Evidence: incomplete
Jackery Explorer 300 Plus
A specification-based US-variant profile with an editable runtime model. Not a hands-on review or measured performance test.
Data verified: 2026-10-01 · Market: US · Generation: Plus
What this profile can tell you
The capacity and output figures below come from the cited manufacturer material for the US model. Use them to test a specific load, compare size and weight, and identify specifications that still need confirmation. Calculated runtime is an estimate built from the assumptions you choose; it is not a measured claim about this unit.
US model specifications
| Nominal capacity | 288 Wh |
|---|---|
| Continuous AC output | 300 W |
| AC voltage/frequency | 120 V, 60 Hz |
| Surge | 600 W; duration not documented |
| Marketing boost mode | None documented |
| Chemistry / cycle claim | Lithium-ion; subtype not established by the cited US manual; cycle claim not established |
| Weight | 3.75 kg / 8.3 lb |
| Dimensions | 230 × 155 × 167 mm |
| Maximum AC charging input | Unknown |
| Solar input | 100 W maximum; USB-C DC input: 12–27 V, 5 A, 100 W maximum; adapter compatibility must be checked |
| Warranty | Not established from the cited source |
Planning scenarios
These are calculated illustrations, not tests. Each assumes a new-capacity factor, a full starting charge, a 10% stopping reserve, 85% AC conversion efficiency, and 5 W of inverter idle draw. Replace them with your own settings in the runtime tool below.
| Sustained AC load | Battery-side demand | Estimated runtime | Output check |
|---|---|---|---|
| 50 W | 63.8 W | 4.1 hours | Below documented 300 W continuous limit |
| 100 W | 122.6 W | 2.1 hours | Below documented 300 W continuous limit |
| 300 W | 357.9 W | 0.7 hours | Below documented 300 W continuous limit |
A capacity-based runtime does not establish startup compatibility. The table also does not model charging while in use, temperature, battery management limits, or changing device loads.
Planning runtime
The station capacity and documented continuous output below are product facts. Efficiency, reserve, idle draw, and health remain editable planning assumptions, not measured model performance.
Estimated runtime
Enter your sustained average load and calculate.
Tradeoffs and unresolved checks
- US 120 V specifications now cite the US manual; the former 230 V European manual is not used. Current warranty and surge duration remain unverified.
- USB/DC compatibility requires matching individual and shared port limits, voltage profiles, protocols, and cables.
- Solar input wattage alone does not establish voltage, current, polarity, or connector compatibility.
- Calculated runtime is not measured runtime and may differ with load, temperature, unit condition, and firmware behavior.
Manufacturer and evidence
- Capacity evidence
- Explorer 300 Plus User Manual, US English, model JE-300B
- Output evidence
- Explorer 300 Plus User Manual, US English, model JE-300B
- Physical evidence
- Explorer 300 Plus User Manual, US English, model JE-300B
- Charging evidence
- Explorer 300 Plus User Manual, US English, model JE-300B
- Warranty evidence
- Not established from the cited sources
This page uses an ordinary manufacturer link.
- Jackery: Explorer 300 Plus User Manual, US English, model JE-300B — accessed 2026-10-01. PDF page 3 (printed page 01): 288 Wh, 300 W rated / 600 W surge, 3.75 kg, dimensions, and 100 W USB-C DC charging limit. Surge duration is not specified.