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Energizer PPS300W2 Runtime Calculator

Quick answer: the Energizer PPS300W2 stores 293.76 Wh and delivers up to 300 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 2.2 hours. Last source check: 2026-08-08. This is an estimate, not a guarantee.

Energizer PPS300W2 portable power station
Battery capacity293.76 Wh
AC output300 W
Surge output600 W
Battery chemistryLithium-ion
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-08
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Energizer PPS300W2: Key facts
Battery capacity293.76 Wh
Battery chemistryLithium-ion
AC output300 W
Surge output600 W
DC output120 W
USB-C output60 W
Solar input60 W
Weight3.55 kg
ConfidenceVerified
Lifecycle statusUnknown
Source regionGlobal/general sources
Last verified2026-08-08
Catalog notes (original English)

Regional 230V model. DC stores the published shared 12V/10A maximum across the DC and car outlets.

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%1h 22m
Exceeds a tracked power limit — do not rely on these hours		EstimatedCalculator
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%5h 18m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%7h 36m
Exceeds a tracked power limit — do not rely on these hours		EstimatedCalculator
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%19h 23m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
LED TV100 W · 100% · AC inverter · Reserve: 10%2h 15m
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): 294 WhContinuous output rating (W): 300 WSurge output rating (W): 600 W
Energizer PPS300W2
Estimated runtime3h 45m2h 21m – 4h 39mEstimated runtime: 3h 45m, 2h 21m – 4h 39m
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.

3h 45mEstimated runtime: 3h 45m

This setup is tight. Reduce load, use DC where possible, or choose a larger station.

Conservative2h 21m
Estimated3h 45m
Optimistic4h 39m

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
294 Wh
Usable energy
225 Wh
294 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
3h 45m
225 Wh / 60 W = 3h 45m
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 estimate

Estimated runtime

3h 45mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Usable energy225 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative2h 21m
Estimated3h 45m
Optimistic4h 39m

Show your work

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

Usable energy225 Wh294 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 runtime3h 45m225 Wh / 60 W = 3h 45m

Assumptions

  • 294 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: 293.76 Wh. Size the battery for your measured average load and required hours, including reserve.
  • Tracked output: 300 W. Compare both running demand and startup demand before using any runtime estimate.
  • Solar input limit: 60 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: 3.55 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
  • unknown: —

Models: Energizer

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

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