EcoFlow DELTA 3 Max Plus: how long it runs

What it runs

• Average fridge24.7 h70.4 W
• Modem + router6.6 days11 W
• 4 LED bulbs2.1 days34 W
• CPAP, humidifier on3.3 days22 W
• Laptop34.8 h50 W
• Starlink Standard23.2 h75 W
• TV, 55 inch18.1 h96 W
• Electric blanket17.4 h100 W
• Microwave1.6 h1,100 W

Each device on its own: 2,048 Wh × 0.85 ÷ watts. Several at once: add the watts, or use the planner.

Every number, with sources

Runtime at steady loads

Load	Runtime
50 W	34.8 h
100 W	17.4 h
200 W	8.7 h
500 W	3.5 h
1,000 W	1.7 h
1,500 W	1.2 h

2,048 Wh × 0.85 ÷ load.

Devices, one at a time

Device	Draw	Runtime
Modem + router (NRDC)	11 W	6.6 days
4 LED bulbs (Philips)	34 W	2.1 days
CPAP, humidifier on (ResMed)	22 W	3.3 days
Laptop (Virginia Tech)	50 W	34.8 h
Starlink Standard (Starlink)	75 W	23.2 h
TV, 55 inch (ENERGY STAR)	96 W	18.1 h
Electric blanket (Penn State)	100 W	17.4 h
Microwave (Penn State)	1,100 W	1.6 h

Each on its own. Several at once: add the watts, or use the calculator.

Fridges

Fridge	Average	Runtime
Efficient 18 cu ft (ENERGY STAR)	42 W	41.4 h
Average US fridge (EIA)	70.4 W	24.7 h
Large 26 cu ft (ENERGY STAR)	80.8 W	21.5 h

From the specs

CPAP users: follow your doctor’s and the device maker’s advice on backup power.

Motors and solar

6,000 W surge, per EcoFlow. Some fridges need two to three times their running power to start (Anker), some compressors two to four times (BLUETTI); check yours.

Solar: up to 1,000 W, about 2.7 sun hours to full by our math.

Add-ons from EcoFlow

Extra battery

• 

  EcoFlow DELTA 3 Max Plus Smart Extra Battery

  4,096 Wh in total with one

  Adds 2,048 Wh · average fridge: 2.1 days

  $859

  Check price at EcoFlow for the EcoFlow DELTA 3 Max Plus Smart Extra BatteryPaid link

Battery numbers in a table

Battery	Adds	Total with one	Average fridge	Price	Store
EcoFlow DELTA 3 Max Plus Smart Extra Battery	2,048 Wh	4,096 Wh	2.1 days	$859	Check price for the EcoFlow DELTA 3 Max Plus Smart Extra BatteryPaid link

EcoFlow lists these for the DELTA 3 Max Plus. Fridge time: total Wh × 0.85 ÷ 70.4 W. Prices: EcoFlow’s US store, Oct 23.

Solar panels

• 

  EcoFlow NextGen 160W Portable Solar Panel

  17.1 h sun hours to full

  160 W · 12.3 lb

  $369

  Check price at EcoFlow for the EcoFlow NextGen 160W Portable Solar PanelPaid link
• 

  EcoFlow NextGen 220W Bifacial Portable Solar Panel

  12.4 h sun hours to full

  220 W · 15.4 lb

  $399

  Check price at EcoFlow for the EcoFlow NextGen 220W Bifacial Portable Solar PanelPaid link
• 

  EcoFlow 100W Flexible Solar Panel

  27.3 h sun hours to full

  100 W · 5.1 lb

  $199

  Check price at EcoFlow for the EcoFlow 100W Flexible Solar PanelPaid link
• 

  EcoFlow 175W Rigid Solar Panel

  15.6 h sun hours to full

  175 W · 20.5 lb

  $249

  Check price at EcoFlow for the EcoFlow 175W Rigid Solar PanelPaid link

Sun hours to full with one panel: 2,048 Wh ÷ (0.75 × the panel’s watts, up to the 1,000 W one input takes). On the DELTA 3 Max Plus, EcoFlow gives 1,000 W in total for its two inputs and no per-input figure.

Panel numbers in a table

Panel	Rated	Weight	Price	Sun hours	Store
EcoFlow NextGen 160W Portable Solar Panel	160 W	12.3 lb	$369	17.1 h	Check price for the EcoFlow NextGen 160W Portable Solar PanelPaid link
EcoFlow NextGen 220W Bifacial Portable Solar Panel	220 W	15.4 lb	$399	12.4 h	Check price for the EcoFlow NextGen 220W Bifacial Portable Solar PanelPaid link
EcoFlow 100W Flexible Solar Panel	100 W	5.1 lb	$199	27.3 h	Check price for the EcoFlow 100W Flexible Solar PanelPaid link
EcoFlow 175W Rigid Solar Panel	175 W	20.5 lb	$249	15.6 h	Check price for the EcoFlow 175W Rigid Solar PanelPaid link

Sun hours to full with one panel: 2,048 Wh ÷ (0.75 × the panel’s watts, up to the 1,000 W one input takes). On the DELTA 3 Max Plus, EcoFlow gives 1,000 W in total for its two inputs and no per-input figure.

EcoFlow’s portable panels come with a solar charging cable; for the rigid and flexible panels, check that you have one for this station. All panels side by side: solar panels for power stations.

Nearest in size

Quick answers