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Jackery Explorer 300 Runtime Calculator
Quick answer: the Jackery Explorer 300 stores 293.8 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: 2026-08-21. This is an estimate, not a guarantee.
Battery capacity293.8 Wh
AC output300 W
Surge output500 W
Battery chemistryLi-ion NMC
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-21
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| Battery capacity | 293.8 Wh |
|---|---|
| Battery chemistry | Li-ion NMC |
| AC output | 300 W |
| Surge output | 500 W |
| DC output | 120 W |
| USB-C output | 60 W |
| Solar input | unknown |
| Weight | 3.2 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-21 |
Catalog notes (original English)
The exact manual identifies a 90W wall adapter and recommends one SolarSaga 100 panel, but neither the manual nor the current support table publishes a solar-input watt ceiling. Compatibility and recharge timing are not treated as that ceiling, and voltage/current ranges are not multiplied into an inferred value, so solar input remains unknown.
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.
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| Test | Measured | default planning estimate | Vs estimate | Source |
|---|---|---|---|---|
| Capacity test (AC) Average test load: unknown test date unknown | 260 Wh 89% | 250 Wh | +10 Wh (+4%) | OutdoorGearLab Best Power Stations of 2026 source date unknown; accessed 2026-09-04 |
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
| Device scenario | Planning default | Estimated runtime | Device scenario: Confidence | Models |
|---|---|---|---|---|
| Full-size refrigerator | 500 W · 33% · AC inverter · Reserve: 10% | 1h 22m Exceeds a tracked power limit — do not rely on these hours | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 5h 18m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 7h 36m Exceeds a tracked power limit — do not rely on these hours | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 19h 23m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 2h 15m Within the tracked power limits; compatibility still needs checking | Estimated | 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.
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Power station model
Battery capacity (Wh): 294 WhContinuous output rating (W): 300 WSurge output rating (W): 500 W
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 45mThis 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.
Source-Backed Next Steps
Smallest matching record (8h)Jackery Explorer 600 Plus
WattRunTime.com
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
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Planning notes
- Capacity class: 293.8 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: unknown. 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: 3.2 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: Solar input
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.
Jackery Explorer 300 Plus
288 Wh · AC output: 300 W · Confidence: Verified
Jackery Explorer 300 v2
288 Wh · AC output: 300 W · Confidence: Verified
Jackery Explorer 300D
288 Wh · AC output: unknown · Confidence: Verified
Sources
- Jackery Explorer 300 product page (Official; checked 2026-08-21)
- Jackery Explorer 300 user manual (Official; checked 2026-08-21)
- Jackery Explorer 300 support table (Official; checked 2026-08-21)