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What will a Jackery Explorer 300 Plus run, and for how long? (US 120 V)

A “300 W” power station is two numbers wearing one label. Watts are the ceiling on what you can switch on at once; watt-hours are how much energy is in the battery. The Jackery Explorer 300 Plus holds 300 W and stores 288 Wh on the nameplate — and those two facts answer two different questions.

This page answers both. The runtimes below divide a usable-capacity figure derived from Jackery's own published usable-capacity coefficient, with the machine's idle draw in the denominator — not the nameplate.

The three numbers that decide everything else

Continuous output 300 W
Official spec · verified 2026-08-01 · high confidence
Surge ceiling 600 W
Official spec · verified 2026-08-01 · high confidence
Usable capacity 230.4 Wh
Derived from official coefficients · verified 2026-08-08 · medium confidence

The arithmetic: 288 Wh nameplate × 80% published capacity coefficient = 230.4 Wh

Official spec + Derived from official coefficientsverified 2026-08-09US 120 V unit

What Jackery Explorer 300 Plus runs

Every row is a live calculation against this machine's continuous output, surge ceiling and inverter waveform — running watts, start-up inrush and duty cycle on the appliance side. Of 38 appliance profiles, 13 run, 2 are a tight fit and 23 are out of reach. The percentage is the load as a share of continuous output; anything past 82% drops out of the green.

12V portable fridge/freezer Refrigeration 90 W running · 180 W at start-up Runs it30% Air fryer Cooking 1,700 W running · 1,700 W at start-up limited by continuous output Too big567% Aquarium air pump Pumps 2.8 W running runs about 16 h on a full charge limited by surge ceiling We hold no start-up surge figure for this appliance, so the verdict is capped below green — the running watts alone are comfortable. Tight fit0.9% Aquarium heater Heating 100 W running · 100 W at start-up runs about 2.1 h on a full charge Runs it33% Box fan Cooling 80 W running runs about 2.5 h on a full charge limited by surge ceiling We hold no start-up surge figure for this appliance, so the verdict is capped below green — the running watts alone are comfortable. Tight fit27% Chest freezer Refrigeration 30 W running · 156 W at start-up runs about 6.1 h on a full charge Runs it10% Coffee maker Cooking 1,400 W running · 1,400 W at start-up limited by continuous output Too big467% CPAP machine Medical 22 W running · 22 W at start-up runs about 6.8 h on a full charge Runs it7.3% Desktop PC Computing 13 W running · 13 W at start-up runs about 9.2 h on a full charge The measured inrush here is a millisecond-scale capacitive spike, which is not the same quantity as a surge rating and is not held against the verdict. Runs it4.4% Diesel air heater Heating 34 W running · 34 W at start-up runs about 5.0 h on a full charge Runs it11% Electric blanket Heating 60 W running · 60 W at start-up runs about 3.2 h on a full charge Runs it20% Electric kettle Cooking 1,500 W running · 1,500 W at start-up limited by continuous output Too big500% Electric space heater (1500 W) Heating 1,500 W running · 1,500 W at start-up limited by continuous output Too big500% Full-size refrigerator Refrigeration 55 W running · 286 W at start-up runs about 3.9 h on a full charge Runs it18% Gas furnace blower Heating 548 W running limited by continuous output We hold no start-up surge figure for this appliance, so the verdict is capped below green — the running watts alone are comfortable. Too big183% Hair dryer Personal care 1,875 W running limited by continuous output We hold no start-up surge figure for this appliance, so the verdict is capped below green — the running watts alone are comfortable. Too big625% Home oxygen concentrator Medical 310 W running limited by continuous output We hold no start-up surge figure for this appliance, so the verdict is capped below green — the running watts alone are comfortable. Too big103% Inverter window air conditioner (U-shaped) Cooling 667 W running · 667 W at start-up limited by continuous output Too big222% Laptop computer Computing 5.2 W running · 5.2 W at start-up runs about 13 h on a full charge The measured inrush here is a millisecond-scale capacitive spike, which is not the same quantity as a surge rating and is not held against the verdict. Runs it1.7% LED light bulb Lighting 8.5 W running · 8.5 W at start-up runs about 11 h on a full charge Runs it2.8% LED TV TV & entertainment 108 W running · 108 W at start-up runs about 1.9 h on a full charge Runs it36% Microwave oven Cooking 1,480 W running limited by continuous output We hold no start-up surge figure for this appliance, so the verdict is capped below green — the running watts alone are comfortable. Too big493% Mini fridge Refrigeration 161 W running · 2,530 W at start-up limited by surge ceiling Too big422% of surge ceiling Mini-split heat pump Cooling 1,740 W running · 1,740 W at start-up limited by mains standard Wrong mains Pancake air compressor Power tools 1,800 W running · 10,800 W at start-up limited by continuous output Too big600% Portable air conditioner Cooling 1,300 W running · 7,800 W at start-up limited by continuous output Too big433% Portable induction cooktop Cooking 1,800 W running · 1,800 W at start-up limited by continuous output Too big600% Portable split air conditioner (hose-through-window) Cooling 1,500 W running · 1,500 W at start-up limited by mains standard Wrong mains Router + modem Internet 9.1 W running · 9.1 W at start-up runs about 11 h on a full charge Runs it3.0% RV rooftop air conditioner RV & marine 1,690 W running · 8,619 W at start-up limited by continuous output Too big563% Starlink Mini Internet 40 W running · 60 W at start-up runs about 4.4 h on a full charge Runs it13% Sump pump Pumps 720 W running · 2,645 W at start-up limited by continuous output Too big240% Variable-speed pool pump Pumps 627 W running · 627 W at start-up limited by continuous output Too big209% Video projector TV & entertainment 345 W running · 345 W at start-up limited by continuous output Too big115% Washing machine Laundry 1,200 W running · 1,200 W at start-up limited by continuous output Too big400% Welder (stick / MIG) Power tools 2,700 W running · 2,700 W at start-up limited by continuous output Too big900% Well pump Pumps 660 W running · 6,762 W at start-up limited by continuous output Too big220% Window air conditioner Cooling 833 W running · 6,900 W at start-up limited by continuous output Too big278%

Where this machine ranks against the alternatives

Solar panels this machine can legally take

The binding constraint is voltage, not watts: open-circuit voltage RISES as it gets colder, and an array that is fine at noon can be over the MPPT ceiling at dawn. Each row is the engine's largest legal array for this station, with Voc corrected to -10 °C ambient . Only panels whose datasheet publishes a voltage temperature coefficient are evaluated — the others cannot be corrected, and an under-corrected array is what destroys an MPPT input.

Jackery SolarSaga 100 Air No legal arrangement on this station. Voc at the design minimum: 32.3 V Panel connector: DC8020 Blocked by cold Voc.
Renogy 100W N-Type Monocrystalline Solar Panel No legal arrangement on this station. Voc at the design minimum: 24.9 V Panel connector: Solar Connectors Blocked by input current. We have found no published connector standard for it.
Renogy 200W N-Type Monocrystalline Solar Panel No legal arrangement on this station. Voc at the design minimum: 40.8 V Panel connector: Solar Connectors Blocked by cold Voc and input current. We have found no published connector standard for it.

Every field we hold on this machine

Each figure carries the tier it came from and the date it was checked. A blank is never left blank: a field we have found no figure for says so, and a field two manufacturer sources disagree about says that instead of picking one.

AC output

What the inverter can hold, what it can start, and what shape the wave is.

Continuous output 300 W Official spec · verified 2026-08-01 · high confidence
Surge ceiling 600 W Official spec · verified 2026-08-01 · high confidence
Surge duration Not found in the sources we checked no figure to date
Boost mode Not found in the sources we checked no figure to date
Boost output Not found in the sources we checked no figure to date

The verdict engine never counts boost output as continuous output: it works by dropping voltage and can fail on motors and compressors.

Inverter waveform Pure sine wave Official spec · verified 2026-08-08 · high confidence
Inverter efficiency Not found in the sources we checked no figure to date

We read 3 of Jackery’s own published documents on 2026-08-08 and found no inverter efficiency for the US 120 V build in them.

AC voltage 120 V Official spec · verified 2026-08-01 · high confidence
AC frequency 60 Hz Official spec · verified 2026-08-01 · high confidence
Outlet standard NEMA 5-15R Official spec · verified 2026-08-01 · medium confidence
UPS switchover Not found in the sources we checked no figure to date
Idle draw 12 W Official spec · verified 2026-08-08 · medium confidence

What the machine consumes just being switched on. It sits in the runtime denominator, and a record we hold no figure for makes every runtime optimistic.

Battery and energy

The nameplate, what is actually retrievable from it, and how long the cells last.

Nominal capacity 288 Wh Official spec · verified 2026-08-01 · high confidence
Usable capacity 230.4 Wh Derived from official coefficients · verified 2026-08-08 · medium confidence

The arithmetic: 288 Wh nameplate × 80% published capacity coefficient = 230.4 Wh

Jackery publishes the coefficient but not this figure, so it is computed rather than copied — which is why its confidence is capped below the specs around it.

Depth of discharge Not found in the sources we checked no figure to date

We read 3 of Jackery’s own published documents on 2026-08-08 and found no depth of discharge for the US 120 V build in them.

Chemistry LiFePO4 (LFP) Official spec · verified 2026-08-01 · high confidence
Cycle life 3,000 cycles Official spec · verified 2026-08-01 · high confidence
Capacity at end of cycle life 80% Official spec · verified 2026-08-01 · high confidence
Warranty 5 years Official spec · verified 2026-08-01 · high confidence
Discharge temperature (min) -10 °C Official spec · verified 2026-08-01 · high confidence
Discharge temperature (max) 45 °C Official spec · verified 2026-08-01 · high confidence
Charge temperature (min) 0 °C Official spec · verified 2026-08-01 · high confidence

Charging and expansion

How fast it refills from the wall, and whether more battery can be bolted on.

AC input (max) Not found in the sources we checked no figure to date
Wall charge, 0–100% 120 min Official spec · verified 2026-08-01 · high confidence
Wall charge, 0–80% Not found in the sources we checked no figure to date
Car input (max) Not found in the sources we checked no figure to date
Combined input (max) Not found in the sources we checked no figure to date
Expandable No Official spec · verified 2026-08-01 · medium confidence
Capacity with expansion Not applicable to this model no figure to date
Extra batteries supported Not applicable to this model no figure to date

Solar input

The window an array has to land inside. Voltage is the constraint that burns hardware.

Solar input (max) 100 W Official spec · verified 2026-08-01 · high confidence
MPPT window (min) 12 V Official spec · verified 2026-08-01 · high confidence
MPPT window (max) 27 V Official spec · verified 2026-08-01 · high confidence
Input current (max) 5 A Official spec · verified 2026-08-01 · high confidence
Solar connector USB-C Official spec · verified 2026-08-01 · high confidence

Physical and travel

Weight, size, noise — and whether an airline will let it on board.

Weight 3.8 kg Official spec · verified 2026-08-01 · high confidence
Length 230 mm Official spec · verified 2026-08-01 · high confidence
Width 155 mm Official spec · verified 2026-08-01 · high confidence
Height 167 mm Official spec · verified 2026-08-01 · high confidence
Noise Not found in the sources we checked no figure to date
App control Yes Official spec · verified 2026-08-01 · high confidence
Connectivity Wi-Fi, Bluetooth Official spec · verified 2026-08-01 · high confidence
Capacity for airline rules 288 Wh Official spec · verified 2026-08-01 · high confidence

IATA lets passengers carry lithium batteries up to 100 Wh freely and 100–160 Wh with airline approval. Above that, no passenger aircraft.

Where to buy

Out of stock at the official store · checked 2026-08-16

Out of stock at the official store when we checked on 2026-08-16. We are not sending you to a sold-out page with a buy button on it — the link below goes to the product page, where you can set a restock alert.

Where to buy the Jackery Explorer 300 Plus

Prices checked 2026-08-17

Jackery Official Store (US) $299.99 Product page →

Compare with its neighbours

Jackery Explorer 300 Plus (EU 230 V) Same model on 230 V mains — different outlets, and the specs below are not interchangeable. BLUETTI Elite 30 V2 (US 120 V) 600 W continuous against this machine's 300 W.

Each link goes to that machine's own record. Every record holds the same fields in the same order and states the same tier and date beside each one, so two of them read side by side compare cleanly.

Where to go next

Questions people ask about this machine

Will a Jackery Explorer 300 Plus run a full-size refrigerator?
Yes. Against the US 120 V record, the full-size refrigerator draws 55 W running · 286 W at start-up — 18% of this machine's continuous output, and the pair runs for about 3.9 h. That verdict is a calculation from running watts, start-up surge and inverter waveform, not a lookup, and the full working is one click away in the table above.
Why can't a Jackery Explorer 300 Plus run an electric space heater (1500 W)?
On the US 120 V record the binding constraint is the continuous output. The electric space heater (1500 W) needs 1,500 W running · 1,500 W at start-up, and at 500% of continuous output there is no headroom to give. No accessory fixes this one — it takes a machine with a bigger inverter.
How long does a Jackery Explorer 300 Plus last?
It depends entirely on the load, and that is the part most pages skip. On our figures the Jackery Explorer 300 Plus runs an aquarium air pump for about 16 h, and an aquarium heater for about 2.1 h. Those hours come from a usable-capacity figure derived from Jackery's published usable-capacity coefficient, with the machine's own idle draw in the denominator — not from dividing the nameplate watt-hours by a label wattage.
How long does a Jackery Explorer 300 Plus take to charge?
Jackery states 120 minutes from empty to full on mains power. That is a manufacturer figure measured under their conditions, verified on 2026-08-01; a cold battery, a weak circuit or a lower charge-rate setting all make it longer.
Can you take a Jackery Explorer 300 Plus on a plane?
No. At 288 Wh it is far above the 160 Wh ceiling that airlines apply to lithium batteries in the cabin, and lithium batteries of this size are not accepted in checked baggage either. The 100 Wh / 160 Wh thresholds come from the IATA dangerous-goods rules that carriers implement; check your airline before travelling, because the approval step above 100 Wh is theirs to give.
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Runs 13 of 38 test loads Jackery Explorer 300 Plus · from $299.99

Out of stock · product page →