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Jackery Explorer 300 Plus

Portable power station · Overall fit profile

Explorer 300 Plus (JE-300B) is an 3.8 kg, 288 Wh unit rated at 300 W continuous output; its US source specifies 100 V AC output.

Capacity288 Wh
AC output300 W
Surge600 W
Solar input100 W
Weight3.8 kg
Evidence
Manufacturer-controlled
Model
Explorer 300 Plus
Reviewed
2026-10-22
Jackery Explorer 300 Plus product image 1 / 2

Historical context

30-day average
CAD 377.60
90-day average
CAD 388.48
180-day average
CAD 385.44
Historical low
CAD 269.00
Historical high
CAD 547.51

At a glance

Bottom Line

Explorer 300 Plus (JE-300B) is an 3.8 kg, 288 Wh unit rated at 300 W continuous output; its US source specifies 100 V AC output.

Strengths

Practical advantages

  • Compact rated outputThe 3.8 kg unit combines 288 Wh capacity, 300 W continuous output and a 100 W USB-C port.
  • Panel-specific solar timesJackery lists approximately 9.5 h with SolarSaga 40, 6.3 h with 80, 4.6 h with 100 and 3.8 h with 200; one panel is supported.

Tradeoffs

Supported limitations

  • 100 V AC outputOutput is 100 V / 3 A, up to 300 W at 60 Hz; check device compatibility before connecting 120 V equipment.
  • EPS and shared charging inputJackery describes transfer up to 20 ms as EPS, not a 0 ms UPS for servers or workstations; solar and car charging share one input, cannot be connected together, and expansion batteries are unsupported.

Evidence gaps

What remains unknown

  • Dimension axis labelsThe source publishes dimensions but its W/L and D/W axis wording does not establish an unambiguous length, width and height order.
  • AC input toleranceAC input is stated as 200 ± 20 W across 100–120 V, with 10 A maximum; the tolerance should remain explicit.

Best for

Scenario fit

Consider it for light-duty use when 100 V AC is compatible and its 288 Wh / 300 W limits fit; solar and car charging cannot run together.

CampingGood fit · 95% coverageAt 3.8 kg, it is easier to move between a vehicle, tent or tailgate.
RVGate not met · 66% coverageNot rated: continuous output does not meet this scenario's assessment criteria.Missing: expanded capacity, single-base 240 V output
Home BackupGate not met · 80% coverageNot rated: capacity, continuous output does not meet this scenario's assessment criteria.Missing: expanded capacity
EmergencyLimited fit · 75% coverageMissing: AC input
CPAPConditional fit · 90% coverageAt 3.8 kg, it is easier to move between home and travel.

Key facts

Core specifications

CAPACITY

288 Wh

Rated capacity

Continuous

300 W

Continuous

SURGE

600 W

Peak capability

SOLAR INPUT

100 W

Maximum

WEIGHT

3.8 kg

BATTERY

LiFePO4

Cycle life

=3000 cycles

3000 cycles to at least 70% capacity.; manufacturer retention claim: 70% at stated cycle threshold

Recharge paths

Charging specifications

SOLAR INPUT

100 W

Maximum

CAR CHARGE INPUT

100 W

Power and connections

Output specifications

AC OUTPUT

300 W

Continuous

SURGE

600 W

Peak capability per manufacturer

AC OUTLETS

1 port

AC outlet

100 V · US Help Center lists 100V output.

DC OUTPUTS

1 port

Car outlet

12 V · 10 A

USB

1 port

USB-A

Group maximum: 15 W

USB

1 port

USB-C

Group maximum: 100 W · USB-C output rating; solar/car input routing is documented separately.

USB

1 port

USB-C

Group maximum: 15 W · Second USB-C output rating; input routing not assigned to a specific port.

AC output voltage

100 V

AC output frequency

60 Hz

AC waveform

Yes

Expandability

Capacity beyond the base

Battery expansion

No

Portability

Size the move

PRODUCT WEIGHT

3.8 kg

Manufacturer-published weight

UPS / EPS

Transfer behavior

UPS / EPS

Supported

For compatible connected equipment

UPS / EPS transfer time

≤20 ms

Up to 20ms EPS switchover; not zero-interruption UPS.

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