Backup Rank

EcoFlow

DELTA 3 Ultra

EcoFlow DELTA 3 Ultra, photo 1 of 1
photo source, checked

The EcoFlow DELTA 3 Ultra holds 3,072 Wh of LiFePO4, with 3,600 W output, 7,200 W surge and a transfer switch option, at $1,299 as of November 8, 2026.

Battery capacity
3,072 Wh
AC output
3,600 W
Max with extra batteries
3,072 Wh
AC voltage
120V only

Maker page at EcoFlow

Our verdict

Its price is $0.423 per Wh. The Jackery HomePower 3000 is $1,499 at $0.488 per Wh. The Pecron F3000LFP is $899 at $0.293 per Wh. All three hold 3,072 Wh. The Ultra matches 3,600 W output and 7,200 W surge, and it is not expandable.

It ranks #5 of 17 home backup, #4 of 15 under $2,000, #19 of 50 solar, #18 of 53 lightweight, #5 of 39 UPS. The price is a sale. Wall charging and cycle life are not stated. A licensed electrician installs any transfer switch. The warranty is 3 years, with 2 more on registration.

Buy it for home backup with a transfer switch option. Skip it if you want expansion or the lowest price per Wh.

Where it ranks

How it scored in each list. A longer bar is better for you.

Specifications

Each value links to the page it came from.

Battery capacity3,072 Whsource, checked
AC output3,600 Wsource, checked
Surge output7,200 Wsource, checked
Max with extra batteries3,072 Whsource, checked
Battery typeLiFePO4source, checked
Cycle lifeNot listed
AC voltage120V onlysource, checked
Max solar input800 Wsource, checked
Wall chargingNot listed
UPS switchover10 mssource, checked
AC outletsNot listed
Home panel or transfer switchYessource, checked
Weight72.1 lbsource, checked
Warranty3 yearssource, checked

Prices

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EcoFlow US$1,299

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