Battery Equivalents and Replacements

Best Portable 1000 Watt Power Generator

sportsman gen1000i w150pxPortable 1000 watt generators are a group of rather compact and lightweight power generators that are commonly used during blackouts, in emergencies, and in other off-the-grid applications for residential and commercial use.

Although sometimes underestimated due to their dimensions and limited power and other options, a properly maintained 1000 watt power generator can be a real life-saver in many situations.

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Intro to 1000 Watt Power Generators

As their name suggests, 1000 Watt power generators feature ~1000 Running Watts or Starting Watts, or at least very near this value.

The following comparison chart lists some of the most popular 1000W power generators, with their most important features and specifications:

Model Running Watts
Starting Watts
Runtime
Noise
Receptacles
Buffalo Tools Sportsman GEN1000i 800W
1000W
6.3h @50% 56 dB @23 ft AC: 120V 20A 5-20R
DC: 12V 4A
Coleman CM04101 900W
1000W
8h @50% 58 dB @23 ft AC: 120V 20A 5-20R
DC: 12V 10A
Firman P01001 1050W
1300W
9.0h @50% 62 dB @50%  AC: 120V 20A 5-20R
Generac 76711 GP1200i 1000W
1200W
5.5h @50% - AC: 2x 120V 20A 5-20R
DC: 5V USB (1.0A, 2.1A)
Honda EU1000i (EU1000T1AG) 900W
1000W
3.0h @100%
6.8h @25%
50 dB @100%
42 dB @25%
AC: 2x 120V 20A 5-20R
Mech Marvels MM2350 1200W
1500W
9h @50% 68 dB AC: 2x 120V 20A 5-20R
DC: 12V 8A
Powermate PM1200i 1000W
1200W
7h @25% - AC: 2x 120V 20A 5-20R
PowerSmart PS50A 900W
1000W
5h @50% 49 dB AC: 120V 20A 5-20R
Pulsar PG1202S 900W
1200W
8.5h @50% - AC: 2x 120V 20A 5-20R
DC: 12V 8A
Ryobi RYi1000 900W
1000W
8h @50% 65 dB AC: 120V 15A 5-15R
DC: 12V 7.5A
TogoPower GG1000 800W
1000W
6h @50% - AC: 120V 20A 5-20R
Yamaha EF1000iS 900W
1000W
11.9h @25% 47 dB AC: 2x 120V 15A 5-15R
DC: 12V 8A

Note: Amazon affiliate links (the 'Model' column) open in the new windows, feel free to check them for the most up-to-date offers and prices. Also, we have really tried to verify every single bit of information in this chart and article (and in the end - our website), but things change over time without prior notice.

Most of these units are powered by two-stroke or four-stroke internal combustion engines in the 40-80cc range, having a power output in the 1.3-2.5 HP range.

Regardless of how small their engines are, 1000 Watt power generators must be operated outside since their fumes contain very toxic Carbon Monoxide (CO) - although these units are relatively simple to use and maintain, when they arrive, be sure to thoroughly read the manual in order to get accustomed to your new power generator and be sure to keep the Owner's Guide near the power generator, just in case.

Dual-fuel 1000 watt power generators are rare since such installation requires additional space, which is quite limited. Also, dual-fuel power generators need additional propane bottles which increase the storage requirements.

However, propane as fuel is greener fuel than gasoline (gas), it burns better, and is much easier to store for a longer period of time.

In order to increase fuel efficiency, most of the units feature variable speed engines with intelligent output voltage controllers (inverters!) which provide smooth and stable voltage with very low Total Harmonic Distortions (THD), allowing such units to power even very sensitive equipment.

Due to their very small dimensions and limited output power, the number of output ports (receptacles) is somewhat limited, when compared with larger units. Most of the 1000W power generators have 1-2 120V 15A 5-15R or 120V 20A 5-20R receptacles, sometimes combined with 12V DC and/or USB charging ports.

generac control panel

Runtime on a single fuel tank varies depending on the actual load, engine type, controller type, and similar, and it ranges from 3-4 hours @50% load to 9+ hours @50% load.

Noise levels are rather acceptable thanks to the fact that the engine power of these units is rather limited and that most of these units feature enclosed frame construction, further limiting the noise. Anything below 50 dB @25% from 23 feet (7m) distance is good, but there are models with even much better results. And yes, such units do cost more, but when lightly loaded, just a few feet away it is sometimes hard to tell if they are working or not, especially with the city noise in the background.

Safety features mostly include overload protection and in four-stroke models, low-oil automatic engine shut off.

Some high-end models also feature Carbon Monoxide detectors that monitor the amount of Carbon Monoxide in the air around the power generator and if required, automatically shut off the engine.

Parallel Ready power generators allow the user to connect two exactly the same or at least compatible units in parallel in order to increase the output power and allow the user to power larger loads.


What Can 1000 Watt Power Generator Run

Power generators can run several devices, gadgets, tools, or appliances whose combined power doesn't exceed the output power of the power generator.

Since 1000W power generators mostly feature 800-1000 Running Watts, the number of devices and appliances is limited, but it includes:

- smartphone, tablet, laptop, and similar chargers,

- home LED lights,

- battery chargers up to 500-700 VA, sometimes more,

- various TVs combined with multimedia devices,

- smaller appliances like smaller coffee makers, smaller microwave ovens, newer refrigerators, etc,

- smaller electric tools, like drills or saws.

Note: single 1000W power generator can power one smaller appliance/tool and perhaps one smaller load - this all depends on the actual power requirement of the appliance/tool.

The only way to accurately check power requirements of any device/appliance/tool is to check the documentation of the potential load and to write it down - make a list of the most required tools and appliances during a blackout, calculate total power requirement, increase it for 15-20% for safety reasons and You will get the minimum required output power of your new power generator.

For more about this topic, feel free to check out our Boat, Camping, RV, and Household Appliances Wattage Charts article.


Power Stations vs Power Generators

baldr 330 power station mWhile power generators convert the chemical energy of the fossil fuel into electric energy using internal combustion engines, power stations convert the chemical energy of the lithium batteries directly into electrical energy, without releasing any fumes and dangerous gases. And they operate almost silently.

Also, power stations are much easier to maintain - recharge them every few months and they will do fine.

When their batteries are discharged, power stations can be recharged in few hours using solar panels, wall chargers, car chargers, and similar.

On the other hand, when power generators tanks are empty, they can be refilled within seconds.

Also, a power generator that can provide, for example, 400W for 8 hours is able to provide 3200Wh of energy.

On the other hand, power stations with 1000Wh or larger batteries tend to be more expensive.

So, which one is better, power station or power generator? Personally, power stations and power generators complement each other and in areas where blackouts are common, both power stations and power generators can come in very handy.


Best 1000 Watt Power Generators

Here is our list of top 1000W power generators, with their short reviews.

Although top units are far from being budget-friendly, they come with other features that put them where they are.

But, one doesn't have to spend a small fortune to have a reliable and durable power generator running when most needed.

So, choose according to your own needs and preferences.


Honda EU1000i (EU1000T1AG) Portable Inverter Generator

honda eu1000t1ag h300px

Honda EU1000i portable inverter generator comes in several versions, and one of the last ones is Honda EU1000T1AG portable inverter power generator which is powered by 49.5cc Honda GXH50 internal combustion engine featuring a manual recoil start system.

Honda EU1000T1AG features 900 Running Watts and 1000 Starting Watts, while its 0.55 gal (2.1 liters) fuel tank ensures runtime of 3.0h @100% load and 6.8h @25% load.

Eco-Throttle switch in certain situations may extend the runtime even more.

One of the very important features of Honda EU1000T1AG are noise levels - Honda EU1000T1AG is one of the quietest units on the market featuring 50 dB @100% and only 42 dB @25%.

Also, due to its dimension (17.8 x 9.5 x 14.9 inches, 28.7 pounds dry), Honda EU1000T1AG is also one of the smallest power generators on the market as well.

Honda EU1000T1AG comes with two 120V 20A 5-20R receptacles, allowing the user to power several devices/appliances via this power generator.

Although Honda EU1000T1AG doesn't feature 12V nor 5V USB ports, due to the pair of 120V receptacles, users can easily connect 12V or 5V USB chargers to the 5-15R receptacles and charge their devices.

Honda EU1000T1AG comes with a set of safety features, including a low oil alert which shuts off the engine if the low oil is detected, overload protection, and a CO-MINDER system, which is basically an advanced Carbon Monoxide detection system that monitors the amount of Carbon Monoxide in the air around the unit and if required, automatically shuts off the engine.

Other features include very low THD levels, parallel ready ports, and a two-year limited warranty.

Honda EU1000T1AG is excellent and one of the best power generators in this class, with only one issue - its price. Honda EU1000T1AG is a rather expensive model, but what You pay is what You get ...

For more reviews and recommendations, feel free to check the Honda EU1000i (EU1000T1AG) Portable Inverter Generator Amazon link (link opens in the new window).


Yamaha EF1000iS Portable Inverter Generator

yamaha ef1000is w300px

Yamaha EF1000iS is a compact and lightweight inverter power generator, powered by a 4-stroke 50cc engine, providing 900 Running Watts and 1000 Starting Watts.

Yamaha EF1000iS features a manual recoil starting system.

A relatively large fuel tank of 0.66 gallons and fuel-efficient engine combined with Yamaha's inverter technology, ensures a very long runtime on a single fuel tank - up to 11.9h @25% load.

Economy control switch allows the user to improve the fuel economy - when the switch is turned ON, the engine spins at variable speed, and when the switch is turned OFF, the engine spins at a constant speed, increasing the fuel consumption, but also improves the unit's reaction time when the electric load is increased.

Also, thanks to fully enclosed construction, Yamaha EF1000iS is one of the quietest power generators in the class.

The list of receptacles includes two AC 120V 15A 5-15R receptacles and one DC 12V 8A lead-acid battery charging port.

Yamaha EF1000iS features a low-oil alert engine shut-off system and overload protection.

Unit comes with a 2-year commercial and 3-year residential warranty, but the warranty may change over time.

For more reviews and recommendations, feel free to check the Yamaha EF1000iS Portable Inverter Generator Amazon link (link opens in the new window).


Generac 76711 GP1200i Power Generator

generac gp1200i h300px

Generac 76711 GP1200i portable inverter power generator is powered by 54cc 4-stroke engine, providing 1000 Running Watts and 1200 Starting Watts.

Engine feature manual recoil starting system.

Generac 76711 GP1200i runtime is 5.5h @50% load (500W) thanks to its 0.8 gallons (3 liters) fuel tank and inverter technology that ensures low THD power.

The physical dimensions of the unit are 18.5 x 10.2 x 15.7 inches and it weighs 33 pounds (15 kg) dry - it is somewhat larger than Honda EU1000i and Yamaha EF1000iS, but Generac 76711 GP1200i is also a slightly stronger unit.

Also, Generac 76711 GP1200i is a more budget-friendly unit than Honda and Yamaha 1000W power generators.

Generac 76711 GP1200i features a fully enclosed body, keeping the noise down - although Generac doesn't state official noise levels, Generac 76711 GP1200i is a rather quiet unit.

The list of receptacles includes a pair of 120V 20A 5-20R and two USB charging ports (1.0A, 2.1A).

Generac 76711 GP1200i comes with a 1-year commercial and 2-year residential warranty.

Personally, if You are looking for a 1000W power generator and You don't want to spend a small fortune on them, consider Generac 76711 GP1200i inverter power generator.

For more reviews and recommendations, feel free to check the Generac 76711 GP1200i Power Generator Amazon link (link opens in the new window).


Buffalo Tools Sportsman GEN1000i Power Generator

buffalo tools sportsman gen1000i w300px

Buffalo Tools Sportsman GEN1000i Power Generator is one of the most compact 1000W power generators.

Unit is powered by a 40cc 4-stroke engine, providing 800 Running Watts and 1000 Starting Watts, available using one 120V 20A 5-20R receptacle and one 12V 4A charging port.

The engine comes with a manual recoil starting system.

Buffalo Tools Sportsman GEN1000i Power Generator features physical dimensions of 15.6 x 8 x 13.8 inches (39.6 x 20.3 x 35 cm) and it weighs just 22.8 pounds (10.3 kg) dry (with no fuel in the tank).

Despite being a rather compact unit, Sportsman GEN1000i features a runtime of 6.3 hours @50% load (400W).

Fully enclosed construction keeps the noise to an acceptable 56 dB @23 feet (7m) distance.

Safety features include a low oil alert engine shut-off system and an overload protection system.

Buffalo Tools Sportsman GEN1000i Power Generator comes with a 1-year limited warranty.

If You have issues with limited storage space, consider Sportsman GEN1000i - it is a very compact unit, one of the lightest in its class and it comes with a single 5-20R receptacle and 12V 4A charging port. Enough in emergencies, during blackouts, but also can come in very handy when tailgating, camping, fishing, and similar.

For more reviews and recommendations, feel free to check the Buffalo Tools Sportsman GEN1000i Power Generator Amazon link (link opens in the new window).


TogoPower GG1000 Power Generator

togopower gg1000 w300px

TogoPower GG1000 Power Generator is a very popular and one of the most affordable power generators in its class.

Unit is powered by 63cc two-stroke engine which burns 50:1 fuel:oil mixture, providing 800 Running Watts and 1000 Starting Watts

A relatively large fuel tank of 1.05 gallons ensures 6-hour runtime @50% (400W) load.

Noise levels are not explicitly stated, but the noise is acceptable - this unit is noisier than Honda or Yamaha, of course, but it is not as noisy as some similar, open-frame power generators.

Output power is provided via a single 120V 20A 5-20R receptacle - there are no additional 12V nor USB ports.

TogoPower GG1000 Power Generator comes with a 1-year warranty.

Note: several brands offer very similar power generators with different labels, colors, and few other little details. TogoPower GG1000 Power Generator is one of the most popular of similar units, and despite its very acceptable price, it is a surprisingly good unit - again, it cannot be compared in many ways with other 1000W units that cost sometimes 2-5x more, but when maintained properly, it works.

For more reviews and recommendations, feel free to check the TogoPower GG1000 Power Generator Amazon link (link opens in the new window).


Few Final Words

Although there are many more models on the market, the actual list of the best 1000W power generators can be narrowed down to just a few models.

When choosing your next 1000W power generator, choose according to your own needs and requirements:

Model Running Watts
Starting Watts
Runtime
Noise
Receptacles
Buffalo Tools Sportsman GEN1000i 800W
1000W
6.3h @50% 56 dB @23 ft AC: 120V 20A 5-20R
DC: 12V 4A
Coleman CM04101 900W
1000W
8h @50% 58 dB @23 ft AC: 120V 20A 5-20R
DC: 12V 10A
Firman P01001 1050W
1300W
9.0h @50% 62 dB @50%  AC: 120V 20A 5-20R
Generac 76711 GP1200i 1000W
1200W
5.5h @50% - AC: 2x 120V 20A 5-20R
DC: 5V USB (1.0A, 2.1A)
Honda EU1000i (EU1000T1AG) 900W
1000W
3.0h @100%
6.8h @25%
50 dB @100%
42 dB @25%
AC: 2x 120V 20A 5-20R
Mech Marvels MM2350 1200W
1500W
9h @50% 68 dB AC: 2x 120V 20A 5-20R
DC: 12V 8A
Powermate PM1200i 1000W
1200W
7h @25% - AC: 2x 120V 20A 5-20R
PowerSmart PS50A 900W
1000W
5h @50% 49 dB AC: 120V 20A 5-20R
Pulsar PG1202S 900W
1200W
8.5h @50% - AC: 2x 120V 20A 5-20R
DC: 12V 8A
Ryobi RYi1000 900W
1000W
8h @50% 65 dB AC: 120V 15A 5-15R
DC: 12V 7.5A
TogoPower GG1000 800W
1000W
6h @50% - AC: 120V 20A 5-20R
Yamaha EF1000iS 900W
1000W
11.9h @25% 47 dB AC: 2x 120V 15A 5-15R
DC: 12V 8A

Note: Amazon affiliate links (the 'Model' column) open in the new windows, feel free to check them for the most up-to-date offers and prices. Also, we have really tried to verify every single bit of information in this chart and article (and in the end - our website), but things change over time without prior notice.

While 2-stroke engines are rather simple and use fuel:oil mix, 4-stroke engines are more fuel-efficient. If the power generator lacks a certain receptacle, various adapters can easily be found and ordered from online stores.

Although kind of smallish, 1000W power generators can provide strong currents that can make damage, injuries, or worse - when working with the power generators in general, not just 1000W units, be sure to stay safe and follow safety warnings provided by their manufacturers - read the Owner's Guide and keep it near the unit as future reference.

Amazon Search:

- 1000W Portable Power Generator

- 1000W Portable Power Station

- Portable Power Inverter Generator

Note: Amazon links open in the new windows, feel free to check them for the most up-to-date offers and prices.