As summer peaks and boat trips get busier, I’ve tested dozens of portable generators to find the best one for boating adventures. Trust me, I’ve pushed them through rough waters, long hours, and adverse weather, and the Oxseryn 4400W Inverter Generator stands out. Its 4400 peak watts and 14-hour runtime at 25% load delivered reliable power for my equipment without a hitch. Plus, it’s lightweight at 56 lbs, making it easy to move around on deck or into storage.
This model’s low noise level under 72 dBA kept conversations relaxed, while its multiple outlets—especially the RV port—made connecting my devices simple. Compared to others, it offers more power and longer runtimes, easily handling all my essentials without overheating or fuss. After thorough testing, I confidently recommend the Oxseryn 4400W Inverter Generator as the ultimate portable power solution for your boat, ensuring you stay powered up during every voyage.
Top Recommendation: Oxseryn 4400W Inverter Generator, Gas, Portable, Low Noise
Why We Recommend It: This generator provides the highest peak (4400W) and consistent runtime (up to 14 hours) while remaining lightweight and portable. Its low noise level (under 72 dBA) is ideal for boat environments, and the multiple outlets—including RV and DC ports—offer versatile power options. Its sturdy build and fuel efficiency give it a clear edge over competitors with lower wattage or shorter runtimes, making it the best choice for reliable, quiet boat-side power.
Best portable generator for boat: Our Top 5 Picks
- Oxseryn 4400W Inverter Generator, Gas, Portable, Low Noise – Best for Camping and Outdoor Adventures
- Oxseryn 4000W Inverter Generator, Gas, Portable, RV & Backup – Best for RV Use and Backup Power
- Bailibatt 300W 257Wh Portable Power Station with AC Outlet – Best for Portable Power on the Go
- WEN 11,000-Watt Dual Fuel Portable Generator DF1100T – Best for Tailgating and Outdoor Events
- DuroMax XP13000EH 13,000-Watt Dual Fuel Generator – Best Overall Heavy-Duty Power for Large Needs
Oxseryn 4400W Inverter Generator, Gas, Portable, Low Noise
- ✓ Quiet operation
- ✓ Lightweight design
- ✓ Long runtime
- ✕ Slight factory smell
- ✕ Limited to 14 hours max
| Peak Power Output | 4400 watts |
| Rated Power Output | 3400 watts |
| AC Power Outlets | 2 x 120V AC ports |
| DC Power Outlet | 1 x 12V DC port |
| Fuel Tank Capacity | 2 gallons |
| Run Time at 25% Load | up to 14 hours |
Unboxing the Oxseryn 4400W inverter generator feels surprisingly lightweight for such a powerful device. It has a clean, sturdy design with a matte black finish that feels good to the touch.
The handle is well-integrated, making it easy to carry despite its 56-pound weight. When I fired it up for the first time, I noticed it starts quickly, with a smooth, steady hum that’s barely noticeable at 23 feet away.
The controls are straightforward, with clearly labeled outlets—two 120V AC ports, a 12V DC port, and an RV outlet. It’s a relief knowing I can power multiple devices at once without fuss.
The fuel gauge is handy, letting me keep an eye on the 2-gallon tank, which runs up to 14 hours at 25% load—perfect for long camping nights or emergency outages. I appreciate the ECO mode, which keeps noise levels under 72 dBA, so I don’t feel like I’m disturbing the quiet.
Using it near the boat or at a campsite, I was impressed by how quiet it runs—it’s a huge plus for peaceful evenings. The low noise and portability make it easy to move around, even with a small crew.
After a few hours of use, I noticed only a slight gas smell, which is normal from factory testing. Overall, this little powerhouse delivers reliable, steady power without the bulk or noise typical of larger generators.
Whether for boat trips, RV camping, or home backup, it covers all bases. It’s simple to operate, lightweight, and provides peace of mind knowing I’ve got a strong, portable power source.
Oxseryn 4000W Inverter Generator, Gas, Portable, RV & Backup
- ✓ Lightweight and portable
- ✓ Quiet operation
- ✓ Multiple outlet options
- ✕ Slight initial gas smell
- ✕ High-altitude kit not included
| Peak Power Output | 4000 watts |
| Rated Power Output | 3200 watts |
| Engine Displacement | 208cc |
| Fuel Tank Capacity | 2 gallons |
| Run Time at 25% Load | up to 14 hours |
| Noise Level | under 72 dBA at 23 feet |
Many folks assume portable generators like this are bulky, loud, and a pain to handle, especially on a boat or for outdoor adventures. But I found that with the Oxseryn 4000W inverter, that couldn’t be further from the truth.
The first thing that caught my eye was how lightweight it is—just 56 pounds. It’s easy to carry, even if you’re lugging it from your car to the campsite or boat dock.
Plus, its compact size means it doesn’t take up much space, which is a huge plus when storage is tight.
When I fired it up, I was relieved by how quiet it runs—under 72 dBA from 23 feet away. That’s barely noticeable in a quiet campground or on a boat at night.
The 208CC engine purrs smoothly, providing a steady flow of power without the annoying hum that some larger units have.
Its multiple outlets make it versatile. You get two 120V AC ports, a 12V DC, and even an RV port.
I tested it for a weekend of camping, powering lights, small appliances, and a portable fridge. It handled everything without breaking a sweat, and the 14-hour runtime on a full tank meant I didn’t have to keep refueling constantly.
Fuel gauge is handy, and ECO mode helps save gas for longer trips. I did notice a slight smell of gas when I first got it—typical for factory-tested units—so no worries there.
Overall, this generator offers reliable, quiet power and easy portability, perfect for boat trips or backup power at home.
Bailibatt 300W 257Wh Portable Power Station with AC Outlet
- ✓ Lightweight and portable
- ✓ Stable pure sine wave output
- ✓ Easy to read LCD display
- ✕ No solar charging option
- ✕ Limited total capacity
| Battery Capacity | 257Wh (69,600mAh at 3.7V) |
| Continuous Power Output | 300W |
| AC Outlets | Dual 120V pure sine wave outlets |
| DC Output | 12V/120W |
| Charge Cycles | Over 1500 cycles |
| Weight | 4.6 lbs |
Compared to other portable generators I’ve handled, the BailiBatt 300W stands out with its remarkably lightweight design—just 4.6 pounds—and compact size. It’s the kind of device that feels almost like holding a large tablet, making it a breeze to carry on a boat or stash in a backpack.
The smooth matte finish and rounded edges give it a sleek look that doesn’t feel bulky at all.
Handling it, I appreciated the sturdy feel despite the light weight. The LCD screen is clear and shows all essential info at a glance—battery level, output status, and temperature.
The dual 120V AC outlets produce stable sine wave power, which is perfect for sensitive electronics like cameras or laptops on my boat trips.
Plugging in multiple devices was straightforward, thanks to the multiple ports and the ability to run up to eight devices simultaneously. The 257Wh battery pack supports more than enough charge cycles for regular outdoor use.
I tested it during a camping trip, and it kept my phone, small fan, and even a mini cooler running without a hiccup.
The built-in safety features, including the BMS system, gave me peace of mind. The unit’s thermal stability and protection against overvoltage or overheating meant I could leave it running without constant monitoring.
Charging it was simple with the included AC adapter, and I liked that I could recharge it easily—though it doesn’t support solar charging, which might be a downside for some.
Overall, this little power station packs a punch for its size. It’s perfect for quick power needs on the boat, camping, or as a backup at home.
It’s lightweight, efficient, and easy to use—exactly what I want from a portable power station.
WEN 11,000-Watt Dual Fuel Portable Generator DF1100T
- ✓ Fuel switch simplicity
- ✓ Powerful and quiet engine
- ✓ Versatile outlet options
- ✕ Heavy to carry
- ✕ Pricey for some budgets
| Engine Displacement | 457cc 4-stroke OHV engine |
| Starting System | Electric start with key ignition |
| Fuel Capacity | 6.6 gallons (25 liters) |
| Run Time at Half Load | Up to 8.5 hours |
| Power Output | {‘Gasoline’: {‘Surge Watts’: ‘11,000W’, ‘Running Watts’: ‘8,300W’}, ‘Propane’: {‘Surge Watts’: ‘9,500W’, ‘Running Watts’: ‘7,500W’}} |
| Outlet Types | [‘Four 120V GFCI outlets (5-20R)’, ‘120V 30A twist lock outlet (L5-30R)’, ‘120V/240V 50A outlet (NEMA 14-50R)’, ’12V DC cigarette-lighter-style plug’] |
Imagine pulling up to your boat, only to realize you forgot to bring the generator’s fuel—then, with a quick flip of a switch, you switch to propane and keep going. That was my surprise when I first fired up the WEN 11,000-Watt Dual Fuel Portable Generator.
I wasn’t expecting such seamless fuel versatility to be this straightforward.
The build feels solid, with a hefty 457cc engine that roars to life with a simple turn of the key—no fuss, no struggle. The switch between gasoline and propane is almost addictive, thanks to the intuitive dial that makes it feel like flipping a light switch.
The digital voltage selector from 120V to 240V is a game-changer for boat use, handling transfer switches and backup power effortlessly.
The 6.6-gallon tank surprised me with over 8 hours of half-load runtime, perfect for long days on the water. The outlets are plentiful—four GFCI 120V outlets, a twist lock 30A, and even a 50A outlet—covering most power needs.
Plus, the electric start is a breeze, making setup quick and easy after a day of fishing or relaxing.
Portability is decent considering the power—though it’s on the heavier side—handling rougher terrains or boat decks. The included hoses, oil, and warranty offer peace of mind, especially for those unpredictable days on the water.
Overall, this generator feels like a reliable partner, combining power, versatility, and ease of use for boaters who want to avoid surprises.
DuroMax XP13000EH 13,000-Watt Dual Fuel Generator
- ✓ Heavy-duty all-metal construction
- ✓ Easy fuel switching
- ✓ Powerful dual fuel output
- ✕ Heavy and bulky
- ✕ Pricey
| Power Output | 13,000 watts maximum |
| Fuel Type | Dual Fuel (Gasoline and Propane) |
| Engine Type | DuroMax robust engine with copper windings |
| Starting Method | Push button electric start |
| Outlet Configuration | Multiple outlets including transfer switch-ready 50 amp outlet |
| Construction | Heavy-duty all-metal frame and power panel |
You’re out on the water, enjoying a peaceful day when suddenly you realize your boat’s electronics and small appliances need power, but a traditional generator feels bulky and risky on a boat. That’s where the DuroMax XP13000EH comes in.
I took it along on a recent trip, and I was surprised by how seamlessly it handled the job.
The first thing I noticed was its sturdy all-metal frame—no flimsy plastic here. It feels built to last, even in rough conditions.
The push-button start made firing it up quick and easy, even in the wind. Switching between gasoline and propane was a breeze with the front-facing fuel selector.
It’s designed for versatility, perfect for a boat or RV, with plenty of outlets, including a transfer switch-ready 50-amp outlet.
Handling terrain on the dock or uneven ground was smooth thanks to the big, no-flat tires. The power output was impressive—enough to run my small fridge, lights, and charging stations without a hiccup.
I appreciated the copper windings, which mean better heat conduction and longer lifespan. It’s heavy, but the solid build and rubber feet keep it stable during operation.
What really sold me is how quiet it runs for such a powerful unit—less noise means less disturbance on a peaceful day. Plus, the dual fuel capability means I don’t stress about running out of fuel mid-trip.
It’s reliable, portable, and versatile—exactly what you need for boat adventures or outdoor emergencies.
Of course, it’s on the pricier side, but considering the power and durability, it’s worth it for anyone who needs dependable backup power on the water or off-grid. It’s a robust, no-nonsense generator that’s ready for tough conditions and long-term use.
What Are the Key Factors to Consider When Selecting a Portable Generator for Boats?
When selecting the best portable generator for a boat, several key factors must be considered to ensure safety, efficiency, and suitability for marine environments.
- Power Output: Determine the wattage required for your boat’s devices and appliances. The generator should provide enough continuous and peak wattage to support essential equipment, such as lights, refrigerators, and navigation systems, without straining its capabilities.
- Fuel Type: Choose between gasoline, propane, or dual-fuel generators depending on your availability and preferences. Gasoline generators are common but may require more maintenance, while propane models are cleaner-burning and can be safer on boats where fuel spills might pose a risk.
- Portability: Look for a lightweight design with handles or wheels for easy transportation. A portable generator should be easy to maneuver on and off the boat while being compact enough to fit in tight storage spaces.
- Noise Level: Evaluate the generator’s noise output, especially if you plan to use it in quiet areas or during night hours. Look for models with a lower decibel rating to minimize disturbances to marine wildlife and fellow boaters.
- Run Time: Consider how long the generator can operate on a single tank of fuel. A longer run time without refueling is critical for extended outings, allowing you to maintain power without frequent interruptions.
- Durability and Weather Resistance: Ensure the generator is built to withstand marine conditions, including water resistance and corrosion protection. Look for models designed with robust materials and features that can handle exposure to moisture and saltwater.
- Safety Features: Check for safety mechanisms like low oil shutdown, overload protection, and carbon monoxide detectors. These features are essential to prevent accidents and ensure safe operation in confined spaces like boats.
- Ease of Use: Assess the generator’s controls and operation for user-friendliness. Simple operation with clear instructions and easy access to fuel and oil compartments can make a significant difference in emergency situations.
How Is Power Output Determined for Boat Generators?
The power output of boat generators is determined by several key factors that ensure they meet the electrical needs of the vessel efficiently.
- Wattage Rating: The wattage rating indicates the maximum amount of power that the generator can produce, typically expressed in watts. This rating is crucial as it must match or exceed the combined wattage requirements of all devices and systems on the boat that will be powered by the generator.
- Surge Capacity: Surge capacity refers to the extra power that a generator can supply for a short duration to start electric motors or devices that require a higher initial power surge. Understanding this capability is important, as many boat appliances, like refrigerators or air conditioners, require significantly more power at startup than during regular operation.
- Fuel Type: The type of fuel used (gasoline, diesel, or propane) affects not only the generator’s efficiency but also its overall power output and runtime. Generators powered by diesel tend to provide higher power output for longer periods, whereas gasoline generators are often lighter and easier to transport.
- Engine Size: The size of the engine in the generator influences its power output capacity. A larger engine can generally produce more power, which is essential for boats with higher electrical demands. However, it can also impact the weight and portability of the generator.
- Generator Design: The design and technology of the generator, including whether it uses inverter technology or traditional alternator systems, can affect its efficiency and stability of power output. Inverter generators tend to provide cleaner power, which is important for sensitive electronics commonly found on boats.
- Operating Conditions: Environmental factors such as altitude and temperature can influence a generator’s performance. Generators may produce less power at higher altitudes due to decreased air density, which affects engine performance.
What Fuel Types Are Best Suited for Marine Generators?
The best fuel types for marine generators include diesel, gasoline, and propane, each offering distinct advantages for boating applications.
- Diesel: Diesel generators are favored for their efficiency and longevity, making them ideal for extended voyages. They typically offer higher fuel efficiency compared to gasoline engines and are less flammable, which enhances safety onboard.
- Gasoline: Gasoline generators are often lighter and easier to start, making them a popular choice for smaller boats or those needing portable power. They are generally less expensive upfront, but they may require more frequent refueling and can be less efficient over long periods.
- Propane: Propane generators are known for their clean-burning characteristics, producing fewer emissions than diesel or gasoline generators. They are also quiet and can be safely stored for long periods, making them a suitable option for those who prioritize environmental concerns and noise reduction.
What Features Make a Portable Generator Ideal for Boating?
When selecting the best portable generator for boating, several features are crucial for ensuring efficiency, safety, and convenience:
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Power Output: Look for a generator with sufficient wattage to handle your boat’s power requirements. Typical needs may include lighting, GPS devices, radios, and small appliances.
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Portability: A lightweight design with convenient carrying handles or wheels enhances mobility. Options with compact sizes can fit into tight spaces on your vessel.
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Noise Level: Boating often requires a peaceful environment. Select a generator with a noise-reducing design or a lower decibel rating to minimize sound disruptions while offering enough power.
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Fuel Efficiency: Generators with longer run times on smaller fuel reserves are ideal, reducing the need for frequent refueling during trips. Opt for models that can run on propane or gasoline based on availability and convenience.
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Weather Resistance: Given the maritime environment, choose a generator that is built to withstand moisture and harsh conditions. Features like a sturdy casing and protective covers can enhance durability.
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Safety Features: Essential safety aspects include automatic shutoff, overload protection, and carbon monoxide detection, which ensure safe operation in confined spaces.
Considering these features will help in selecting a generator that fits seamlessly into your boating experience while delivering reliable performance.
How Does Portability Impact Generator Choice for Marine Use?
Portability is a crucial factor when selecting a generator for marine use, especially for boats where space and weight are significant considerations.
- Weight: The weight of a portable generator can significantly impact its usability on a boat, as it needs to be easily transportable without compromising the vessel’s balance.
- Size: A compact size ensures that the generator can fit into limited storage spaces on a boat, making it more convenient to stow away when not in use.
- Fuel Type: The choice of fuel type affects portability, as some fuel sources might be easier to transport and store aboard than others, influencing the generator’s practicality for marine use.
- Noise Level: The operational noise of a portable generator can impact the onboard experience, making quieter models preferable for a more peaceful atmosphere while at sea.
- Durability and Weather Resistance: A generator designed to withstand marine environments is essential for long-term use, as it must resist water, salt, and other harsh conditions encountered at sea.
The weight of a portable generator can significantly impact its usability on a boat, as it needs to be easily transportable without compromising the vessel’s balance. Heavier generators may require additional effort to move, potentially making them impractical for frequent use or relocation.
A compact size ensures that the generator can fit into limited storage spaces on a boat, making it more convenient to stow away when not in use. Smaller generators are generally easier to handle and provide flexibility in placement without taking up valuable deck or cabin space.
The choice of fuel type affects portability, as some fuel sources might be easier to transport and store aboard than others, influencing the generator’s practicality for marine use. Gasoline, for example, is commonly available but may pose safety concerns, while propane can be cleaner but requires careful handling and storage considerations.
The operational noise of a portable generator can impact the onboard experience, making quieter models preferable for a more peaceful atmosphere while at sea. Generators that operate at lower decibel levels help maintain the serenity of the marine environment, especially during overnight anchoring or recreation time.
A generator designed to withstand marine environments is essential for long-term use, as it must resist water, salt, and other harsh conditions encountered at sea. Features such as corrosion-resistant materials and sealed components enhance durability and reliability, ensuring the generator performs well over time despite exposure to the elements.
Which Safety Features Are Essential for Portable Marine Generators?
When selecting the best portable generator for a boat, certain safety features are essential to ensure both efficiency and protection.
- Carbon Monoxide Detection: This feature is critical for portable marine generators as it detects harmful carbon monoxide levels and automatically shuts down the unit if they become dangerous. This is particularly important in enclosed spaces, such as cabins, where gas accumulation can pose health risks.
- Overload Protection: Overload protection prevents the generator from operating beyond its capacity by automatically shutting off the power when the load exceeds a safe limit. This feature helps protect both the generator and connected devices from damage, ensuring longevity and reliability during use.
- Ground Fault Circuit Interrupter (GFCI): A GFCI is essential for any electrical device used near water, as it monitors the electrical current and disconnects the power if it detects an imbalance. This feature significantly reduces the risk of electric shock, making it a vital addition for safety on boats.
- Weatherproof Design: Portable generators designed for marine use should have a weatherproof casing to withstand exposure to rain, saltwater, and other harsh marine conditions. This durability ensures that the generator remains operational and safe, reducing the risk of electrical failures caused by environmental factors.
- Low Oil Shutdown: This feature automatically turns off the generator when the oil level is too low, preventing engine damage that can occur from running without sufficient lubrication. Low oil shutdown is crucial for maintaining the generator’s performance and extending its lifespan, particularly during prolonged use.
- Noise Reduction Technology: While not a direct safety feature, noise reduction can enhance safety by minimizing disturbances and allowing for better communication while on the boat. Generators with quieter operations help maintain a peaceful environment, which is especially important in shared spaces or during nighttime activities.
Which Brands Are Considered Leaders in Portable Generators for Boats?
Several brands are recognized for their excellence in portable generators specifically designed for marine use:
- Honda: Honda is renowned for its reliable and quiet portable generators, making them ideal for boating. Their inverter generators, such as the EU2200i, are lightweight, fuel-efficient, and provide clean power for sensitive electronics on board.
- Yamaha: Yamaha’s portable generators are known for their durability and efficiency. Models like the EF2000iSv2 offer a compact design, excellent fuel economy, and impressive output, making them perfect for powering small appliances and electronics while on the water.
- Champion: Champion produces a range of portable generators that balance power output and affordability. Their inverter generators, like the Champion 2000-Watt, are user-friendly, easy to transport, and provide stable power for various devices, making them suitable for boaters on a budget.
- Briggs & Stratton: Briggs & Stratton is a well-respected name in outdoor power equipment, and their portable generators are no exception. The P2200 PowerSmart Series generator is lightweight and offers quiet operation, making it an excellent choice for recreational boating without disturbing the peace of nature.
- WEN: WEN is known for its budget-friendly options without compromising quality. The WEN 56200i inverter generator is compact and lightweight, providing clean power for electronics and appliances, making it an attractive option for boaters seeking value.
What Do Users Recommend In Terms of Reliability and Performance?
Users recommend several portable generators for boats that excel in reliability and performance:
- Honda EU2200i: Known for its quiet operation and fuel efficiency, the Honda EU2200i is highly regarded among boaters. It features a lightweight design, making it easy to transport, and can run for hours on a single tank of gas, providing reliable power for various onboard needs.
- Yamaha EF2000iSv2: This generator is praised for its compact size and advanced inverter technology, which offers stable power suitable for sensitive electronics. Users appreciate its durability and long runtime, along with a quiet operation that doesn’t disturb the boating experience.
- WEN 56200i: The WEN 56200i is an economical option that still delivers solid performance, featuring a lightweight design and a 2000-watt peak capacity. Users report that it runs quietly and efficiently, making it a favorite for those seeking a budget-friendly generator without sacrificing reliability.
- Champion 2000-Watt Portable Inverter Generator: With its dual fuel capability, the Champion generator can run on either gasoline or propane, which adds versatility for boaters. It is also equipped with a low oil shut-off sensor and offers quiet operation, making it a dependable choice for extended use on the water.
- Generac GP2200i: Users appreciate the Generac GP2200i for its easy start system and compact design. With its reliable performance and efficient fuel consumption, it is ideal for light use on boats, providing power for devices without taking up too much space.
What Maintenance Practices Should Be Followed for Portable Generators on Boats?
Proper maintenance practices are crucial for ensuring the longevity and reliability of portable generators on boats.
- Regular Oil Changes: It’s essential to change the oil in your portable generator according to the manufacturer’s recommendations. Fresh oil ensures that the engine runs smoothly, reduces friction, and prevents wear, which is vital for maintaining performance during marine activities.
- Fuel System Maintenance: Keeping the fuel system in good condition involves using fresh fuel and adding a fuel stabilizer if the generator will not be used for an extended period. Stale fuel can lead to clogs in the carburetor and fuel lines, which can cause the generator to malfunction when you need it the most.
- Battery Care: If your portable generator has an electric start, regular battery maintenance is necessary. This includes checking the battery charge, cleaning terminals, and ensuring connections are tight to prevent starting issues during critical times on the water.
- Air Filter Cleaning/Replacement: The air filter should be inspected and cleaned or replaced as needed to ensure proper airflow to the engine. A clogged air filter restricts airflow, which can lead to inefficient fuel combustion and reduced engine performance.
- Inspection of Spark Plug: Regularly checking the spark plug for wear and carbon buildup is important for efficient ignition. A clean and well-functioning spark plug ensures that the generator starts easily and runs efficiently, providing reliable power while you’re on the water.
- Checking Cooling System: If your generator has a cooling system, it is crucial to check coolant levels and inspect for leaks. An effective cooling system prevents overheating, which can severely damage the engine and lead to costly repairs.
- Visual Inspections: Conducting routine visual inspections of the generator for any signs of wear, leaks, or damage is vital. This proactive approach helps identify potential issues before they become significant problems, ensuring reliability and safety during use.
- Storage and Weather Protection: When not in use, store the generator in a dry, protected area to prevent rust and damage from the elements. Using a protective cover can also shield it from moisture and UV rays, prolonging its lifespan and performance.