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Xtorm Xtreme Power 2 Smart Pro 1800W Runtime Calculator

Quick answer: the Xtorm Xtreme Power 2 Smart Pro 1800W stores 1,229 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 9.4 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.

Battery capacity1,229 Wh
AC output1,800 W
Surge output3,000 W
Battery chemistryLiFePO4
ConfidenceEstimated
Source regionRegional source
checked2026-08-27
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Xtorm Xtreme Power 2 Smart Pro 1800W: Key facts
Battery capacity1,229 Wh
Battery chemistryLiFePO4
AC output1,800 W
Surge output3,000 W
DC outputunknown
USB-C output100 W
Solar input400 W
Weight19.4 kg
ConfidenceEstimated
Lifecycle statusUnknown
Source regionRegional source
Last verified2026-08-27
Catalog notes (original English)

Xtorm publishes no wattage for the 12V car socket, so DC output stays unknown. Xtorm is a Netherlands-based brand and publishes these figures on its European xtorm.eu storefront, so the AC ratings describe the 230V EU-market SKU rather than a 120V variant.

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. xtorm.eu: Xtorm official Smart Pro Powerstation 1800W product page

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%5h 42m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%22h 12m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%1d 7h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%3d 9h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
LED TV100 W · 100% · AC inverter · Reserve: 10%9h 24m
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): 1229 WhContinuous output rating (W): 1800 WSurge output rating (W): 3000 W
Xtorm Xtreme Power 2 Smart Pro 1800W
Estimated runtime15h 40m9h 48m – 19h 28mEstimated runtime: 15h 40m, 9h 48m – 19h 28m
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.

15h 40mEstimated runtime: 15h 40m

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

Conservative9h 48m
Estimated15h 40m
Optimistic19h 28m

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
1229 Wh
Usable energy
940 Wh
1229 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
15h 40m
940 Wh / 60 W = 15h 40m
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

15h 40mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Usable energy940 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative9h 48m
Estimated15h 40m
Optimistic19h 28m

Show your work

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

Usable energy940 Wh1229 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 runtime15h 40m940 Wh / 60 W = 15h 40m

Assumptions

  • 1229 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: 1,229 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: 400 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: 19.4 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
  • unknown: DC output

Models: Xtorm

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

Sources