Jackery Explorer 1500 Ultra: Runtime & Specs

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

The Jackery Explorer 1500 Ultra is a 1,536 Wh LiFePO4 power station with 1,800 W of continuous AC output and a 3,600 W surge rating. It runs a typical full-size fridge for about 23 hours.

Capacity1,536 WhLiFePO4

Output1,800 W3,600 W surge

Solar input800 W16–60 V

Weight38.6 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 1500 Ultra, 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 1500 Ultra
Device	Spec-sheet math	Simulated, typical	Likely range	Simulated at 0 °C
Wi-Fi router + modem	3.6 days	43 hours	35 hours to 2.1 days	36 hours
CPAP (no humidifier)	44 hours	28 hours	25 hours to 32 hours	24 hours
Starlink Standard	15 hours	13 hours	12 hours to 13 hours	11 hours
Refrigerator (full-size, ENERGY STAR)	23 hours	18 hours	17 hours to 20 hours	15 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 19 W for this model, varied from 11 to 28 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 1500 Ultra. How we calculate · How we use AI

How long will the Explorer 1500 Ultra 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 1500 Ultra
Device	Avg draw	Runtime
LED light bulb	9 W	6 days
Phone charging	10 W	5.8 days
Wi-Fi router + modem	15 W	3.6 days
Laptop	50 W	26 hours
CPAP (no humidifier)	30 W	44 hours
CPAP with heated humidifier	60 W	22 hours
Starlink Standard	90 W	15 hours
TV	100 W	13 hours
Mini fridge	29 W	45 hours
Refrigerator	58 W	23 hours
Chest freezer	29 W	45 hours
Sump pump (1/3 HP)	160 W	8.2 hours
Sump pump (1/2 HP)	210 W	6.2 hours
Window AC	225 W	5.8 hours
Drip coffee maker	1,000 W	1.3 hours
Microwave	1,500 W	52 min
Space heater	750 W	1.7 hours
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 1500 Ultra can't power

Well pump (1/2 HP submersible): needs 240 V

Solar charging time

Hours of good sun to charge from empty, assuming panels deliver 75% of their rating and one array per 400 W solar input.

Panels	Power in	Hours of sun
100 W of panels	75 W	20 hours
200 W of panels	150 W	10 hours
400 W of panels	300 W	5.1 hours
800 W of panels (split across inputs)	600 W	2.6 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity	1,536 Wh
Amp-hours at 12 V (converted) How we convert	128 Ah (120 Ah at 12.8 V)
Battery chemistry LFP vs NMC	LiFePO4 (LFP)
Continuous AC output	1,800 W
Surge (peak) output	3,600 W
Boost mode	None listed
AC voltage	120V
AC outlets	3
USB-C ports	2 (up to 100 W)
USB-A ports	1
12 V car outlet	Yes
Max solar input	800 W (400 W per input)
Solar voltage range	16–60 V
Solar max current	12 A
Max AC charging power	1,600 W
AC charging time (maker claim)	~1.5 hr full charge (AC)
Expandable	No
UPS / EPS switchover What this means	20 ms
Cycle life What this means	4,000 cycles (to 70%)
Weight	38.6 lb
Warranty	5 years

Notes: Cycles to 70%. IP65. Holds 2000W up to 15 min; 3600W peak 5 s; 1000W max at 5–14°F. 2 PV inputs 400W each. AC input 1600W±50W (FAQ). 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 1500 Ultra run a refrigerator?

About 23 hours for a typical ENERGY STAR full-size fridge averaging 58 W, assuming 85% inverter efficiency. Older or larger fridges use more. Try your own numbers.

Can the Jackery Explorer 1500 Ultra run a microwave?

Yes. A typical 1,000 W microwave pulls about 1,500 W from the outlet, within its 1,800 W continuous output. A full battery gives about 52 min of cooking.

How many amp-hours is the Jackery Explorer 1500 Ultra?

The Jackery Explorer 1500 Ultra works out to about 128 Ah at 12 V, or 120 Ah at 12.8 V, the nominal voltage of a 12 V LiFePO4 battery. Both are our conversion of Jackery's 1,536 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 as much as 1.2 of them. How we convert amp-hours.

How long does the Jackery Explorer 1500 Ultra take to charge?

Jackery's published charging claim: “~1.5 hr full charge (AC)”. Max AC charging power is 1,600 W. With solar, it accepts up to 800 W (400 W per input). With 800 W of panels that's roughly 2.6 hours of good sun from empty.

Is the Jackery Explorer 1500 Ultra expandable?

No. Its capacity is fixed at 1,536 Wh.

Does the Jackery Explorer 1500 Ultra 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.