EcoFlow DELTA Pro review: buy or skip?

Consider8.1/10 research score

Quick answer

Consider it, if you find it well below the Pro 3. Why: original DELTA Pro, often discounted. The catch: older.

By Buyrskip Editorial Team Updated November 2, 2026 1 min read

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Our verdict on the EcoFlow DELTA Pro

Buy it if: you find it well below the Pro 3.
Skip it if: you need 240 V in one unit.

Best for: Discounted Pro
Key feature: Original DELTA Pro, often discounted
Typical price: $1,999–$2,799

Check Price on Amazon Paid link

Key specifications

Capacity	3,600 Wh
Output	3,600 W
Expandable to	25 kWh
Battery	LiFePO4

Who should buy it, and who should skip it

A good fit if you

you find it well below the Pro 3
value 3.6 kWh
can spend around $1,999–$2,799

Skip it if you

you need 240 V in one unit
mind this: older
mind this: 120 V only per unit

Pros and cons

Pros

3.6 kWh
Expandable
3,600 W
Wheels

Cons

Older
120 V only per unit

The verdict in one breath

The EcoFlow DELTA Pro is a good home backup battery for the right buyer, not an automatic pick. Its strength: original DELTA Pro, often discounted. Check the skip-if line before you order.

Reasons to buy

3.6 kWh
Expandable
3,600 W
Wheels

Reasons to skip

Older
120 V only per unit

The specs that matter

Capacity: 3,600 Wh
Output: 3,600 W
Expandable to: 25 kWh
Battery: LiFePO4

Worth knowing

Two units can be paired for 240 V.

Buy it or skip it?

Consider it if you find it well below the Pro 3. Skip it if you need 240 V in one unit; the Anker SOLIX F3800 is the better buy then. Everything else is in our list of the best home backup batteries.

Alternatives worth considering

Anker · Home backup batteries

Anker SOLIX F3800

Buy it if you want 240 V backup for less than the Plus.

Verdict: Buy
Best for: Value 240 V
Typical price: $2,499–$3,299

Pros

240 V
6,000 W

Cons

Heavy

Check Price on Amazon Paid linkRead our review

EcoFlow · Home backup batteries

EcoFlow DELTA Pro 3

Buy it if you want backup for well pumps and big appliances.

Verdict: Buy
Best for: Whole-home ready
Typical price: $2,999–$3,999

Pros

240 V output
Expandable to 48 kWh

Cons

Heavy

Check Price on Amazon Paid linkRead our review

Frequently asked questions

Should I buy the EcoFlow DELTA Pro?

Consider it, if you find it well below the Pro 3. Why: original DELTA Pro, often discounted. The catch: older.

When should I skip it?

Skip it if you need 240 V in one unit. The Anker SOLIX F3800 is the better buy then.

What does the EcoFlow DELTA Pro cost?

Usually $1,999–$2,799 on Amazon.com. It tends to dip during Prime Day and Black Friday.

Buyrskip Editorial Team

Part of the Buyrskip research team. We compare specifications, documentation and real-world trade-offs so you can decide faster.

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EcoFlow DELTA Pro: the full buy-or-skip review

Is the EcoFlow DELTA Pro worth buying? Short answer: consider it, if you find it well below the Pro 3. This review explains what this EcoFlow model gets right, where it falls short, what it usually costs in the US and which home backup battery to buy instead if it is not the right fit for you.

What the EcoFlow DELTA Pro does well

The headline: original DELTA Pro, often discounted. Key specs: Capacity: 3,600 Wh; Output: 3,600 W; Expandable to: 25 kWh; Battery: LiFePO4. In our list it is the pick for: discounted Pro. It usually sells for $1,999–$2,799.

Two units can be paired for 240 V.

The trade-offs

Good: 3.6 kWh, expandable, 3,600 W, wheels. Not so good: older, 120 V only per unit. Read the skip-if line before you order: skip it if you need 240 V in one unit.

What to buy instead

Instead, consider the Anker SOLIX F3800 ($2,499–$3,299): 3.84 kWh station with 240 V. Better if you want 240 V backup for less than the Plus.

Instead, consider the EcoFlow DELTA Pro 3 ($2,999–$3,999): 4 kWh expandable station with 240 V output. Better if you want backup for well pumps and big appliances.

Instead, consider the Anker SOLIX F3800 Plus ($2,999–$3,999): 3.84 kWh station with 6 kW output and 240 V. Better if you want strong home backup with expansion.

Before you buy

Output: 3,000 W or more (and 240 V on some models) is needed for well pumps, sump pumps and central air. Expansion: extra battery packs let you grow from 3–4 kWh to 10+ kWh as needs change. Connection: a transfer switch or smart panel, installed by an electrician, lets the battery power home circuits safely.

US buyer tip

Battery storage may qualify for the federal residential clean energy tax credit when installed as part of a home system; check current rules with a tax professional before you buy.

Prices on Amazon.com move in a pattern. The deepest cuts land on Prime Day in July, Prime Big Deal Days in October and the Black Friday to Cyber Monday week, with smaller drops around Presidents Day, Memorial Day, the Fourth of July and back-to-school. Judge a deal against the usual price we show, never against the crossed-out list price.

Order from Amazon itself or the brand's official storefront so the US manufacturer warranty applies, keep your order confirmation and register the product with the brand. Most items can be returned within 30 days, and holiday purchases often get an extended return window into January.