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EcoFlow Delta 3 Ultra + 440W Solar Panel, product photo

EcoFlow · solar generator kit

EcoFlow Delta 3 Ultra + 440W Solar Panel

Home backup class (3,000 Wh and up). #17 of 141 solar generator kits on Benchwatt by popularity on Amazon US.

Capacity

3,072 Wh

Output

3,600 W

Weight

72.1 lb

Wh per lb

43

Price and availability are on Amazon; we don't show or track prices.

ECOFLOWHOME BACKUP3,072Wh3,600 WOUT43 Wh/lbLiFePO4+ 440 W panel

Published specs

BrandEcoFlow
ModelDelta 3 Ultra
Battery capacity3,072 Wh
Rated AC output (continuous)3,600 W
Surge / peak output7,200 W
Battery chemistryLiFePO4
Weight72.1 lb
Bundled solar panel440 W
UPS / switchover (per the listing)Yes
Amazon ASINB0FR8LQV82
Specs checkedNovember 11, 2026

From the maker's listing. Specs not stated there are left out rather than guessed.

Our math

43 Wh per pound (3,072 Wh ÷ 72.1 lb). That is #37 of 123 solar generator kits on Benchwatt with a listed weight. Higher means more stored energy for each pound you carry.

At its full rated 3,600 W, a full charge lasts about 44 min.

Runtime estimates

Hours = 3,072 Wh × 0.85 ÷ device watts. Typical draws; check your own device's label.

Device Draw Runtime
Phone charging10 W261 h
Laptop60 W44 h
CPAP (no humidifier)40 W65 h
Mini fridge (average draw)60 W44 h
Full-size fridge (700 kWh/yr label)80 W33 h
TV100 W26 h
Space heater1,500 W1.7 h

Estimates, not measurements. Fridges cycle on and off, so their average draw is well under their rated watts; heaters and kettles run near full power.

Similar capacity

Other solar generator kits within ±35% of 3,072 Wh, most popular first.

EcoFlow Delta 3 Ultra + 440W Solar Panel

3,072 Wh / 3,600 W · LiFePO4. See the current price and seller on Amazon.

Check price on Amazon