What it runs

It powers all 16 common appliances below, each on its own. A modern full size refrigerator runs about 2.6 days on a full charge.

Each appliance on its own on the Goal Zero Yeti PRO 4000, at 85% efficiency
ApplianceWattsCan it power itOn a full charge
Phone charging20 WRuns it7.1 days
Laptop (while charging)65 WRuns it2.2 days
Wi-Fi router and modemestimate28 WRuns it5.1 days
LED bulb, 60 W equivalent (800 lumens)8.5 WRuns it16.6 days
TV, 55 inch LED (LCD)82 WRuns it41.4 h
CPAP machine (no humidifier)11 WRuns it12.9 days
Oxygen concentrator (home, stationary)290 WRuns it11.7 hCounts the running watts for every hour you enter.Starting watts not published; motors often need 2 to 3 times their running watts to start.
Box fan (20 inch)125 WRuns it27.2 hCounts the running watts for every hour you enter.Starting watts not published; motors often need 2 to 3 times their running watts to start.
Refrigerator (modern, full size)275 W1,000 W to startRuns it2.6 days
Chest freezer300 W750 W to startRuns it4.2 days
Sump pump (1/2 HP)925 W1,725 W to startRuns it3.7 hAssumes the motor runs the whole time; real use is often less.
Drip coffee maker900 WRuns it3.8 h of use
Microwave oven (1,000 W cooking power)1,530 WRuns it2.2 h of use
Electric kettle1,500 WRuns it2.3 h of use
Window air conditioner (5,000 BTU)525 W1,050 W to startRuns it6.5 hAssumes the motor runs the whole time; real use is often less.
Electric space heater (1,500 W)1,500 WRuns it2.3 h

Running time is usable watt hours divided by the appliance's average draw, with nothing else plugged in. Loads used for minutes a day show minutes of use. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

For medical equipment, confirm the power needs with the device maker and keep a backup plan. This page is not medical advice.

Will it run your appliance

Pick any of the appliance types in the data to see whether the Goal Zero Yeti PRO 4000 powers it and for how long.

Recharging

From the wall

Maximum AC charging input: 1,800 W.

From solar

It takes up to 3,000 W of solar. Worked at 4 peak sun hours, counting 75% of the panel rating to allow for heat, angle and controller losses:

  • 200 W of panels × 4 h of sun × 0.75 = 600 Wh a day. From empty to full: 3,994 ÷ (200 × 0.75) = 26.6 hours of sun.
  • 3,000 W of panels × 4 h of sun × 0.75 = 9,000 Wh a day. From empty to full: 3,994 ÷ (3,000 × 0.75) = 1.8 hours of sun.

Work out other panel sizes for the Goal Zero Yeti PRO 4000

From a car

Car charging input: not published.

Expansion and backup mode

It takes expansion batteries (Tank Pro 4000) up to 20,000 Wh in total: 17,000 Wh usable (20,000 × 0.85).

Backup (UPS) switchover time: not published.

Full specifications

Rated capacity
3,994 Wh
Battery chemistry
LiFePO4 (lithium iron phosphate)
Cycle life
4,000 cycles (end capacity not published)
Continuous AC output
3,600 W
Surge rating
7,200 W
AC voltage
120 V
TT-30 RV outlet
yes
USB-C
3 ports, up to 100 W
USB-A
3 ports
Wall charging input
up to 1,800 W
Solar input
up to 3,000 W
Expansion batteries
yes, up to 20,000 Wh in total (Tank Pro 4000)
Weight
115.7 lb (52.5 kg)
Size (box)
21.4 × 14.8 × 13.8 in543 × 377 × 351 mm, largest side first
Charges down to
32 °F (0 °C)
Runs down to
-4 °F (-20 °C)
App connection
Bluetooth, Wi-Fi
Warranty
5 years

Price

$3,999.95, the price shown on the maker's page in October 2026. That is $1.00 per Wh of rated capacity. Sale prices change often and are not stored; the maker's page shows today's price and stock.

Goal Zero's page for the Yeti PRO 4000 (opens in a new tab)

Enough Watts may earn a commission when you buy through links on this page. It never changes the math or the ranking.

Similar stations

The nearest capacities in the data, from any brand.

Stations closest in capacity to the Goal Zero Yeti PRO 4000
Power stationCapacityOutputSurgeWeightPrice
Anker SOLIX F38003,840 Wh6,000 W9,000 W132.3 lb (60 kg)$2,199.99$0.57 per Wh
Anker SOLIX F3800 Plus3,840 Wh6,000 W9,000 W136.7 lb (62 kg)$2,699.99$0.70 per Wh
BLUETTI Elite 4003,840 Wh2,600 W5,200 W86 lb (39 kg)$1,399$0.36 per Wh
EcoFlow DELTA Pro 34,096 Wh4,000 W8,000 W113.5 lb (51.5 kg)$3,699$0.90 per Wh

All 5 Goal Zero power stations · Compare all 54 power stations

Sources

Researched from these pages, then checked against them a second time. The check corrected at least one figure.

  1. Goal Zero YETI PRO 4000 Portable Power Station 3994Wh LiFePo4 Battery maker product page, checked

We read published specifications and do the math; we do not test products. The methodology states every formula on this page.