Backup Rank

EcoFlow

DELTA Pro

EcoFlow DELTA Pro, photo 1 of 1
photo source, checked

The EcoFlow DELTA Pro has 3,600 Wh of LiFePO4, 3,600 W output, 25,000 Wh of expansion and home panel support, priced at $1,799 as of November 8, 2026.

Battery capacity
3,600 Wh
AC output
3,600 W
Max with extra batteries
25,000 Wh
AC voltage
Not listed

Maker page at EcoFlow

Our verdict

Its price is $0.500 per Wh. The EcoFlow DELTA 3800 Gen4 is $2,199 at $0.584 per Wh. The Anker SOLIX S5000 is $2,499.99 at $0.498 per Wh. It has less capacity than the 3,763 Wh DELTA 3800 Gen4 but costs $400 less. The S5000 has 5,024 Wh and 240V output.

It ranks #4 of 18 expandable, #12 of 50 solar, #40 of 53 lightweight, #22 of 43 fast charging. It weighs 99 lb. Its warranty and UPS time are not stated. The 3,000 W wall charging needs 240V; 120V is 1,800 W. The price is a sale.

Buy it for a highly expandable home backup base. Skip it if you want a newer design or a stated warranty term.

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 capacity3,600 Whsource, checked
AC output3,600 Wsource, checked
Surge output7,200 Wsource, checked
Max with extra batteries25,000 Whsource, checked
Battery typeLiFePO4source, checked
Cycle life3,500 cyclessource, checked
AC voltageNot listed
Max solar input1,600 Wsource, checked
Wall charging3,000 Wsource, checked
UPS switchoverNot listed
AC outlets5source, checked
Home panel or transfer switchYessource, checked
Weight99 lbsource, checked
WarrantyNot listed

Prices

Similar models

EcoFlow US$1,799

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