How long will a Jackery Explorer 300 Plus run a router + modem? (US 120 V)
Yes, it runs it 11 h
Includes this load’s 100% duty cycle and the station’s 12 W idle draw — not a label-wattage guess.
Derived from official coefficients + Derived by WattPair · verified 2026-08-09 · US 120 V unit × router + modem
Usable capacity230.4 Wh
Surge headroom10×+
Running9.1 Wof300 Wcontinuous output
0 – 300 W across the rails above
No start-up rail: this load has no locked rotor to publish an inrush for, so no start-up demand was checked.
Two numbers decide this, and readers use them interchangeably: watts are the ceiling on what the inverter holds at any instant, watt-hours are how much energy the battery holds. A machine can have plenty of one and not enough of the other.
The verdict is a calculation, not a lookup; the hours are a division, not the nameplate watt-hours. The working is in the evidence below.
Where those numbers come from
A blank is never left blank. A field we have found no figure for says so, and a field whose
sources disagree — two documents, or one document with itself — says that instead of picking
one.
What a router + modem demands
Running power9.1 W Official spec · verified 2026-08-01 · high confidence
Start-up duration50 ms Official spec · verified 2026-08-01 · low confidence
Duty cycle100% Official spec · verified 2026-08-01 · high confidence
What the Jackery Explorer 300 Plus offers
Continuous output300 W Official spec · verified 2026-08-01 · high confidence
Surge ceiling600 W Official spec · verified 2026-08-01 · high confidence
Usable capacity230.4 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 coefficients but not this figure, so it is computed rather than copied.
Inverter waveformPure sine wave Official spec · verified 2026-08-08 · high confidence
Idle draw12 W Official spec · verified 2026-08-08 · medium confidence
What the machine consumes just being switched on. It sits in the runtime denominator alongside the load.
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.
BLUETTI Elite 30 V2 (US 120 V) reaches the same conclusion on a router + modem at 600 W continuous, and it is $239. Cheaper is only cheaper when the answer is the same — this one is. See that pairing →
The same load on the machines beside it
The same machine on the loads beside it
Where to go next
From the Knowledge channel
A router + modem has a dedicated guide: the same records this page computes from, worked through in prose with room for the reasoning a table can only summarise — How do you keep the internet on during a power outage?
Questions people ask about this pairing
Will a Jackery Explorer 300 Plus run a router + modem?
Yes. 9.1 W of running draw against 300 W of continuous output — 3.0% of it. The verdict is computed from running watts, and inverter waveform — the working is in the evidence section above.
How long will a Jackery Explorer 300 Plus run a router + modem?
About 11 hours on a full charge. That divides a usable-capacity figure derived from Jackery's own published usable-capacity coefficient by this load's duty-weighted draw plus the machine's own 12 W idle draw — not the nameplate watt-hours divided by a label wattage, which is where the confident-looking 20–35% overstatements come from.
Can a Jackery Explorer 300 Plus run a router + modem and something else at the same time?
That depends on the something else, and the two numbers to check are on this page. This load takes 9.1 W of the 300 W available, leaving 291 W before the 82% line matters. The runtime calculator linked below takes a list of loads rather than one.
Runs it · 11 h Jackery Explorer 300 Plus · from $299.99