Every check passes. What this page will not do is turn a nameplate watt-hour rating into hours — see the evidence below for why.
Derived from official coefficients + Derived by WattPair · verified 2026-08-01 · US 120 V unit × sump pump
Usable capacity829.4 Wh
Surge headroom1.4×
Running720 Wof1,800 Wcontinuous output
Start-up2,645 Wof3,600 Wsurge ceiling
0 – 3,600 W across the rails above
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. What it will not do is print a runtime, and the reason is specific: the calculation is missing an input, and nothing is estimated to fill the gap.
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.
Energy rate instead of a runtime
720 Wh per hourwhile it is actually running
No runtime in hours here: we do not hold a duty cycle for this load, and nothing is estimated to fill the gap.
What a sump pump demands
Running power720 W Official spec · verified 2026-08-08 · medium confidence
Start-up demand2,645 W Official spec · verified 2026-08-01 · high confidence
The engine checked 2,645 W — where a record publishes both an absolute inrush and a multiple of running power, the more demanding of the two is used rather than the flattering one.
Start-up duration500 ms Official spec · verified 2026-08-01 · low confidence
Power factor0.69 Derived from official coefficients · verified 2026-08-08 · medium confidence
The inverter is loaded to 1,043 VA — 720 W ÷ 0.69 — which is the quantity its ceiling is actually measured against.
The start-up figure is the manufacturer’s own locked-rotor rating, off a spec sheet for a real model in this class — not a category multiple. Where a standards table and the nameplate disagree, this library uses the nameplate: the standards figure is a selection envelope for breakers and controllers, and sizing a battery to it over-specifies the machine by two to four times.
What the BLUETTI Elite 100 V2 offers
Continuous output1,800 W Official spec · verified 2026-08-01 · high confidence
Surge ceiling3,600 W Official spec · verified 2026-08-01 · high confidence
Usable capacity829.4 Wh Derived from official coefficients · verified 2026-08-01 · medium confidence
The arithmetic:1,024 Wh nameplate × 90% depth of discharge × 90% inverter efficiency = 829.4 Wh
BLUETTI publishes the coefficients but not this figure, so it is computed rather than copied.
Inverter waveformPure sine wave Official spec · verified 2026-08-01 · high confidence
Inverter efficiency90% Official spec · verified 2026-08-01 · medium confidence
Idle draw10 W Official spec · verified 2026-08-01 · medium confidence
What the machine consumes just being switched on. It sits in the runtime denominator alongside the load.
Yes. 720 W of running draw against 1,800 W of continuous output — 40% of it, with 2,645 W demanded at start-up against a 3,600 W ceiling. The verdict is computed from running watts, start-up inrush, and inverter waveform — the working is in the evidence section above.
How long will a BLUETTI Elite 100 V2 run a sump pump?
Not on this pairing. Both sides of the division are permitted here — this machine publishes what a usable-capacity figure needs — but the calculation is still short of an input, and this site does not estimate one to close a gap. The energy rate above needs no battery figure at all and is the number to size against in the meantime.
Can a BLUETTI Elite 100 V2 run a sump pump 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 720 W of the 1,800 W available, leaving 1,080 W before the 82% line matters, and the start-up headroom is 1.4× — the part people forget, because two motors starting together is a different question from two motors running together. The runtime calculator linked below takes a list of loads rather than one.