80 / 100	12288 Wh. Show source claimed sourceus.ecoflow.com ↗2026-07-04	12000 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	135.5 kg. Show source claimed sourceus.ecoflow.com ↗2026-07-04	10000 W. Show source claimed sourceus.ecoflow.com ↗2026-07-04	N/A

Manufacturer-claimed unless marked verified. Select a dotted reading to inspect its source and date. Score methodology is published separately.

What changes the decision

These callouts use only the complete, sourced readings available for every candidate. Open the full model page before buying for all specifications and source notes.

Start with these measurable differences

Highest data score

80 / 100

EcoFlow DELTA Pro Ultra X →

Source: https://batteryrank.com/methodology · 2026-07-16

Lightest sourced weight

12 kg

EcoFlow DELTA 2 →

Source: https://us.ecoflow.com/products/delta-2-portable-power-station · 2026-07-10

Highest sourced AC output

12000 W

EcoFlow DELTA Pro Ultra X →

Source: https://us.ecoflow.com/products/delta-pro-ultra-x · 2026-07-04

Current model and price pages

Use the model dossier for complete specifications. When enough history exists, the card links to a dedicated price-history page rather than forcing price intent onto this comparison page.

EcoFlow

DELTA 2

Fair price

BatteryRank score57 / 100 · Balanced

$429as of 2026-07-16

Usable AC energy: 895 Whverified. Show source
verified source~890-900Wh usable AC (~86-90% conversion) vs 1024Wh rated (Portable Power Lab, 6-month test)2026-07-04
Continuous AC output: 1800 W. Show source
claimed sourceecoflow-service-us-prod.oss-us-west-1.aliyuncs.com ↗

At tracked typical priceHistory unavailable

Price · 12 mo

Not enough history for chart

EcoFlow

DELTA 3

High price

BatteryRank score69 / 100 · Balanced

$549as of 2026-07-17

Usable AC energy: 870 Whverified. Show source
verified source~870Wh effective at ~85% (Backup Power Hub, calculated) vs 1024 rated2026-07-04
Continuous AC output: 1800 W. Show source
claimed sourceus.ecoflow.com ↗

3% above tracked typical priceHistory unavailable

Price · 12 mo

EcoFlow

DELTA 3 Plus

Fair price

BatteryRank score72 / 100 · Excellent

$649as of 2026-07-17

Usable AC energy (est.): 870 Whest.. Show source
estimated sourceus.ecoflow.com ↗2026-07-04
Continuous AC output: 1800 W. Show source
claimed sourceus.ecoflow.com ↗

7% below tracked typical priceHistory →

Price · 12 mo

EcoFlow

DELTA 2 Max

Fair price

BatteryRank score66 / 100 · Balanced

$949as of 2026-07-17

Usable AC energy (est.): 1741 Whest.. Show source
estimated sourceecoflow.com ↗2026-07-04
Continuous AC output: 2400 W. Show source
claimed sourceus.ecoflow.com ↗

At tracked typical priceHistory →

Price · 12 mo

EcoFlow

DELTA 3 Max

High price

BatteryRank score66 / 100 · Balanced

$1,199as of 2026-07-17

Usable AC energy (est.): 1741 Whest.. Show source
estimated sourceus.ecoflow.com ↗2026-07-04
Continuous AC output: 2400 W. Show source
claimed sourceus.ecoflow.com ↗

At tracked typical priceHistory unavailable

Price · 12 mo

EcoFlow

DELTA 3 Ultra

Good price

BatteryRank score59 / 100 · Balanced

$1,299as of 2026-07-17

Usable AC energy (est.): 2611 Whest.. Show source
estimated sourceus.ecoflow.com ↗2026-07-04
Continuous AC output: 3600 W. Show source
claimed sourceus.ecoflow.com ↗

7% below tracked typical priceHistory →

Price · 12 mo

EcoFlow

DELTA Pro 3

Fair price

BatteryRank score75 / 100 · Excellent

$2,399as of 2026-07-17

Usable AC energy: 3790 Whverified. Show source
verified source3790Wh usable at >93% efficiency (OutdoorGearLab) vs 4096 rated2026-07-04
Continuous AC output: 4000 W. Show source
claimed sourceus.ecoflow.com ↗

4% below tracked typical priceHistory →

Price · 12 mo

EcoFlow

DELTA Pro Ultra

Great price

BatteryRank score58 / 100 · Balanced

$3,999as of 2026-07-17

Usable AC energy (est.): 5222 Whest.. Show source
estimated sourceus.ecoflow.com ↗2026-07-04
Continuous AC output: 7200 W. Show source
claimed sourceus.ecoflow.com ↗

6% below tracked typical priceHistory →

Price · 12 mo

EcoFlow

DELTA Pro Ultra X

BatteryRank score80 / 100 · Excellent

Current price not available

Usable AC energy (est.): 10445 Whest.. Show source
estimated sourceus.ecoflow.com ↗2026-07-04
Continuous AC output: 12000 W. Show source
claimed sourceus.ecoflow.com ↗

Typical price not availableHistory unavailable

Price · 12 mo

Not enough history for chart

Frequently asked

What is the main difference between EcoFlow DELTA models?: The size ladder changes stored energy, output, weight, charging, expansion, and price. Use the sourced matrix to identify the smallest model that still covers your load.
Which EcoFlow DELTA model has the most capacity?: Sort the lineup by rated watt-hours in the matrix. Capacity alone is not a complete recommendation because output and portability can change independently.
Which EcoFlow DELTA model is easiest to carry?: Compare sourced weight alongside capacity. BatteryRank only calls out a lightest model when a weight reading exists for the candidates.
Are newer DELTA models always better?: No. Generation names do not determine the score. BatteryRank compares the sourced data, and current price can make an older model a different buying decision.
Should I size up for an outage?: Size for the devices and duration you actually need, then leave margin for conversion losses and startup loads. Calculate your size →
How is the BatteryRank score calculated?: The composite is price-independent and computed from published inputs with missing-data rules. See the formula →
Where are current prices compared?: The matrix timestamps the latest tracked price. Dedicated price-history pages own deal and historical-price intent when enough history is available.
Can I compare two exact models?: Yes. Exact model-vs-model pages own head-to-head decisions and keep those queries separate from this family overview. Open model comparison →

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