Portable Inverter Generator, 3300i | With COsense 49ST/CSA
The Generac GP3300i inverter featuring advanced PowerRush™ technology delivers over 50 percent more starting capacity for your RV essentials and other motor-driven equipment—so you can do more with less.* The GP3300i features duplex outlets, a 30A twistlock outlet and USB ports for easy connection and quiet inverter power, perfect for outdoor activities in a compact and lightweight solution.
PowerRush™ Advanced Technology delivers over 50% more starting capacity allowing you to do more with less*.
TruePowerTM Technology provides clean, stable power ideal for sensitive electronics, tools and appliances
COsense® Technology: STOPS. ALERTS. SAVES. Powerful protection against hazardous carbon monoxide.
Easy to Carry compact & lightweight design with built-in handle makes transportation easy.
Quiet Inverter Power reduces sound emissions and provides optimal performance.
PowerDial™ Choke, Run, Off: three operation settings integrated into one simple-to-use dial.
Economy Mode automatically adjusts engine speeds to save fuel and reduce sound emissions
USB ports to charge mobile devices
Parallel Ready to connect two GP3300i inverter generators for twice the power. (Parallel kit sold separately.)
Generator Status Lights visual alerts when unit is low on oil, overloaded or ready to use.
*Increases electrical current upon demand; above rated output when starting electric motors.
Pairs well with
In stock! Ships within 1-2 business days.
90-day risk-free trial
2-Year Warranty
Complimentary shipping & returns
Portable Inverter Generator, 3300i | With COsense 49ST/CSA
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Home Energy, Reimagined
From Standby Generators that power your home during outages, to Portable Solutions built for flexibility, to Smart Batteries like Tesla and Lion Energy, and Accessories that complete your setup — our collections bring you energy independence, reliability, and innovation.
FAQs
Please read our FAQs page to find out more.
What’s the difference between a standby generator and a portable generator?
A standby generator is permanently installed outside your home and automatically powers your entire house during an outage. Portable generators are smaller, movable, and best for running essentials or outdoor needs.
How do I choose the right generator size?
Start by calculating the wattage of the appliances you want powered. Smaller homes may need 10–14 kW, while larger homes often require 18–26 kW or higher. Portable units range from 2,500–18,000 watts.
Do generators need professional installation?
Standby generators require professional installation with a transfer switch for safety and compliance. Portable generators typically do not — they can be set up manually with extension cords or an inlet box.
What fuel options are available?
Most standby generators run on natural gas or liquid propane. Portable units are available in gasoline, dual-fuel (gas/LP), tri-fuel (gas/LP/natural gas), and diesel.
Do Generac generators come with warranties?
Yes — Generac offers a 5-year limited warranty on residential standby models, with extended options available. Portable models also include manufacturer warranties.
How do I choose the right generator size?
Start by calculating the wattage of the appliances you want powered. Smaller homes may need 10–14 kW, while larger homes often require 18–26 kW or higher. Portable units range from 2,500–18,000 watts.
What’s the benefit of a home battery system?
Home batteries store solar or grid power for backup use, reduce reliance on the grid, and can help lower energy bills by shifting usage to off-peak times.
Can Mango Power and Lion Energy batteries power my whole home?
Yes. Mango Power systems offer whole-home backup with modular expansion. Lion Energy’s batteries are stackable, making them ideal for growing energy needs.
Do batteries work without solar?
Yes. While batteries integrate perfectly with solar, they can also charge directly from the grid to provide backup during outages.
What warranties do home batteries include?
Tesla, Mango Power, and Lion Energy all offer 10-year limited warranties, ensuring long-term performance.