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Goal Zero Yeti 1000X Runtime Calculator

Quick answer: the Goal Zero Yeti 1000X stores 997 Wh and delivers up to 1,500 W of continuous AC power. Under this site's planning assumptions (85% inverter efficiency, 10% reserve), a steady 100 W AC load runs for roughly 7.6 hours. Last source check: 2026-08-20. This is an estimate, not a guarantee.

Goal Zero Yeti 1000X portable power station
Battery capacity997 Wh
AC output1,500 W
Surge output3,500 W
Battery chemistryLi-ion NMC
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-20
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Goal Zero Yeti 1000X: Key facts
Battery capacity997 Wh
Battery chemistryLi-ion NMC
AC output1,500 W
Surge output3,500 W
DC output180 W
USB-C output60 W
Solar input600 W
Weight14.4 kg
ConfidenceVerified
Lifecycle statusUnknown
Source regionGlobal/general sources
Last verified2026-08-20
Catalog notes (original English)

US-market specification record; regional SKUs may differ.

Runtime estimate

Formula starting points use each scenario’s default watts, duty cycle and output path, with 10% reserve or 15% for CPAP. Linked detail pages use the same inputs. Hours apply only if the device can run and start; they are not measured runtimes.

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Runtime estimate
Device scenarioPlanning defaultEstimated runtimeDevice scenario: ConfidenceModels
Full-size refrigerator500 W · 33% · AC inverter · Reserve: 10%4h 37m
Within the tracked power limits; compatibility still needs checking		EstimatedOpen estimate
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%18h 0m
Within the tracked power limits; compatibility still needs checking		EstimatedOpen estimate
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%1d 1h
Exceeds a tracked power limit — do not rely on these hours		EstimatedOpen estimate
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%2d 17h
Within the tracked power limits; compatibility still needs checking		EstimatedOpen estimate
LED TV100 W · 100% · AC inverter · Reserve: 10%7h 38m
Within the tracked power limits; compatibility still needs checking		EstimatedOpen estimate
Adjust these assumptions in the runtime calculator

Runtime calculator

Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.

Loading calculatorPreparing calculator
Power station model
Battery capacity (Wh): 997 WhContinuous output rating (W): 1500 WSurge output rating (W): 3500 W
Goal Zero Yeti 1000X
Estimated runtime12h 43m7h 57m – 15h 47mEstimated runtime: 12h 43m, 7h 57m – 15h 47m
Output path

Estimated runtime

Within the tracked power limits; compatibility still needs checking

This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.

12h 43mEstimated runtime: 12h 43m

This setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.

Conservative7h 57m
Estimated12h 43m
Optimistic15h 47m

These are calculated sensitivity cases, not a statistical confidence interval. Conservative uses lower efficiency and battery health, more reserve/temperature loss and higher load; optimistic changes these assumptions in the opposite direction.

  • This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
  • Within the tracked power limits; compatibility still needs checking

Show your work

Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.

Rated battery
997 Wh
Usable energy
763 Wh
997 Wh x 85% x 90% x 100% x 100%
Running watts
60 W
Average load
60 W
Max surge
n/a
Fixed station overhead
Unknown (not included)
60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime
12h 43m
763 Wh / 60 W = 12h 43m
Output path
AC inverter
Efficiency (%)
85
Reserve kept unused (%)
10
Battery health (%)
100
Cold weather loss (%)
0

This link contains the numeric values you entered, but not custom load names.

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WattRunTime.com

WattRunTime estimate

Estimated runtime

12h 43mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Usable energy763 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative7h 57m
Estimated12h 43m
Optimistic15h 47m

Show your work

Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.

Usable energy763 Wh997 Wh x 85% x 90% x 100% x 100%
Fixed station overheadUnknown (not included)60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime12h 43m763 Wh / 60 W = 12h 43m

Assumptions

  • 997 Wh nominal battery capacity
  • AC inverter output path
  • 85% conversion efficiency
  • 10% reserve kept unused
  • 60 W average load from 1 load
  • 100% battery health
  • 0% temperature loss
  • Fixed station overhead unknown; not included

Warnings

  • This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
  • Within the tracked power limits; compatibility still needs checking

Planning notes

  • Capacity class: 997 Wh. Size the battery for your measured average load and required hours, including reserve.
  • Tracked output: 1,500 W. Compare both running demand and startup demand before using any runtime estimate.
  • Solar input limit: 600 W. Actual refill depends on panel voltage/current compatibility, sunlight, angle and charging losses.

Known data gaps

  • Unverified or missing specifications remain visible. The confidence label describes the station record, not a tested runtime or approval for emergency use.
  • Weight: 14.4 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
  • unknown: —

Models: Goal Zero

Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.

Sources