Goal Zero Yeti 1500X: Runtime & Specs

By Hicham M. · Specs from Goal Zero's published documents, as of September 2026 · How we calculate

The Goal Zero Yeti 1500X is a 1,516 Wh NMC lithium-ion power station with 2,000 W of continuous AC output and a 3,500 W surge rating. It runs a typical full-size fridge for about 22 hours. It has been replaced or discontinued, but many are still in use.

Capacity1,516 WhNMC lithium-ion

Output2,000 W3,500 W surge

Solar input600 W14–50 V

Weight45.6 lbexpandable

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Simulated runtimes (not measured)

Nobody tested this unit for this page. These figures come from a computer simulation of the Yeti 1500X, and they are estimates. The plain runtime table below divides energy by average draw at 85% efficiency. The simulation also charges the battery for the power the inverter burns just by being switched on, which is why small loads come out shorter. Where we have measured a unit, the measurement is shown separately and labeled as measured.

Simulated runtimes for the Goal Zero Yeti 1500X
Device	Spec-sheet math	Simulated, typical	Likely range	Simulated at 0 °C
Wi-Fi router + modem	3.6 days	40 hours	32 hours to 2 days	32 hours
CPAP (no humidifier)	43 hours	27 hours	24 hours to 32 hours	22 hours
Starlink Standard	14 hours	12 hours	12 hours to 13 hours	10 hours
Refrigerator (full-size, ENERGY STAR)	22 hours	17 hours	16 hours to 19 hours	14 hours

Nonstop runtime from full to battery cutoff. Likely range = middle 80% of 200 simulated runs with the uncertain inputs varied. The inverter idle draw is assumed, not published: we assumed about 20 W for this model, varied from 12 to 30 W. If the real figure is lower, real runtimes land closer to the spec-sheet column.

How this was simulated

The battery is stepped down every 2 minutes until it reaches cutoff, for 200 runs per device. Results are seeded, so the page shows the same numbers on every build.
Battery draw = load + inverter idle draw + 4–8% of the load + a loss that rises with load squared (4% at full output).
Usable capacity = 92–98% of rated Wh, for protection cutoff and aging.
At 0 °C, 75–88% of that capacity is assumed available.
Fridges cycle on and off every 30–50 minutes at the share of the time set by their average draw. The inverter idle draw continues while the compressor is off.
Devices that exceed this model's output or surge rating are left out. Loads are US 120 V devices.

These ranges are assumptions about a typical unit. They are not manufacturer figures for the Goal Zero Yeti 1500X. How we calculate · How we use AI

How long will the Yeti 1500X run your appliances?

Nonstop runtime for one device at a time, using typical US wattages and 85% inverter efficiency. Devices marked ✕ can't run on this model.

Estimated runtime by appliance for the Goal Zero Yeti 1500X
Device	Avg draw	Runtime
LED light bulb	9 W	6 days
Phone charging	10 W	5.7 days
Wi-Fi router + modem	15 W	3.6 days
Laptop	50 W	26 hours
CPAP (no humidifier)	30 W	43 hours
CPAP with heated humidifier	60 W	21 hours
Starlink Standard	90 W	14 hours
TV	100 W	13 hours
Mini fridge	29 W	44 hours
Refrigerator	58 W	22 hours
Chest freezer	29 W	44 hours
Sump pump (1/3 HP)	160 W	8.1 hours
Sump pump (1/2 HP)	210 W	6.1 hours
Window AC	225 W	5.7 hours
Drip coffee maker	1,000 W	1.3 hours
Microwave	1,500 W	52 min
Space heater	750 W	1.7 hours
Well pump	33 W	Needs 240 V

Fridges, freezers, pumps and AC units cycle on and off, so we use their average draw. Want a mix of devices on a schedule? Use the runtime calculator.

What the Yeti 1500X can't power

Well pump (1/2 HP submersible): needs 240 V

Solar charging time

Hours of good sun to charge from empty, assuming panels deliver 75% of their rating.

Panels	Power in	Hours of sun
100 W of panels	75 W	20 hours
200 W of panels	150 W	10 hours
400 W of panels	300 W	5.1 hours
600 W of panels	450 W	3.4 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity	1,516 Wh
Amp-hours at 12 V (converted) How we convert	126 Ah (118 Ah at 12.8 V)
Battery chemistry LFP vs NMC	Lithium-ion (NMC)
Continuous AC output	2,000 W
Surge (peak) output	3,500 W
Boost mode	None listed
AC voltage	120V
AC outlets	2
USB-C ports	2 (up to 60 W)
USB-A ports	2
12 V car outlet	Yes
Max solar input	600 W
Solar voltage range	14–50 V
Solar max current	50 A
Max AC charging power	600 W
AC charging time (maker claim)	14 hr w/ incl. 120W supply; 3 hr w/ optional 600W
Expandable	Yes
UPS / EPS switchover What this means	Not listed
Cycle life What this means	500 cycles (to 80%)
Weight	45.6 lb
Warranty	2 years

Notes: 500 cycles to 80%. Solar max via HPP (Anderson). AC charging needs external supply. Yeti Link page lists 1500X for lead-acid Yeti Tank expansion (no cap); spec says Chainable: No.

Specs from Goal Zero's published documents, as of September 2026. Found an error? Tell us.

Sources

Similar power stations

Questions

How long will the Goal Zero Yeti 1500X run a refrigerator?

About 22 hours for a typical ENERGY STAR full-size fridge averaging 58 W, assuming 85% inverter efficiency. Older or larger fridges use more. Try your own numbers.

Can the Goal Zero Yeti 1500X run a microwave?

Yes. A typical 1,000 W microwave pulls about 1,500 W from the outlet, within its 2,000 W continuous output. A full battery gives about 52 min of cooking.

How many amp-hours is the Goal Zero Yeti 1500X?

The Goal Zero Yeti 1500X works out to about 126 Ah at 12 V, or 118 Ah at 12.8 V, the nominal voltage of a 12 V LiFePO4 battery. Both are our conversion of Goal Zero's 1,516 Wh rating: amp-hours = watt-hours ÷ volts. The battery inside may run at a different voltage, so an amp-hour figure in a manual or on a product listing can look very different for the same energy. For scale, a 12 V 100 Ah LiFePO4 battery holds 1,280 Wh, so this model holds about as much as 1.2 of them. How we convert amp-hours.

How long does the Goal Zero Yeti 1500X take to charge?

Goal Zero's published charging claim: “14 hr w/ incl. 120W supply; 3 hr w/ optional 600W”. Max AC charging power is 600 W. With solar, it accepts up to 600 W. With 600 W of panels that's roughly 3.4 hours of good sun from empty.

Is the Goal Zero Yeti 1500X expandable?

Yes, with Goal Zero's compatible extra batteries.