The Honda EU2200i Companion is the EU2200i variant with a 30-amp L5-30R outlet, designed as the second half of a 4,400-watt parallel pair. Buy it with, or after, a standard EU2200i—not instead of one—unless you specifically need that 30-amp locking outlet for paired output.
Honda EU2200ITAN1 2200-Watt 120-Volt Companion Super Quiet Portable Inverter Generator with CO-Minder - 49-State
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Honda EU2200i Companion specs at a glance
The EU2200i Companion uses the same core generator platform as the standard EU2200i, but Honda changes the outlet panel. That outlet change is the whole point of the model.
| Spec | Honda EU2200i Companion |
|---|---|
| Starting watts | 2,200 watts, per Honda dealer spec sheets |
| Running watts | 1,800 watts |
| Voltage | 120V |
| Rated current | 15A running / 18.3A peak |
| Companion outlet setup | One 30A 125V L5-30R locking outlet and one 20A 125V 5-20R outlet |
| Parallel output | 4,400 watts combined with another EU2200i-family unit |
| Single-cord 30A ceiling | Up to 3,600 watts through the 30A outlet when paralleled |
| Engine | Honda GXR120 commercial engine, 121cc, cast-iron sleeve |
| Starting method | Recoil start |
| Fuel tank | 0.95 gallon |
| Runtime | 8.1 hours at 25% load; about 4 hours at 50%; about 3.2 hours rated |
| Noise rating | 48-57 dB(A), by load |
| Dry weight | 47.4 lb |
| THD | Under 3% |
| Safety systems | CO-MINDER CO auto-shutoff, Oil Alert, overload protection |
| Bluetooth | Honda My Generator app with about 75-ft range, remote stop, and monitoring |
| Warranty | 3 years |
| Made in | Thailand |
| Typical price | About $1,199-$1,299, checked July 2026 |
The headline numbers are familiar if you already know the EU2200i: 2,200 starting watts and 1,800 running watts. The Companion doesn’t have a bigger engine, a bigger inverter, or more solo output than the standard model.
Its value is in how the power leaves the machine. The 30A locking outlet gives a paired EU2200i setup a clean way to feed one heavier cord instead of trying to split loads across small household receptacles.
What ‘Companion’ actually means
“Companion” means outlet panel, not extra power. Instead of the standard EU2200i’s 20A duplex receptacle and 12V DC outlet, the Companion gets one 30A 125V L5-30R locking receptacle plus one 20A 125V receptacle.
Honda built it to sit beside another EU2200i-family generator in parallel service. The usual setup is a standard EU2200i and an EU2200i Companion, connected with Honda parallel cables, with the larger combined output available at the Companion’s 30A outlet.
That design solves a real problem. A single EU2200i is easy to carry and quiet enough for campgrounds, but 1,800 running watts isn’t enough for many RV air-conditioning starts. Adding the Companion turns the setup into a portable 4,400-watt pair without jumping to a much larger generator.
Parallel cables are sold separately, so don’t assume the Companion box includes everything needed to make the pair. If you’re pricing the system, count the generator, the cables, fuel, oil, and any RV adapter you’ll need.
Parallel power: the 4,400-watt math
Two compatible EU2200i-family units in parallel make 4,400 watts combined. Honda pairs two units max, and the EU2200i Companion is also compatible with the earlier EU2000i family.
The detail that trips people up is the 30A outlet math. A paired set may have 4,400 watts of combined generator capacity, but a 30A 120V cord can carry up to 3,600 watts. That’s the practical ceiling through the single 30A outlet on the Companion.
That doesn’t make the setup weak. It means the cord and receptacle are doing exactly what 30A at 120V allows. The extra capacity still helps with motor starting, surge loads, and running a mix of smaller loads without pushing the machines as hard.
If you’re new to this setup, our parallel generator guide explains how matched inverter generators share load and why the cable kit matters. The short version: use the right Honda parallel cables, connect the units correctly, and don’t try to parallel more than Honda allows.
For RV owners, the plug shape matters as much as the wattage. The EU2200i Companion’s 30A receptacle is an L5-30R locking outlet, not a TT-30R RV receptacle. A 30-amp RV owner typically uses an L5-30P to TT-30R adapter between the Companion and the RV cord.
A standard EU2200i plus a Companion is a strong match for a 30-amp RV because the pair can start and run a 13,500 BTU RV air conditioner, which is commonly around 2,800-3,000 starting watts and up to about 1,500 running watts. If you’re sizing around an RV panel, air conditioner, and adapter, read our 30-amp RV generator sizing guide before buying cables.
On its own: what one Companion can run
Used alone, the EU2200i Companion is still a 1,800-running-watt inverter generator. The 30A receptacle doesn’t create more wattage by itself, and it doesn’t turn the unit into a true 30-amp RV generator on its own.
One Companion is useful for small, steady loads. Think refrigerator, lights, phone chargers, laptops, router, TV, battery chargers, and other modest 120V equipment, as long as the combined load stays inside the generator’s 1,800 running watts.
It’s also clean-power friendly. Honda’s published figure is under 3% THD, which is the range buyers look for when they want to run electronics from an inverter generator instead of a conventional open-frame unit.
The limitation is air conditioning. A small trailer without AC is a reasonable solo use case, but a 13,500 BTU RV air conditioner is the reason many people buy the second generator. That’s the classic path: buy a standard EU2200i for light camping now, add the Companion later when AC becomes part of the load.
If you only ever want one small inverter generator, the standard EU2200i usually makes more sense. It gives you the same power platform, the familiar household outlet layout, and the 12V DC outlet the Companion does not have.
Noise, runtime, and everyday use
Honda rates the EU2200i Companion at 48-57 dB(A), depending on load. A paired set runs around 51-plus dB(A), so it’s still conversation-quiet compared with a conventional jobsite generator.
Runtime is solid for a compact inverter, but it depends heavily on load. Honda’s figures show 8.1 hours at 25% load, about 4 hours at 50% load, and about 3.2 hours at rated load from the 0.95-gallon tank.
The dry weight is 47.4 lb, and the enclosed Super Quiet case has a molded handle. Most owners can move one unit by hand, which is the whole appeal of the two-generator approach: you carry two smaller machines instead of wrestling one heavier generator.
The Honda GXR120 commercial engine is a 121cc engine with a cast-iron sleeve. It’s recoil start, so there’s no electric-start battery to maintain, but there’s also no push-button start.
Current EU2200i Companion units include CO-MINDER. Honda’s CO auto-shutoff system shuts the generator down at 800 ppm immediately or at a 400 ppm 10-minute average, based on Honda’s published specification.
The Honda My Generator Bluetooth app is another useful current-model feature. The app offers remote stop and monitoring at about 75 ft, which is handy when the generator is outside and you want to check status without walking out every time.
Oil Alert and overload protection round out the safety package. Those features don’t replace basic generator habits, but they help protect the engine and inverter if oil level drops or the load gets out of hand.
Companion vs standard EU2200i vs EB2200i
The EU2200i, EU2200i Companion, and EB2200i live close together in Honda’s small inverter lineup, but they’re aimed at different buyers. The wrong choice usually comes from buying for the outlet panel you wish it had, instead of the one it actually has.
| Model | Best role | Outlets | Parallel capable | GFCI / neutral setup | 12V DC outlet | Typical price |
|---|---|---|---|---|---|---|
| Honda EU2200i Companion | Second unit in a parallel pair | One 30A 125V L5-30R plus one 20A 125V 5-20R | Yes, with EU2200i-family units; two units max | Not listed as full-panel GFCI in verified data | No | About $1,199-$1,299 |
| Standard Honda EU2200i | Best single-unit choice for most homeowners and campers | 20A duplex | Yes, with parallel outlets | Not listed as full-panel GFCI in verified data | Yes | About $1,179-$1,299 |
| Honda EB2200i | Industrial and jobsite use | Industrial outlet panel with full-panel GFCI | No | Full-panel GFCI, bonded neutral, OSHA compliance | Not provided in verified data | Not provided in verified data |
Here’s the buying rule: choose the standard EU2200i if you’re buying one small inverter generator, choose the Companion if you’re building a parallel pair with 30A output, and choose the EB2200i if jobsite rules matter more than parallel power. We reviewed the industrial version separately in our Honda EB2200i review, and the no-parallel detail is the key difference for RV buyers.
The Companion and standard EU2200i are the pair that makes sense for campers. The EB2200i is the outlier because OSHA compliance, bonded neutral behavior, and full-panel GFCI protection matter on jobsites, while RV owners usually care more about quiet inverter power and parallel capability.
Pros and cons
Pros
- Purpose-built outlet panel for a 30A parallel setup.
- Pairs with EU2200i-family units for 4,400 watts combined.
- Compatible with the earlier EU2000i family, per verified Honda-family compatibility data.
- Quiet 48-57 dB(A) operating range by load.
- Light enough at 47.4 lb dry for one-person handling in many situations.
- Clean under 3% THD inverter output for electronics.
- CO-MINDER, Oil Alert, and overload protection are included on current units.
- Honda My Generator Bluetooth app supports monitoring and remote stop at about 75 ft.
Cons
- Not stronger than the standard EU2200i when used alone.
- The 30A outlet is L5-30R, not the TT-30R RV receptacle.
- Parallel cables are sold separately.
- No 12V DC outlet, unlike the standard EU2200i.
- Recoil start only.
- The pair’s single-cord output is capped at 3,600 watts through the 30A outlet, even though combined generator capacity is 4,400 watts.
- At about $1,199-$1,299, it’s a premium small inverter generator.
Maintenance basics
The EU2200i Companion is still a small gas engine, so maintenance matters more than fancy app features. Keep the oil right, don’t run old fuel, and don’t store it dirty after a season of camping or outage duty.
Honda’s Oil Alert helps protect the engine, but it doesn’t choose the correct oil for your climate or usage. If you’re not sure what to keep on the shelf, our guide to what kind of oil a generator uses walks through the basics without guessing at your manual.
Storage deserves the same attention. A generator that starts easily in July can be a headache later if fuel sits untreated and the carburetor gums up.
Before offseason storage, drain or stabilize fuel according to the manual, clean the unit, and store it where moisture and critters won’t beat it up. Our generator winterizing guide covers the practical steps for putting a portable generator away the right way.
Bottom line
Buy the Honda EU2200i Companion if you’re building a quiet 4,400-watt Honda inverter pair and want the paired output available through a 30A locking outlet. It’s the right second unit for a standard EU2200i owner who wants to run a 13,500 BTU RV air conditioner with headroom.
Don’t buy it as your only EU2200i unless the L5-30R outlet specifically fits your plan. For a single small inverter generator, the standard EU2200i is usually the cleaner choice because it has the more useful outlet layout and the 12V DC outlet.
Frequently asked questions
What is the difference between the Honda EU2200i and the EU2200i Companion?
The main difference is the outlet panel. The standard Honda EU2200i has a 20A duplex outlet and a 12V DC outlet, while the EU2200i Companion has one 30A 125V L5-30R locking outlet and one 20A 125V outlet.
Can the EU2200i Companion run by itself?
Yes. By itself, the EU2200i Companion makes 1,800 running watts and 2,200 starting watts. The 30A outlet does not add power when the unit is used solo.
How many watts do two paralleled EU2200i units make?
Two compatible EU2200i-family generators make 4,400 watts combined in parallel. Through the single 30A outlet on the Companion, the practical ceiling is 3,600 watts because 120V x 30A equals 3,600 watts.
Will an EU2200i plus Companion pair run an RV air conditioner?
Yes, the pair is a common setup for a 13,500 BTU RV air conditioner. That AC size is typically around 2,800-3,000 starting watts and up to about 1,500 running watts, leaving headroom with the 4,400-watt pair.
Is the EU2200i Companion RV-ready?
Not in the plug-shape sense. The Companion uses a 30A L5-30R locking outlet, not a TT-30R RV receptacle, so 30-amp RV owners typically need an L5-30P to TT-30R adapter.
Does the Companion have CO-MINDER and Bluetooth?
Yes, current EU2200i Companion units include CO-MINDER and Honda My Generator Bluetooth app support. CO-MINDER shuts down at 800 ppm immediately or at a 400 ppm 10-minute average, and the app supports monitoring and remote stop at about 75 ft.
What parallel cables does the EU2200i Companion need?
It needs Honda parallel cables, sold separately. Honda supports pairing with EU2200i-family units, two units max, and the Companion is also compatible with the earlier EU2000i family.
