EcoFlow DELTA Pro 3 vs Anker SOLIX F3800

EcoFlow DELTA Pro 3 vs Anker SOLIX F3800: which one should you buy?

Quick answer

Buy the EcoFlow DELTA Pro 3 if you want backup for well pumps and big appliances. Buy the Anker SOLIX F3800 instead if you want 240 V backup for less than the Plus.

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

We research products independently. When you buy through links on this page, we may earn a commission at no extra cost to you. How we earn money

Buy

EcoFlow DELTA Pro 3

Best for Whole-home ready

Typically $2,999–$3,999

Check Price on Amazon Paid link

Buy

Anker SOLIX F3800

Best for Value 240 V

Typically $2,499–$3,299

Check Price on Amazon Paid link

Quick comparison

Feature	EcoFlow DELTA Pro 3	Anker SOLIX F3800
Verdict	Buy	Buy
Typical price	$2,999–$3,999	$2,499–$3,299
Best for	Whole-home ready	Value 240 V
Key feature	4 kWh expandable station with 240 V output	3.84 kWh station with 240 V
Capacity	4,096 Wh	3,840 Wh
Output	4,000 W (120/240 V)	6,000 W (120/240 V)
Expandable to	48 kWh	26.9 kWh
Battery	LiFePO4	LiFePO4
Where to buy	Check Price Paid link	Check Price Paid link

Main differences

Capacity

EcoFlow DELTA Pro 3: 4,096 Wh; Anker SOLIX F3800: 3,840 Wh.

Output

EcoFlow DELTA Pro 3: 4,000 W (120/240 V); Anker SOLIX F3800: 6,000 W (120/240 V).

Expandable to

EcoFlow DELTA Pro 3: 48 kWh; Anker SOLIX F3800: 26.9 kWh.

Battery

EcoFlow DELTA Pro 3: LiFePO4; Anker SOLIX F3800: LiFePO4.

Why buy it

EcoFlow DELTA Pro 3: 4 kWh expandable station with 240 V output; Anker SOLIX F3800: 3.84 kWh station with 240 V.

Made for

EcoFlow DELTA Pro 3: whole-home ready; Anker SOLIX F3800: value 240 V.

Usual price

EcoFlow DELTA Pro 3: $2,999–$3,999; Anker SOLIX F3800: $2,499–$3,299.

Which should you choose?

Choose the EcoFlow DELTA Pro 3 if you

you want backup for well pumps and big appliances
value 240 V output

Check Price Paid link

Choose the Anker SOLIX F3800 if you

you want 240 V backup for less than the Plus
value 240 V

Check Price Paid link

If neither feels right

Neither is the only answer. See every model we would buy (and the ones we would skip) in our list of the best home backup batteries.

Not sure about either? Consider these

Anker · Home backup batteries

Anker SOLIX F3800 Plus

Buy it if you want strong home backup with expansion.

Verdict: Buy
Best for: Home backup
Typical price: $2,999–$3,999

Pros

6,000 W output
240 V

Cons

Heavy

Check Price on Amazon Paid linkRead our review

Jackery · Home backup batteries

Jackery Explorer 5000 Plus

Buy it if you want a large, simple backup.

Verdict: Buy
Best for: Big single unit
Typical price: $3,999–$4,999

Pros

Huge capacity
7,200 W

Cons

Very heavy

Check Price on Amazon Paid linkRead our review

Frequently asked questions

EcoFlow DELTA Pro 3 or Anker SOLIX F3800: which should I buy?

Buy the EcoFlow DELTA Pro 3 if you want backup for well pumps and big appliances. Buy the Anker SOLIX F3800 instead if you want 240 V backup for less than the Plus.

Is the price difference worth it?

The EcoFlow DELTA Pro 3 usually costs $2,999–$3,999 and the Anker SOLIX F3800 $2,499–$3,299. Pay more only if the differences above matter to you.

Buyrskip Editorial Team

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

How we research products Editorial policy

EcoFlow DELTA Pro 3 or Anker SOLIX F3800: the full reasoning

EcoFlow DELTA Pro 3 or Anker SOLIX F3800? Both are strong home backup batteries, which is exactly why the choice is hard. Here is the short version first: buy the EcoFlow DELTA Pro 3 if you want backup for well pumps and big appliances, and buy the Anker SOLIX F3800 if you want 240 V backup for less than the Plus. The rest of this page explains why, with usual US prices.

Where they differ

The EcoFlow DELTA Pro 3 wins on 4 kWh expandable station with 240 V output. The Anker SOLIX F3800 answers with 3.84 kWh station with 240 V. Capacity: 4,096 Wh on the EcoFlow DELTA Pro 3, 3,840 Wh on the Anker SOLIX F3800. Output: 4,000 W (120/240 V) on the EcoFlow DELTA Pro 3, 6,000 W (120/240 V) on the Anker SOLIX F3800. Expandable to: 48 kWh on the EcoFlow DELTA Pro 3, 26.9 kWh on the Anker SOLIX F3800. Battery: LiFePO4 on the EcoFlow DELTA Pro 3, LiFePO4 on the Anker SOLIX F3800.

Reasons to buy the EcoFlow DELTA Pro 3

240 V output, Expandable to 48 kWh, 4,000 W. What to accept: heavy, expensive. Usual price: $2,999–$3,999. Our verdict: buy. Read the full EcoFlow DELTA Pro 3 review.

Reasons to buy the Anker SOLIX F3800

240 V, 6,000 W, Expandable. What to accept: heavy, fewer extras than Plus. Usual price: $2,499–$3,299. Our verdict: buy. Read the full Anker SOLIX F3800 review.

Neither one?

Our list of the best home backup batteries has every other model with its own call. Output: 3,000 W or more (and 240 V on some models) is needed for well pumps, sump pumps and central air.

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

Also consider the Jackery Explorer 5000 Plus ($3,999–$4,999): 5 kWh station with 7.2 kW output. Buy it if you want a large, simple backup.

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.