P1 3800W / 3.8kW Portable Petrol Inverter Generator, Push-button Start, Built-in Wheel Kit, DC & USB Outputs| P4000i

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£769.99 inc. VAT
£641.66 ex. VAT
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Orders to be received within 1 - 5 working days. There may be a slight delay in courier tracking becoming available. Postcode exclusions apply.

4 months at 0% interest, Click for more info

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P1 3800W Portable Petrol Inverter Generator

The P4000i is a compact and portable inverter generator from P1, powered by a robust and powerful IC225D engine.

Budget-Friendly Power

Providing a convenient and cost-effective source of power, this quiet inverter generator has an impressive maximum output of 3800w / 3.8kW, and continuous power rating of 3500w / 3.5kW.

Power Source For Caravans, Motorhomes and Horse Boxes

As this inverter generator is so quiet and compact, it's ideal for use whilst staying in a large caravan or motorhome, or for use with a horse lorry, allowing you to take both modern luxuries and home comforts with you wherever you go.

Easy-Start Inverter Generator

With its powerful 225cc 4-stroke easy-start recoil petrol engine, the P4000i is able to produce up to 3800w / 3.8kW and is more than capable of powering televisions, heaters, air pumps for inflatable beds, laptops, phone chargers, lights, power tools, etc.

Generator Sockets

The control panel features two 230v sockets for use with any appliances which use a standard 3-pin 13A UK mains plug, as well as a 12v 5 amp outlet and USB port, allowing you to power multiple things at the same time, such as a fridge, a kettle and phone charger.

Compact and Lightweight Design

Fitted with a robust inverter board that can handle extreme inductive loads applied when using power tools with high start-up currents, this inverter generator weighs just 48kg so can be easily stored in the back of your car, van or garage. Its folding front handle, moulded rear handle and heavy-duty rear wheels also makes transportation easy across a variety of surfaces.

Low-Noise Technology

Using the latest low-noise engine technology, the P4000i produces only 58 dBA @ 7m to minimise any distruptions or disturbances to your friends and family, as well as others near you on a caravan site.

Easy To Use

This inverter generator is really easy to use, making it extremely popular for powering family holidays, and it’s also built with low maintenance requirements for cost-effective, fuss-free power whilst away from home.

ECO Mode

Already an economical generator, the P4000i also has the added benefit of an 'ECO' mode which, when selected, will lower the engine revs to match only the load being applied, which in turn increases the fuel economy, lowers the noise produced and extends the lifespan of the engine.

LCD Display

The P4000i features a full LCD display - which shows the voltage, frequency and hour count - making it easy to monitor how your generator is performing at a glance.

Use With TVs & Laptops

Able to produce a pure sinewave output, this means that this petrol generator can safely power all sensitive electronics, such as TVs, laptops, etc, without the risk of damaging or overloading them.

Safety Features

Digital overload protection will shut the generator down if devices exceeding 3.8kW start-up or 3.6kW continuous output are plugged into the generator. It also features low oil shutdown which turns off the generator should the oil levels drop too far.

2 Year Warranty

This 3.8kW Inverter Generator is covered by P1's 2 year warranty.

Inverter Generator Use

Please note that inverter generators are specially designed for leisure use - for weekend getaways, holidays or emergency standby use. These generators are not suitable for continuous daily use or as an off-grid power supply.

For heavy-duty commercial use, we recommend a conventional 3000rpm petrol generator.

Generator Safety

Petrol generators must never be used inside due to risk of carbon monoxide poisioning. Please ensure you are fully aware of the danger of operating a generator. To visit our safety page, click here.


Model P4000i
Start Method Electric Start
Maximum Output (kW/w) 3.8/3800
Continuous Output (kW/w) 3.6/3600
Run Time @ 50% load (hours) 12
Voltage Regulation Method Alternator Voltage Regulation
Phase Single
Voltage 230
Connection Method(s) AC 230V, 12V DC 8A, 5V DC 2.1A/1A USB
Rated Speed (RPM) 3600
Frequency (Hz) 50
Max/Continuous Current (Amps) 15
Power Factor (Cosφ) 1
Engine Model IC225D
Engine Type 4-Stroke Air-Cooled
Engine Size (cc) 225
Power Output (hp) 5.17
Fuel Petrol
Fuel Capacity (L) 12
Engine Oil 10w40 / 15w40
Engine Oil Capacity (ml) 600
No. of Cylinders 1
Features Low Oil Shutdown
Casing Closed
Noise Level db (A) @ 7m 58
Wheel Kit? Yes
Gross Weight (kg) 54
Net Weight (kg) 48
Fully Assembled Dimensions (H x W x L) (mm) 550 x 400 x 610
Package Dimensions (H x W x L) (mm) 720 x 580 x 655
Fuel/Power Source Petrol
Product Type Inverter Generator
Warranty (years) 2
Commercial Warranty (years) 1
Model EAN 600231976558
In The Box P4000i Inverter Generator, Remote Key Fob, Spark Plug Spanner, Oil Filler Jug, Engine Oil (15w40 / 10w40)

2 Reviews Hide Reviews Show Reviews

  • 5
    Awesome generator

    Posted by Mike H on 19th Mar 2021

    Just received new P1 4kw generator. Absolutely brilliant bit if kit. Used bog std open frame gens until now and it’s it’s like chalk and cheese in comparison. You just fill with supplied oil 600ml and using screw in oil filler neck so no mess. Add fuel and the supplied fuel stabiliser so fuel doesn’t stagnate if gen not used often. Connect the battery plug turn on and press start. It’s that easy. Started on first press of starter and every time after. Oh and telescopic handle is brilliant too Highly recommended you won’t be disappointed with this purchase

  • 5
    P400i inverter generator

    Posted by MD Bromsgrove on 30th Dec 2020

    Very good quality generator with many features not included on other sets. The most impressive feature is the quietness, at 53db it is incredibly quiet. You can have a conversation with the generator running without having to raise your voice! Secondly it is very fuel efficient, with the added feature of an accurate readout of time left according to fuel and load. Expensive compared to other options, but worth it.

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