How to Choose a Portable Generator in 2026

Portable generators mostly look like variations on the same metal box, and the wattage number stamped on the side rarely tells the whole story. Five published specs actually explain how one unit behaves differently from another: rated watts, starting watts, runtime at a given load, noise level, and weight. This guide walks through what each one physically changes, then lines up three models so you can check the numbers against your own situation.

Rated vs. starting watts: the number that actually limits what you can plug in

Every generator publishes two wattage figures, and they measure different things. Rated (or running) watts is what the unit can sustain continuously — the number that matters for anything you’ll run for hours, like a fridge or a string of lights. Starting (or surge) watts is a short burst, usually a few seconds, that covers the initial draw when a motor-driven appliance kicks on. A fridge compressor can pull two to three times its running wattage for that first instant, which is why the surge number is higher on every model here.

If you’re adding up what you plan to run at once, use the rated figure for the total and check the surge figure only against whichever single item has the largest starting draw.

Runtime at a stated load: what “hours per tank” really tells you

Runtime figures are only comparable when the load percentage is the same, and manufacturers don’t all publish one. Westinghouse and Honda both state a runtime at 25% (quarter) load, which puts their numbers on the same footing. Honda goes further and also publishes a runtime at full rated load — useful because a generator running near its ceiling burns fuel much faster than one loafing at a quarter of capacity, and the gap between those two Honda figures shows how much that difference actually is.

Champion doesn’t publish a load-based runtime figure at all. That’s not evidence the unit runs shorter — it’s just a number you can’t compare on paper before buying.

Noise level: the dBA figure changes with how hard the engine is working

A generator idling at low load is measurably quieter than the same unit near its rated output, because the engine speed (and inverter units typically vary engine speed with load) rises to meet demand. Honda’s spec sheet reflects this directly with two dBA figures — one at rated load, one at quarter load — a nine-decibel spread between them. Westinghouse publishes a single 52 dBA figure with no load level or measurement distance stated, and Champion doesn’t publish a decibel rating at all.

Decibels are logarithmic, so a small-looking number difference is a bigger real-world difference than it appears — worth keeping in mind if you’re checking a figure against a posted campground or neighborhood limit.

Weight: the portability trade-off that doesn’t show up in the watt numbers

All three units land in a fairly narrow 38–48 lb band, which is normal for inverter generators in this power class — they trade a heavier engine for quieter, cleaner output compared to older non-inverter designs. The 8-9 lb spread between the lightest and heaviest here is small next to the watt difference, but it’s the number that matters if you’re carrying the unit any real distance from a vehicle to a campsite or a job site.

Matching the specs to your setup

• You’re running one or two specific appliances — total their rated watts first, then check the single highest starting-watt draw among them against the generator’s surge figure.
• You need to plan how long it lasts unattended — the runtime-at-load figure is the spec to check, and only compare it against another model’s runtime stated at the same load percentage.
• Noise near neighbors or a campground limit matters — look for a dBA figure with a stated load level, and remember load-level noise varies more than the single number suggests.
• You’re carrying it any distance — weight is the deciding spec, and the difference between models here is smaller than the price difference implies.

Frequently asked questions

Is it safe to run a portable generator during a power outage at home?

Only outdoors, and well away from windows, doors, and vents — portable generators produce carbon monoxide, which can build up indoors or in an attached garage even with doors open. This isn’t a spec-sheet question at all; it’s a placement and ventilation rule that applies regardless of which model you choose.

Why do generators list two different wattage numbers instead of one?

Because a motor-driven appliance draws far more power for an instant at startup than it does once running, and manufacturers publish both figures so you can check total continuous load against rated watts and peak single-item draw against starting watts separately.

What can actually run on a roughly 2,000-watt generator?

Rated watts in the 1,700-1,800 W range typically covers a refrigerator, several lights, and a phone or laptop charger running together, though the exact mix depends on each appliance’s own rated draw — check the wattage label on the specific items you plan to power rather than assuming from the category.