Jackery Explorer 300 v2: Runtime & Specs

By Hicham M. · Specs from Jackery's published documents, as of September 2026 · How we calculate

The Jackery Explorer 300 v2 is a 288 Wh LiFePO4 power station with 300 W of continuous AC output and a 600 W surge rating.

Capacity288 WhLiFePO4

Output300 W600 W surge

Solar input100 W16–28 V

Weight8.2 lbnot expandable

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Simulated runtimes (not measured)

Nobody tested this unit for this page. These figures come from a computer simulation of the Explorer 300 v2, and they are estimates. The plain runtime table below divides energy by average draw at 85% efficiency. The simulation also charges the battery for the power the inverter burns just by being switched on, which is why small loads come out shorter. Where we have measured a unit, the measurement is shown separately and labeled as measured.

Simulated runtimes for the Jackery Explorer 300 v2
Device	Spec-sheet math	Simulated, typical	Likely range	Simulated at 0 °C
Wi-Fi router + modem	16 hours	10 hours	9.3 hours to 12 hours	8.8 hours
CPAP (no humidifier)	8.2 hours	6.4 hours	6 hours to 7.1 hours	5.6 hours
Starlink Standard	2.7 hours	2.6 hours	2.5 hours to 2.7 hours	2.2 hours

Nonstop runtime from full to battery cutoff. Likely range = middle 80% of 200 simulated runs with the uncertain inputs varied. The inverter idle draw is assumed, not published: we assumed about 10 W for this model, varied from 6 to 15 W. If the real figure is lower, real runtimes land closer to the spec-sheet column.

How this was simulated

The battery is stepped down every 2 minutes until it reaches cutoff, for 200 runs per device. Results are seeded, so the page shows the same numbers on every build.
Battery draw = load + inverter idle draw + 4–8% of the load + a loss that rises with load squared (4% at full output).
Usable capacity = 92–98% of rated Wh, for protection cutoff and aging.
At 0 °C, 80–90% of that capacity is assumed available.
Fridges cycle on and off every 30–50 minutes at the share of the time set by their average draw. The inverter idle draw continues while the compressor is off.
Devices that exceed this model's output or surge rating are left out. Loads are US 120 V devices.

These ranges are assumptions about a typical unit. They are not manufacturer figures for the Jackery Explorer 300 v2. How we calculate · How we use AI

How long will the Explorer 300 v2 run your appliances?

Nonstop runtime for one device at a time, using typical US wattages and 85% inverter efficiency. Devices marked ✕ can't run on this model.

Estimated runtime by appliance for the Jackery Explorer 300 v2
Device	Avg draw	Runtime
LED light bulb	9 W	27 hours
Phone charging	10 W	26 hours
Wi-Fi router + modem	15 W	16 hours
Laptop	50 W	4.9 hours
CPAP (no humidifier)	30 W	8.2 hours
CPAP with heated humidifier	60 W	4.1 hours
Starlink Standard	90 W	2.7 hours
TV	100 W	2.4 hours
Mini fridge	29 W	8.4 hours
Refrigerator	58 W	Can’t start it
Chest freezer	29 W	Can’t start it
Sump pump (1/3 HP)	160 W	Not enough output
Sump pump (1/2 HP)	210 W	Not enough output
Window AC	225 W	Not enough output
Drip coffee maker	1,000 W	Not enough output
Microwave	1,500 W	Not enough output
Space heater	750 W	Not enough output
Well pump	33 W	Needs 240 V

Fridges, freezers, pumps and AC units cycle on and off, so we use their average draw. Want a mix of devices on a schedule? Use the runtime calculator.

What the Explorer 300 v2 can't power

Refrigerator (full-size, ENERGY STAR): needs about 1,200 W to start
Refrigerator (older full-size, 1990s–early 2000s): needs about 1,600 W to start
Chest freezer (7–15 cu ft): needs about 800 W to start
Upright freezer (frost-free, 13–20 cu ft): needs about 1,000 W to start
Microwave (1,000 W cooking power): needs 1,500 W running
Drip coffee maker (10–12 cup): needs 1,000 W running
Electric kettle (1.7 L): needs 1,500 W running
Toaster (2–4 slice): needs 1,000 W running
Induction burner (single, portable): needs 1,500 W running
Electric pressure cooker (6 qt, Instant Pot type): needs 1,000 W running
Blender (countertop): needs 400 W running
Rice cooker (5.5–6 cup): needs 600 W running
Window AC (5,000 BTU): needs 450 W running
Window AC (8,000 BTU): needs 700 W running
Space heater (portable, 1,500 W): needs 1,500 W running
Dehumidifier (50-pint): needs 490 W running
Gas furnace blower fan: needs 600 W running
Oxygen concentrator (home, 5 L/min): needs 310 W running
Sump pump (1/3 HP): needs 800 W running
Sump pump (1/2 HP): needs 1,050 W running
Well pump (1/2 HP submersible): needs 240 V
Washing machine: needs 500 W running
Garage door opener: needs 720 W running
Circular saw (7-1/4 in.): needs 1,400 W running
EV Level 1 charging (120 V, 12 A): needs 1,440 W running

Solar charging time

Hours of good sun to charge from empty, assuming panels deliver 75% of their rating.

Panels	Power in	Hours of sun
100 W of panels	75 W	3.8 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity	288 Wh
Amp-hours at 12 V (converted) How we convert	24 Ah (22.5 Ah at 12.8 V)
Battery chemistry LFP vs NMC	LiFePO4 (LFP)
Continuous AC output	300 W
Surge (peak) output	600 W
Boost mode	None listed
AC voltage	120V
AC outlets	2
USB-C ports	2 (up to 100 W)
USB-A ports	1
12 V car outlet	Yes
Max solar input	100 W
Solar voltage range	16–28 V
Solar max current	6 A
Max AC charging power	—
AC charging time (maker claim)	0–80% in 1 hr; ~1.5 hr to full (AC)
Expandable	No
UPS / EPS switchover What this means	20 ms
Cycle life What this means	4,000 cycles (to 70%)
Weight	8.2 lb
Warranty	5 years

Notes: Cycles to 70%. Solar via one 8mm DC input (16–28V ⎓6A, 100W); USB-C input 100W. UPS 20ms per product page; FAQ says 10ms. Warranty 3+2 yrs.

Specs from Jackery's published documents, as of September 2026. Found an error? Tell us.

Sources

Similar power stations

Questions

How long will the Jackery Explorer 300 v2 run a refrigerator?

It may not: a typical fridge compressor needs about 1,200 W for a moment to start, above this model's 600 W surge rating. Newer, smaller fridges may start fine.

Can the Jackery Explorer 300 v2 run a microwave?

Not a full-size one. A typical 1,000 W microwave pulls about 1,500 W from the outlet, more than its 300 W continuous output.

How many amp-hours is the Jackery Explorer 300 v2?

The Jackery Explorer 300 v2 works out to about 24 Ah at 12 V, or 22.5 Ah at 12.8 V, the nominal voltage of a 12 V LiFePO4 battery. Both are our conversion of Jackery's 288 Wh rating: amp-hours = watt-hours ÷ volts. The battery inside may run at a different voltage, so an amp-hour figure in a manual or on a product listing can look very different for the same energy. For scale, a 12 V 100 Ah LiFePO4 battery holds 1,280 Wh, so this model holds about 23% as much as one. How we convert amp-hours.

How long does the Jackery Explorer 300 v2 take to charge?

Jackery's published charging claim: “0–80% in 1 hr; ~1.5 hr to full (AC)”. With solar, it accepts up to 100 W. With 100 W of panels that's roughly 3.8 hours of good sun from empty.

Is the Jackery Explorer 300 v2 expandable?

No. Its capacity is fixed at 288 Wh.

Does the Jackery Explorer 300 v2 work as a UPS?

Jackery lists a 20 ms switchover time, so it can keep devices like routers and computers running when the power drops. Check that your specific device tolerates the switch before relying on it for anything critical.