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Jackery Explorer 300 Plus Runtime Calculator
Quick answer: the Jackery Explorer 300 Plus stores 288 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: 2026-08-20. This is an estimate, not a guarantee.
| Battery capacity | 288 Wh |
|---|---|
| Battery chemistry | LFP (LiFePO4) |
| AC output | 300 W |
| Surge output | 600 W |
| DC output | 120 W |
| USB-C output | 100 W |
| Solar input | 100 W |
| Weight | 3.75 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | Mixed regional sources |
| Last verified | 2026-08-20 |
Regional outlet voltage and layout differ; the checked North American manual and regional product page publish the same planning watt ceilings.
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.
| Device scenario | Planning default | Estimated runtime | Device scenario: Confidence | Models |
|---|---|---|---|---|
| Full-size refrigerator | 500 W · 33% · AC inverter · Reserve: 10% | 1h 20m Exceeds a tracked power limit — do not rely on these hours | Estimated | Open estimate |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 5h 12m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 7h 27m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 19h 0m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 2h 12m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
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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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 40mEstimated runtime: 3h 40mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
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
- 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.
WattRunTime.com
WattRunTime estimate
Estimated runtime
3h 40mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Runtime range
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
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.
- Within the tracked power limits; compatibility still needs checking
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Planning notes
- Capacity class: 288 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: 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: 3.75 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: —
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 v2
288 Wh · AC output: 300 W · Confidence: Verified
Jackery Explorer 300D
288 Wh · AC output: unknown · Confidence: Verified
Jackery Explorer 300
293.8 Wh · AC output: 300 W · Confidence: Estimated
Specification comparison
Use these as planning shortcuts, then confirm the full table and sources.
Jackery Explorer 300 Plus vs Goal Zero Yeti 500X
288 Wh / 497 Wh · AC output: 300 W / 300 W
Goal Zero Yeti 300 vs Jackery Explorer 300 Plus
296.96 Wh / 288 Wh · AC output: 350 W / 300 W
Sources
- Jackery Explorer 300 Plus specifications (Official; checked 2026-08-20)
- Jackery Explorer 300 Plus user manual (Official; checked 2026-08-20)
