Rank #7 in Best Portable Generators 2026: 10 Ranked, Start vs Running Watts
AIVOLT 1800W Petrol Inverter Generator
Price and rating as shown on Amazon when we collected them. Both change.
The AIVOLT 1800W Petrol Inverter Generator sits at number 7 in our guide to portable generators. It is the smallest and lightest machine in that group at 15kg, it costs £295.99, and it holds a 4.3 rating from 96 ratings on Amazon.
The reason it earns a place here is the same reason the bigger machines do: the headline number is not the number you run on. The title and the bullets promise 1800W of starting power and 1700W continuous — a 100W gap, the narrowest in the guide. But the specification table underneath gives a third figure: the row labelled 'Starting Wattage' reads 1850W, while 'Output Wattage' and 'Engine Power Maximum' both read 1800W. That is three different starting figures inside one listing. The runtime claim has the same shape: the bullet says up to 8 hours from the 3-litre tank, then breaks that same tank down to about 7 hours at 25% load (450W), 5 hours at 50% (900W) and 3.4 hours at 75% (1350W).
Everything on this page is taken from the AIVOLT listing on Amazon. We have not run this generator, measured its output, timed its tank or listened to it.
How those 96 ratings break down
An average hides its own shape. This is the spread behind the 4.3 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £295.99 |
|---|---|
| Rating | 4.3 out of 5, from 96 ratings |
| Starting wattage (title and bullets) | 1800W |
| Starting wattage (spec table) | 1850W (as listed) |
| Running wattage | 1700W |
| Engine | 80cc 4-stroke OHV, air-cooled, 100% copper windings |
| Fuel tank and runtime | 3 litres; up to 8 hours claimed, with 7h / 5h / 3.4h given at 25% / 50% / 75% load |
| Weight and outlets | 15kg; 4 outlets (230V 3-pin socket, two USB ports, 12V DC outlet) |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Great jenny. use it to charge up 1700wh battery during the day for a quiet night camping.”
Verified purchase“Great piece of kit. Easily transportable. Ideally when off grid with a caravan or campervan. Decent power output.”
What it is up against
The rivals it was ranked against in Best Portable Generators 2026: 10 Ranked, Start vs Running Watts.
Questions people ask
How much power does the AIVOLT 1800W deliver continuously?
Both the bullet and the 'Running Wattage' row in the spec table state 1700W of continuous output.
So what is the starting wattage?
The title and bullets say 1800W. The spec table's own 'Starting Wattage' row says 1850W. The listing does not reconcile the two.
How long does it run on a full tank?
AIVOLT claims up to 8 hours from the 3-litre tank, and in the same bullet gives approximately 7 hours at 25% load (450W), 5 hours at 50% load (900W) and 3.4 hours at 75% load (1350W).
How heavy is the AIVOLT generator?
The listing states 15kg, with a handle described as labour-saving for carrying.
What can I plug into it?
The control panel is listed as carrying a standard 230V UK 3-pin socket, two USB charging ports (Type-A and Type-C) and a 12V DC outlet — four outlets in total.
How quiet is it, and what engine does it use?
The listing quotes 59 decibels at 25% load and describes an 80cc 4-stroke OHV air-cooled engine with under 3% THD on a pure sine wave output.
Comments
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