Amerisun 2500W Ultra-Quiet Inverter Generator

$241.99

In Stock

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Is this the right one for you? Read the quick guide below ↓

30-day returns and damage protection Return most items within 30 days. If your order arrives damaged, we will replace it or refund you. Free return pickup on bulky and heavy items.

Product details

2-Year GridGuardPlus Warranty included. Every item we sell is backed by our two-year warranty. Questions? Call 1-800-680-4080.

Amerisun's 2500W inverter generator is built for quiet operation (53dBA) and long runtime (10.5 hours) at a lightweight 40.3 lbs. It is a practical choice for camping and light backup where noise and portability matter.

Gas generators deliver a lot of power for the price and can run as long as you have fuel. The trade-offs are fuel storage, regular maintenance and outdoor-only operation, so they suit people who want maximum output for outages, job sites and RV use.

Key specs

2500W starting / 1900W running output
Ultra-quiet 53dBA operation
10.5-hour runtime
Lightweight at 40.3 lbs

Best for

Camping and tailgating
Light backup power
Noise-sensitive settings

What a generator this size can typically power

Examples only, as long as the combined running watts plus the highest starting surge stay within the generator's rating. Always check the label on your own appliances.

Phone and laptop chargers, lights and a TV
A modern refrigerator (check its start-up surge)
A microwave of about 700W or less
A small fan

Good to know

Starting (peak) watts are only available for a few seconds when a motor or compressor kicks on; running (rated) watts are what the generator can supply continuously. Add up the running watts of everything you plan to power and allow for the extra starting watts of motorized appliances. Safety: run any fuel-burning generator outdoors, well away from doors, windows and vents, and never in a garage or enclosed space, because exhaust contains carbon monoxide. Do not connect a generator to household wiring unless a licensed electrician has installed a proper transfer switch. Read the manufacturer's manual before first use.

Setup and care

Read the manual and check oil and fuel before every start
Place on level ground outdoors with plenty of airflow
Let it cool before refueling and store fuel in approved containers
Keep a working carbon monoxide alarm inside your home

Frequently asked questions

Can I run it in my garage or near a window?
No. Run it outdoors and well away from doors, windows and vents. Exhaust contains carbon monoxide, which can be deadly.

What fuel and oil does it use?
Use the fuel type and oil grade listed in the manufacturer's manual. Never run it past empty or refuel while it is running or hot.

Can I power my whole house?
Not directly. Connecting to household wiring requires a licensed electrician to install a proper transfer switch, and the load must stay within the running watts.

How do I look after it?
Follow the maintenance schedule in the manual, run it briefly every month or two, and do not leave old fuel in the tank for long storage.

Buy with confidence from GridGuardPlus

2-year GridGuardPlus warranty on every item
Free return pickup on bulky or heavy items
Damage guarantee: if it arrives damaged we replace or refund it, with no photo-proof fight
30-day returns
Real people on the phone: 1-800-680-4080, 875 Industrial Hwy, Unit 8, Cinnaminson, NJ 08077

Compare other power options

Explore our battery power station options as an alternative for compatible smaller devices. Battery stations differ from gasoline generators in power output and runtime. Never operate a gasoline generator indoors or in an enclosed space.

WHAT THIS GENERATOR IS FOR

The quiet one: 53 dBA in a 40-pound frame

Noise decides whether you can use your generator at a campground, on a quiet street or while someone sleeps nearby. The Amerisun 2500W is rated at 53 dBA, quieter than many conversations, and weighs only 40.3 lbs, with a rated runtime of 10.5 hours. Running output is 1,900W, enough for a refrigerator, lights, a TV and a laptop.

Right for you if…

Noise is your top concern, at campsites, in neighborhoods or for nearby sleepers
You want a lightweight generator you can lift and carry
You want light backup for a refrigerator, lights and electronics

Look at something else if…

You need to run a sump pump and fridge together plus other loads
You want a bigger unit for whole-house backup

A typical essentials-only load

Modern refrigerator200 W
Laptop and Wi-Fi router100 W
LED lights50 W
TV100 W
Small fan50 W
Combined running load500 W

That is about 26% of this generator's 1900W running rating. Adding a microwave (700W) takes the load to 1200W, or 63%, which still leaves headroom.

Typical appliance figures, for illustration. Always check the label on your own equipment, and remember that motors and compressors briefly draw more when they start.

Good to know about this one

Decibel ratings are measured at a set distance and load, so a real-world generator under heavy load will be louder than the headline number. Check the test conditions, and place the generator as far away as your cord allows.

Plan before you need it

Outages and road-trip plans both have a deadline. A generator that is already unboxed, fueled and test-run is a backup plan; one that is still in transit is not. Ordering ahead of the forecast, not after it, keeps that decision in your hands.

If this is not quite the right fit

Not sure this is the right size for you? Tell us what you want to power and for how long, and we will check it against this product before you order. Contact us or call 1-800-680-4080.