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Jackery Explorer 300D Runtime Calculator

Quick answer: the Jackery Explorer 300D stores 288 Wh. Its continuous AC rating is not confirmed by a usable source, so this record keeps the field unknown rather than guessing — check the sources below before planning AC loads. Last source check: 2026-08-21. This is an estimate, not a guarantee.

Jackery Explorer 300D portable power station
Battery capacity288 Wh
AC outputunknown
Surge outputunknown
Battery chemistryLiFePO4
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-21
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Jackery Explorer 300D: Key facts
Battery capacity288 Wh
Battery chemistryLiFePO4
AC outputunknown
Surge outputunknown
DC output300 W
USB-C output140 W
Solar input100 W
Weight2.5 kg
ConfidenceVerified
Lifecycle statusUnknown
Source regionGlobal/general sources
Last verified2026-08-21
Catalog notes (original English)

The exact JE-300D sources distinguish the 300W combined DC-only output ceiling from the 140W highest single USB-C port. AC output and AC surge are not available; the separate car port is rated 12V/10A.

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 20m
Output or startup compatibility is not established		EstimatedCalculator
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%5h 12m
Output or startup compatibility is not established		EstimatedCalculator
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%7h 27m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%19h 0m
Output or startup compatibility is not established		EstimatedCalculator
LED TV100 W · 100% · AC inverter · Reserve: 10%2h 12m
Output or startup compatibility is not established		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): 288 WhContinuous output rating (W): n/aSurge output rating (W): n/a
Jackery Explorer 300D
Estimated runtime3h 40m2h 18m – 4h 34mEstimated runtime: 3h 40m, 2h 18m – 4h 34m
Output path

Estimated runtime

Output or startup compatibility is not established

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 40mEstimated runtime: 3h 40m

Output or startup compatibility is not established

Conservative2h 18m
Estimated3h 40m
Optimistic4h 34m

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.
  • Output or startup compatibility is not established
  • The selected station output rating is unknown, so running-load compatibility is not verified.

Show your work

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

Rated battery
288 Wh
Usable energy
220 Wh
288 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 40m
220 Wh / 60 W = 3h 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.

Source-Backed Next Steps

WattRunTime.com

WattRunTime estimate

Estimated runtime

3h 40mOutput or startup compatibility is not established
Usable energy220 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative2h 18m
Estimated3h 40m
Optimistic4h 34m

Show your work

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

Usable energy220 Wh288 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 40m220 Wh / 60 W = 3h 40m

Assumptions

  • 288 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.
  • Output or startup compatibility is not established
  • The selected station output rating is unknown, so running-load compatibility is not verified.

Planning notes

  • Capacity class: 288 Wh. Size the battery for your measured average load and required hours, including reserve.
  • Tracked output: unknown. Compare both running demand and startup demand before using any runtime estimate.
  • Solar input limit: 100 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: 2.5 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
  • unknown: AC output, Surge output

Models: Jackery

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

Sources