GoSun Power 992 Runtime Calculator

Quick answer: the GoSun Power 992 stores 992 Wh and delivers up to 1,200 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: 2026-08-27. This is an estimate, not a guarantee.

GoSun Power 992 portable power station
Battery capacity992 Wh
AC output1,200 W
Surge output1,500 W
Battery chemistryLiFePO4
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-27
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GoSun Power 992: Key facts
Battery capacity992 Wh
Battery chemistryLiFePO4
AC output1,200 W
Surge output1,500 W
DC outputunknown
USB-C output140 W
Solar input200 W
Weight10.5 kg
ConfidenceEstimated
Lifecycle statusUnknown
Source regionGlobal/general sources
Last verified2026-08-27
Catalog notes (original English)

DC output stays unknown because the page counts DC ports without publishing a watt ceiling for them.

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 36m
Exceeds a tracked power limit — do not rely on these hours
EstimatedCalculator
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%17h 55m
Within the tracked power limits; compatibility still needs checking
EstimatedCalculator
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%1d 1h
Within the tracked power limits; compatibility still needs checking
EstimatedCalculator
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%2d 17h
Within the tracked power limits; compatibility still needs checking
EstimatedCalculator
LED TV100 W · 100% · AC inverter · Reserve: 10%7h 35m
Within the tracked power limits; compatibility still needs checking
EstimatedCalculator

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): 992 WhContinuous output rating (W): 1200 WSurge output rating (W): 1500 W
GoSun Power 992
Estimated runtime12h 39m7h 55m – 15h 42mEstimated runtime: 12h 39m, 7h 55m – 15h 42m
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 39mEstimated runtime: 12h 39m

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

Conservative7h 55m
Estimated12h 39m
Optimistic15h 42m

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
992 Wh
Usable energy
759 Wh
992 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 39m
759 Wh / 60 W = 12h 39m
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.

Source-Backed Next Steps

Planning notes

  • Capacity class: 992 Wh. Size the battery for your measured average load and required hours, including reserve.
  • Tracked output: 1,200 W. Compare both running demand and startup demand before using any runtime estimate.
  • Solar input limit: 200 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: 10.5 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
  • unknown: DC output

Sources