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Growatt INFINITY 1500 Runtime Calculator

Quick answer: the Growatt INFINITY 1500 stores 1,512 Wh and delivers up to 1,800 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 11.6 hours. Last source check: 2026-10-25. This is an estimate, not a guarantee.

Growatt INFINITY 1500 portable power station
Battery capacity1,512 Wh
AC output1,800 W
Surge outputunknown
Battery chemistryLithium-ion
ConfidenceEstimated
Source regionUS source
checked2026-10-25
Growatt INFINITY 1500: Key facts
Battery capacity1,512 Wh
Battery chemistryLithium-ion
AC output1,800 W
Surge outputunknown
DC output126 W
USB-C output60 W
Solar input800 W
Weight16.5 kg
ConfidenceEstimated
Lifecycle statusUnknown
Source regionUS source
Last verified2026-10-25
Catalog notes (original English)

This record uses the US 120V/60Hz manual's 1800W default AC setting. The app can raise it to 2000W; the specification table's 4000W surge accompanies that maximum and does not establish a separate surge rating at the default setting, so surge remains unknown. The car-output row explicitly caps output at 126W despite also printing 13.6V/10A; the stated watt ceiling takes precedence over a 136W multiplication. USB-C is 60W per port, not 120W combined. Lithium-ion is the published battery class, not a verified cell subtype. The old sale-page URL no longer provides the evidence.

Regional source note Some specs are cross-checked against official regional pages. Regional SKUs can differ; verify the manufacturer page for your market before purchase or emergency planning. cdn.shopify.com: Growatt INFINITY 1500 120V user manual V1.2

Measurement Records

Third-party results apply to the listed model, output path and test load. The delta is against a fixed no-reserve planning formula, not an error score or a prediction at other loads. Missing test conditions remain unknown.

Swipe table sideways
Measurement Records: Growatt INFINITY 1500
TestMeasureddefault planning estimateVs estimateSource
Capacity test (AC)
Average test load: unknown
test date unknown		1,230 Wh
81%		1,285 Wh-55 Wh (-4%)HoboTech Growatt Infinity 1500 review
2023-03-05; accessed 2026-09-04
How To Use Measured Data

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.

Swipe table sideways
Runtime estimate
Device scenarioPlanning defaultEstimated runtimeDevice scenario: ConfidenceModels
Full-size refrigerator500 W · 33% · AC inverter · Reserve: 10%7h 1m
Output or startup compatibility is not established		EstimatedCalculator
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%1d 3h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%1d 15h
Exceeds a tracked power limit — do not rely on these hours		EstimatedCalculator
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%4d 3h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
LED TV100 W · 100% · AC inverter · Reserve: 10%11h 34m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
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): 1512 WhAC inverter: 1800 WSurge output rating (W): unknown
Growatt INFINITY 1500
Estimated runtime19h 17m12h 4m – 23h 56m

Within the tracked power limits; compatibility still needs checking

Estimated runtime: 19h 17m. 12h 4m – 23h 56m. Within the tracked power limits; compatibility still needs checking
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.

19h 17mEstimated runtime: 19h 17m. 12h 4m – 23h 56m. Within the tracked power limits; compatibility still needs checking

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

Conservative12h 4m
Estimated19h 17m
Optimistic23h 56m

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
1512 Wh
Usable energy
1157 Wh
1512 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
19h 17m
1157 Wh / 60 W = 19h 17m
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

WattRunTime.com

WattRunTime estimate

Estimated runtime

19h 17mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Usable energy1157 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative12h 4m
Estimated19h 17m
Optimistic23h 56m

Show your work

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

Usable energy1157 Wh1512 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 runtime19h 17m1157 Wh / 60 W = 19h 17m

Assumptions

  • 1512 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: 1,512 Wh. Size the battery for your measured average load and required hours, including reserve.
  • Tracked output: 1,800 W. Compare both running demand and startup demand before using any runtime estimate.
  • Solar input limit: 800 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: 16.5 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
  • unknown: Surge output

Models: Growatt

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

Sources