How Long Will It Run

How long will a Jackery Explorer 1000 Plus run a gas combi boiler?

About 15 hours — 14 h 49 min typically, from 13 h 56 min in the worst case to 15 h 41 min at best. That assumes a gas combi boiler pulling 85 W for 60% of the time (average 51 W), plus the station's 11 W AC mains socket overhead — 62 W in total out of 919 usable watt-hours.

The gas makes the heat, so a battery only has to run the fan, pump and controls. Most boilers are wired into a fused spur rather than a plug, and some will not light on a station’s ungrounded output — read the boiler guide before relying on it.

Before you rely on it

The battery is the easy part. Most boilers are wired into a fused spur with no plug, and some will not light on a station's floating output because they sense the flame through earth. The boiler guide explains both problems and who can fix them.

The numbers

Jackery Explorer 1000 Plus · 1,264 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × gas combi boiler, UK 230 V62 W13 h 56 min14 h 49 min15 h 41 min
2 × gas combi boiler, UK 230 V113 W7 h 39 min8 h 8 min8 h 37 min
1 × gas combi boiler, US 120 V62 W13 h 56 min14 h 49 min15 h 41 min
  • 1.9 nights of eight hours, or 0.62 days of continuous running.
  • Usable energy: 919 Wh of the 1,264 Wh on the box, after chemistry, inverter losses and the reserve.
  • To keep it going for a full 24 hours you would need about 2,048 Wh of rated capacity — 1.6× this station.
  • Start-up: the gas combi boiler asks for 85 W at switch-on against this station's 4,000 W peak — comfortable.

Buy the Jackery Explorer 1000 Plus

Where to buy

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If this is for a power cut

Heating is what a battery does worst. In a power cut, warming people rather than rooms goes much further, and none of this needs a socket.

Without a power station: a 20,000 mAh power bank runs a USB heated throw for about 7 h 24 min. See the power bank numbers.

Hot water bottle and a vacuum flask. Boil water while you still can, keep it hot in a flask, and refill the bottle through the night.

Look for: A bottle made to BS 1970 in the UK, and a flask of a litre or more.

Hand warmers. Air-activated packs give hours of heat with no power at all, and a pocketful helps children and older relatives.

Look for: Long-duration packs, and the expiry date on bulk boxes.

Battery carbon monoxide alarm. Anything burning fuel indoors, a boiler relit after an outage included, can produce carbon monoxide you cannot see or smell.

Look for: A sealed long-life battery and EN 50291 certification in the UK (UL 2034 in the US).

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More: How to keep warm in a power cut, and the power cut essentials list (US edition).

What changes the answer

If instead…Typical runtimeChange
The pack is two years old13 h 38 min-8%
The pack is five years old11 h 51 min-20%
It is −10 °C outside12 h 35 min-15%
You run it flat, no reserve16 h 28 min+11%
You keep 20% back13 h 10 min-11%

If you need it to run longer

These run a gas combi boiler for at least twice as long as the Jackery Explorer 1000 Plus does, cheapest first.

StationWhTypicalIndicative price
Bluetti Apex 3002,76429 h 59 min£1,799 / $1,699
Anker SOLIX F30003,07233 h 19 min£1,899 / $1,999
Bluetti AC300 + B3003,07232 h 22 min£2,499 / $2,699
EcoFlow DELTA Pro3,60037 h 55 min£2,499 / $2,699

The cheapest step up: Bluetti Apex 300

Amazon and approved-programme links are affiliate links; the site may earn a commission at no extra cost to you. Links marked “official site” are untracked. Prices and stock change constantly — check before you buy.

Smaller options that still work

StationWhTypicalWeightIndicative price
Bluetti AC1801,15213 h 17 min16 kg£749 / $499
ALLPOWERS R15001,15213 h 17 min16.7 kg£699 / $539
Jackery Explorer 1000 v21,07012 h 45 min10.8 kg£419 / $549
Anker SOLIX C10001,05612 h 23 min12.9 kg£699 / $799