Briggs & Stratton Q6500 QuietPower
Inverter-quiet power at open-frame prices, sized for real home backup.
Specs
| Running watts | 5,000 W |
| Starting watts | 6,500 W |
| Type | Inverter |
| Fuel | Gasoline |
| Weight | 128 lb |
| Fuel tank | 5 gal |
| Runtime (mfr claim) | up to ~14 h at 25% load |
| Outlets | Four 20A 125V, L14-30R (transfer switch), USB |
| Start | Recoil |
| CO safety shutoff | Varies by version — check the listing |
| Typical street price | ~$1,000 (fluctuates — check listing) |
Figures are the manufacturer's published specs; dashes mean the maker doesn't publish a number. Verify against the current datasheet before you buy.
What can it actually run?
Checked with the same math as our calculator: total running watts, plus the single largest motor surge on top. “Tight” means it technically fits but the load sits above 80% of rated output — fine briefly, not where you want to live.
- ✓ runs itFridge, Wi-Fi, and lights730 W running · 2,230 W peak
- ✓ runs itStorm essentials (fridge, freezer, furnace fan, sump pump)3,080 W running · 4,630 W peak
- ✗ too muchEssentials plus a 10,000 BTU window AC4,280 W running · 6,680 W peak
- ✗ too muchMost of the house (well pump, central AC, laundry)13,680 W running · 19,680 W peak
The installer's take
The Q6500 is the odd one out in a good way: 5,000 running watts of clean inverter power in a shrouded, much-quieter-than-open-frame package, with an L14-30 outlet that feeds a transfer switch or interlock properly. If your must-run list includes a well pump or a big fridge plus a window AC, this is where the inverter class starts covering it without paying Honda EU7000iS money.
Pros
- Clean inverter power safe for electronics at 5 kW
- L14-30R 240V-capable outlet for transfer switches
- Far quieter than open-frame units of the same output
Cons
- 128 lb and bulky despite the suitcase styling
- Recoil start at a price where rivals give you a button