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Gorilla Power 3500W Inverter Suitcase Generator - GP3500i – Powerful & Fuel Efficient
£499.00 Inc VAT
[£415.83 Ex VAT]
FULL DESCRIPTION

Gorilla Power GP3500i — 3500W Inverter Suitcase Generator
Compact muscle, clean power. With 3500W max / 3000W running and true sine-wave output, GP3500i is ideal for home backup, site tools, and sensitive electronics. Up to 14 hours runtime at ¼ load from a 6 L tank, and a low ~63 dB sound profile at 7 m.
🔎 Where This Model Sits in the Gorilla Power Range
From ultra-portable inverters to large dual-fuel & diesel sets — this GP3500i is a mid-portable inverter with higher headroom.
💡 Key Features
- 3500W max / 3000W running — more headroom for tools & appliances.
- True sine-wave inverter — safe for laptops, TVs & sensitive kit.
- Fuel efficient — up to 14 hours at ¼ load (6 L tank).
- Quiet operation — ~63 dB @ 7 m.
- Manual recoil start, parallel-ready, low-oil protection.
Great for fridges, microwaves, heaters (1–1.5 kW), welders/hand tools (check start surges).
🔌 Sockets & Inputs — Front Panel at a Glance
Standard UK outlets for appliances & tools.
Charge devices; panel includes 12V auxiliary output.
Dedicated 5 V round port for low-voltage accessories.
Link two GP3500i units for extra wattage.
Added safety & compliance.
⚡ Running vs. Starting Watts — Know the Difference
Typical values — always check your device’s label. If your largest starting surge approaches 3500W, avoid running other heavy loads simultaneously.
📐 What Size Generator Do I Need?
| Item | Typical Running | Typical Starting | GP3500i? |
|---|---|---|---|
| Laptop + Phone Charging | 100–200W | ≈ Same | ✅ Easy |
| LED TV + Router + Lights | 150–250W | ≈ Same | ✅ Easy |
| Fridge-Freezer | 120–200W | 800–1200W | ✅ Yes |
| String Trimmer | 300–350W | 700–875W | ✅ Yes |
| Hedge Trimmer | 400–450W | 900–1200W | ✅ Yes |
| Drill | 500–600W | 800–900W | ✅ Yes |
| Hand Sander | 500–600W | 900–1200W | ✅ Yes |
| Paint Sprayer | 500–600W | ≈ 600W | ✅ Yes |
| Work Light (LED/Halogen) | 300–1000W | ≈ Same | ✅ Check total |
| Sump Pump (½ HP) | 700–800W | 1200–1300W | ✅ Yes |
| Microwave | 800–1200W | ≈ Same | ✅ Yes (solo heavy) |
| Small Heater (fan) | 1000–1500W | ≈ Same | ✅ Yes (watch total) |
| Pressure Washer (small electric) | 1000–1200W | 1800–2400W | ✅ Usually OK |
| Circular Saw (7¼") | 1200–1800W | 1800–2400W | ✅ Usually OK |
| Air Compressor (small) | 1400–1600W | 3500–4500W | ⚠️ Start can exceed |
| Water Heater (electric) | 3000–4000W | ≈ Same | ❌ Needs larger unit |
Guide only — add up running watts for items used together, then ensure the single highest starting surge stays within generator limits.
📊 Technical Specifications
| Maximum Watts | 3500W |
| Running Watts | 3000W |
| Fuel Type | Petrol |
| Runtime | Up to 14 hours (¼ load) |
| Noise (7 m) | Approx. 63 dB |
| Weight | 21.5 kg |
| Fuel Tank | 6 L |
| Oil Capacity | 0.6 L |
| Starting System | Manual recoil |
| Frequency | 50 Hz |
🧠 Tips for Choosing the Right Generator
- Total your running watts for everything you’ll use together.
- Identify the largest starting surge and keep headroom.
- Protect electronics — inverters (like GP3500i) output clean power.
- Runtime matters — match tank size & Economy Mode to your day.
- Scalability — parallel capability gives upgrade flexibility.
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