Gorilla Power 3500W Inverter Suitcase Generator - GP3500i – Powerful & Fuel Efficient

The Gorilla Power GP3500i Inverter Generator delivers the perfect balance of portability and power, making it ideal for home backup, camping, caravanning, mobile businesses and professional trade use. Producing 3500W maximum output and 3000W continuous running power, the GP3500i provides ample headroom for larger appliances, power tools and sensitive electronics.

Featuring advanced True Sine Wave Inverter Technology, the GP3500i generates clean, stable electricity that is safe for laptops, televisions, routers, battery chargers and modern electronic equipment. The efficient petrol engine and 6-litre fuel tank provide up to 14 hours runtime at 25% load, while the compact suitcase-style design makes transportation simple.

With low operating noise of approximately 63dB at 7 metres, Economy Mode, low oil protection and parallel capability, the GP3500i is one of the most versatile inverter generators in the Gorilla Power range.

 

Key Features

• 3500W maximum output power
• 3000W continuous running power
• True sine wave inverter technology
• Safe for sensitive electronics
• Up to 14 hours runtime
• Economy Mode for improved fuel efficiency
• Parallel-ready for increased output
• Low oil shutdown protection
• Quiet operation at approximately 63dB
• USB charging outputs
• 12V auxiliary output
• Compact suitcase-style design
• Ideal for home backup and mobile power applications

 

 

Technical Specifications

Specification	Details
Maximum Output	3500W
Running Output	3000W
Fuel Type	Petrol
Starting System	Manual Recoil
Fuel Tank Capacity	6 Litres
Oil Capacity	0.6 Litres
Runtime	Up to 14 Hours @ 25% Load
Frequency	50Hz
Noise Level	Approx. 63dB @ 7m
Weight	21.5kg
Parallel Ready	Yes
Inverter Type	True Sine Wave

 

 

Power Output Guide

The GP3500i offers increased output capacity over smaller inverter generators, making it suitable for a wider range of appliances, power tools and backup power applications.

Equipment	Typical Running Power	Typical Starting Power	GP3500i Suitability
Laptop & Phone Charging	100-200W	Approx. Same	Suitable
LED TV, Router & Lighting	150-250W	Approx. Same	Suitable
Fridge Freezer	120-200W	800-1200W	Suitable
String Trimmer	300-350W	700-875W	Suitable
Hedge Trimmer	400-450W	900-1200W	Suitable
Drill	500-600W	800-900W	Suitable
Hand Sander	500-600W	900-1200W	Suitable
Paint Sprayer	500-600W	Approx. 600W	Suitable
Work Light	300-1000W	Approx. Same	Check Total Load
Sump Pump (1/2 HP)	700-800W	1200-1300W	Suitable
Microwave	800-1200W	Approx. Same	Suitable
Small Fan Heater	1000-1500W	Approx. Same	Suitable
Small Electric Pressure Washer	1000-1200W	1800-2400W	Usually Suitable
Circular Saw (7¼")	1200-1800W	1800-2400W	Usually Suitable
Small Air Compressor	1400-1600W	3500-4500W	Check Starting Load
Electric Water Heater	3000-4000W	Approx. Same	Not Suitable

Guide Only: Add together the running watts of all devices being used simultaneously and ensure the highest starting surge remains within the generator's maximum output capacity.

 

 

Sockets & Connections

• 2 x 240V UK 3-Pin AC Sockets
• USB Charging Outputs
• 12V DC Auxiliary Output (5A)
• Dedicated 5V Auxiliary Output
• Parallel Connection Ports
• Grounding Terminal
• Status Indicator Lights

 

 

Why Choose the GP3500i?

The GP3500i sits perfectly between compact inverter generators and larger site generators. It offers significantly more power than entry-level inverter models while remaining lightweight, portable and fuel-efficient.

Its combination of long runtime, clean power output and low noise levels makes it a superb choice for homeowners, campers, mobile businesses and tradespeople requiring dependable portable power.

 

 

Ideal Applications

• Home emergency backup power
• Camping and caravanning
• Mobile detailing and valeting businesses
• Food vans and catering units
• Construction and trade work
• Garden and landscaping equipment
• Outdoor events and festivals
• Remote working locations
• Workshop and garage use

 

 

HQ Suggests (Tips & Insights)

• 💡 The GP3500i is an excellent choice for users wanting more power than a 2kW inverter generator without stepping into larger heavy-duty units.
• 💡 Ideal for running fridges, lighting, routers and essential appliances during power outages.
• 💡 True sine wave technology makes it safe for sensitive electronics and modern appliances.
• 💡 Economy Mode can significantly increase fuel efficiency during lighter load operation.
• 💡 Parallel capability allows future expansion if your power requirements increase.

 

 

Why Buy From The Drivers HQ?

The Gorilla Power GP3500i is available from our Derbyshire showroom, where our team can help you choose the right generator for home backup, business, camping or trade use. We offer expert advice, competitive pricing and fast UK-wide delivery across the complete Gorilla Power generator range.