500Wh Portable Power Stations: What That Battery Really Runs
Off-grid power editor
Published
Updated
Last fact-checked
This guide is for people who want something small enough to carry and big enough to last a night, and who have narrowed the search to the 500Wh bracket. We compared four units spanning 292Wh to 768Wh, which is the range 500Wh shoppers actually cross-shop, on the specifications that separate them: inverter output, watt-hours per pound, rated cycle life and outlet count. We did not test these units, and every review states exactly what its recommendation rests on. What you get here is the arithmetic the listings leave out. We divide capacity by real loads to show honest runtime, publish watt-hours per pound for every pick, multiply capacity by cycle rating to give lifetime kilowatt-hours, and say plainly where this size is the wrong answer.
What is the best 500Wh portable power station?
The Jackery Explorer 500 v2 suits the widest range of buyers in this bracket. It is the only pick that actually holds 500Wh, it switches over in 10ms, and its 6,000-cycle rating gives roughly 3,072 kilowatt-hours of lifetime throughput, the highest here. If anything on your list has a heating element or a motor, the Anker SOLIX C800X and its 1200W inverter is the only unit here that will run it.
Key takeaways
- At this size the inverter rules appliances in or out, and the battery only decides how long the ones that qualify keep running
- Every unit here empties in roughly an hour at its own headline wattage, and the one with the biggest inverter empties fastest at about 38 minutes
- Watt-hours per pound runs from 32.0 to 42.2 across this shortlist, and the two units holding identical 768Wh differ by 5.8 lb
- Multiply capacity by rated cycles and a 512Wh pack can outlast a 768Wh pack by roughly 768 kilowatt-hours over its life
- Allow about 15% for conversion loss between the rated pack and the AC socket before planning any runtime
Our picks at a glance
Every unit below wins a specific situation rather than a place in a ranking. Pick the row that matches how you will actually use it.
-
Best for overnight CPAP and router backup
Jackery Explorer 500 v2
Overnight duty on a steady low-wattage load such as a CPAP machine, a router and modem, or a desk full of electronics that must not reboot.
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Best for keeping a whole campsite of devices charged
EcoFlow RIVER 2 Pro
Campsites, tailgates and van weekends where six or eight small devices need charging at once and the unit gets lifted in and out of a vehicle daily.
-
Best for kettles, coffee makers and power tools
Anker SOLIX C800X
Camp kitchens, work benches and job-site corners where something with a heating element or a motor has to run for short bursts rather than all night.
-
Best for one-hand carry and day trips
Jackery Explorer 300
Day trips, photography sessions and hotel-room work where laptops, cameras and phones are the entire load and the unit is carried rather than wheeled.
How they compare
Scroll the table sideways to see every column.
| Product | Where to buy | Award | Capacity | AC output | Weight | Rated cycle life | Ports | Warranty | Best for |
|---|---|---|---|---|---|---|---|---|---|
| Jackery Explorer 500 v2 | Best for overnight CPAP and router backup | 512Wh | 500W (1000W surge) | 12.6 lb (5.7 kg) | 6,000 charge cycles | 2 AC sine wave outlets | 5 year manufacturer | Overnight duty on a steady low-wattage load such as a CPAP machine, a router and modem, or a desk full of electronics that must not reboot. | |
| EcoFlow RIVER 2 Pro | Best for keeping a whole campsite of devices charged | 768Wh | 800W | 18.2 lb (8.3 kg) | 3,000 cycles to 80% | 11 outlets total | 5 years | Campsites, tailgates and van weekends where six or eight small devices need charging at once and the unit gets lifted in and out of a vehicle daily. | |
| Anker SOLIX C800X | Best for kettles, coffee makers and power tools | 768Wh | 1200W (1600W SurgePad) | 24.0 lb (10.9 kg) | -- | 10 total | 5 years | Camp kitchens, work benches and job-site corners where something with a heating element or a motor has to run for short bursts rather than all night. | |
| Jackery Explorer 300 | Best for one-hand carry and day trips | 292Wh | 300W (600W peak surge) | 7.1 lb (3.2 kg) | Over 4,000 cycles to 70% | 6 total, 2 AC outlets, 1 USB-C PD 100W, 2 USB-A, 1 car port 120W | 2 year manufacturer | Day trips, photography sessions and hotel-room work where laptops, cameras and phones are the entire load and the unit is carried rather than wheeled. |
The full reviews
Best for overnight CPAP and router backup
Jackery Explorer 500 v2
Jackery
The Explorer 500 v2 is the only unit here that actually holds 500Wh, and it pairs that with a 10ms switchover and a 6,000-cycle rating that no other pick comes close to. What you give up for that combination is the smallest inverter on the page at 500W continuous, which decides what you are allowed to plug in.
What we like about the Jackery Explorer 500 v2
- 512Wh is the true centre of this bracket, and at 12.6 lb that works out at 40.6Wh per pound
- 10ms UPS switchover is fast enough that a router, a modem or a desktop never notices the cut
- Rated for 6,000 charge cycles, twice the EcoFlow RIVER 2 Pro rating, which is about 16.4 years at one full cycle a day
- 512Wh multiplied by 6,000 cycles is roughly 3,072 kilowatt-hours of lifetime throughput, the highest number on this shortlist
- Refills 410Wh in the quoted 52 minutes to 80%, about 7.9Wh returned per minute
Where it falls short for the Jackery Explorer 500 v2
- The 500W continuous inverter is 700W below the Anker SOLIX C800X and will not start a full-size refrigerator compressor, so the 1000W surge figure is a momentary allowance rather than a working rating
- The published port list is two AC sine wave outlets and nothing else, against 11 total ports on the EcoFlow RIVER 2 Pro and 10 on the Anker SOLIX C800X, so a camp table with several devices needs a power strip
- No maximum solar input appears in the specification we compared, so a panel cannot be sized against it, while the RIVER 2 Pro publishes 220W and the C800X 300W
- The 52-minute figure is quoted to 80% rather than full, which flatters it against units that publish a time to 100%
Key specifications
- Capacity
- 512Wh
- AC output
- 500W (1000W surge)
- Weight
- 12.6 lb (5.7 kg)
- AC recharge time
- 52 minutes to 80%
- UPS switchover
- 10ms
- Rated cycle life
- 6,000 charge cycles
At 512Wh this is the unit the search term describes, and it is worth being precise about what that number buys before anything else.
What 512Wh covers, with the division shown
A CPAP machine running without its heated humidifier draws roughly 40W. Allow about 15% for inverter conversion loss, a planning assumption rather than a measurement, and the 512Wh pack delivers around 435Wh at the socket. Divide that by 40W and you get about 10.9 hours, which is a full night with several hours in hand.
Run the same division against other loads:
- A laptop and a router together at 60W: about 7.3 hours
- A 20W fan overnight: about 21.8 hours
- A refrigerator averaging 150W across its duty cycle: about 2.9 hours
That last figure is the one people get wrong. The battery is not the problem there. The inverter is.
The inverter is the real ceiling
500W continuous is the smallest figure on this page, and it decides the shortlist of what you may plug in far more sharply than 512Wh does. A fridge compressor pulls several times its running draw at start-up, and the 1000W surge rating is a momentary allowance designed to swallow a brief spike, not a second continuous rating you can lean on.
So treat 450W as the honest working ceiling. Electronics, lighting, fans, a CPAP, a laptop, a small pump: all comfortable. Anything with a heating element or a compressor: pick something else on this page.
Why the cycle rating matters more here than in bigger classes
Units this size get cycled hard, because they are small enough that you empty them. The 6,000-cycle rating is the standout specification: at one full cycle a day that is about 16.4 years, against 8.2 years for the 3,000-cycle RIVER 2 Pro and 11.0 years for the 4,000-cycle Explorer 300. One honest caveat: the two rivals publish their cycle counts to a stated retention point, 80% and 70%, and this specification names none, so the gap is directional rather than exact.
Multiply capacity by cycles and the gap gets clearer still. 512Wh across 6,000 cycles is roughly 3,072 kilowatt-hours of energy through the pack over its rated life. The RIVER 2 Pro holds 256Wh more per charge and still lands at about 2,304 kilowatt-hours, because it is rated for half the cycles.
Who should choose something else
Anyone whose load list includes a kettle, a coffee maker or a fridge. Anyone who wants more than two mains sockets. And anyone carrying the unit on foot for any distance, where the Explorer 300 saves 5.5 lb for 220Wh less.
Everyone else buying in this bracket is buying it for a steady, modest, overnight load, and this is the unit built for exactly that.
- Best for
- Overnight duty on a steady low-wattage load such as a CPAP machine, a router and modem, or a desk full of electronics that must not reboot.
- Choose something else if
- Anything you plan to plug in draws more than about 450W continuously, which rules out kettles, coffee makers, microwaves and full-size refrigerators.
Best for keeping a whole campsite of devices charged
EcoFlow RIVER 2 Pro
EcoFlow
Breadth is what this one sells. Its 768Wh sits at the top edge of the bracket and goes on 11 outlets and the lightest chassis per watt-hour on the page, not on a bigger inverter. Two things temper that: the shortest rated pack life of the three units here that publish one, and no switchover time at all.
What we like about the EcoFlow RIVER 2 Pro
- 768Wh in 18.2 lb is 42.2Wh per pound, the best ratio of the four units compared here
- 11 outlets total means phones, lights, a laptop and a cooler all run off one box without a splitter
- Recharges the full 768Wh in a quoted 70 minutes, about 11.0Wh returned per minute, the fastest absolute refill rate here
- The 800W inverter is 300W above the Jackery Explorer 500 v2, which brings larger fans, a projector and a full desk of AC electronics into range at once
- 220W solar input allows an unattended refill during a day parked up, roughly 3.5 hours at the full ceiling
Where it falls short for the EcoFlow RIVER 2 Pro
- Rated at 3,000 cycles to 80%, half the Jackery Explorer 500 v2 rating, which is about 8.2 years at one full cycle a day against 16.4
- The 800W ceiling still sits under a kettle, a coffee maker or a fridge compressor at start-up, so the extra 300W over the Jackery Explorer 500 v2 buys headroom rather than a new class of appliance
- No UPS switchover time is published, so it cannot be trusted to keep a desktop or a NAS alive through a mains cut
- The 220W solar ceiling is the lower of the two published here, so adding panels beyond that ceiling returns nothing
Key specifications
- Capacity
- 768Wh
- AC output
- 800W
- Weight
- 18.2 lb (8.3 kg)
- AC recharge time
- 70 minutes to full
- Max solar input
- 220W
- Ports
- 11 outlets total
Most people shopping at 500Wh are not trying to run one big thing. They are trying to run six small things at once, all weekend, without a tangle of splitters. That is the job this unit is built for.
Watt-hours per pound, because this one gets carried
Weight quoted on its own tells you nothing useful. Divided into capacity it tells you everything:
- EcoFlow RIVER 2 Pro: 42.2Wh per pound
- Jackery Explorer 300: 41.1Wh per pound
- Jackery Explorer 500 v2: 40.6Wh per pound
- Anker SOLIX C800X: 32.0Wh per pound
The comparison that matters is against the C800X, which holds exactly the same 768Wh. The RIVER 2 Pro gets there in 18.2 lb rather than 24.0 lb. That is 5.8 lb saved for identical stored energy, every time it goes in or out of a boot.
What 11 outlets changes
The reason a small unit runs out of usefulness is rarely the battery. It is that three people want to charge things and there are two sockets. Eleven outlets covers a phone, a camera, a laptop, a light string, a fan and a 12V cooler simultaneously, and the 800W inverter has enough room to carry that whole list at once.
Do the arithmetic on that list. Six devices averaging 30W each is 180W. Against 768Wh with about 15% allowed for conversion loss, that is roughly 653Wh usable, or about 3.6 hours. Cut the load to a realistic overnight average of 60W and it stretches to about 10.9 hours.
Where it gives ground
The cycle rating. 3,000 cycles to 80% is the shortest rated life on this page, and it is worth converting: at one full cycle a day that is about 8.2 years, where the Explorer 500 v2 reaches about 16.4. Multiply capacity by cycles and this unit delivers roughly 2,304 kilowatt-hours over its rated life against the Jackery’s 3,072, despite holding 256Wh more each time you fill it.
If the unit gets cycled a few times a month, that gap never becomes real. If it gets emptied daily, it is the most important number in this review.
The second gap is switchover. No figure is published, so this is not the unit to buy if the plan is to leave it inline with a home office.
Who it suits
The person whose 500Wh purchase is about breadth rather than depth: many small loads, carried often, refilled from a wall socket in an hour or from panels over an afternoon.
- Best for
- Campsites, tailgates and van weekends where six or eight small devices need charging at once and the unit gets lifted in and out of a vehicle daily.
- Choose something else if
- The unit will sit under a desk as a battery backup, because no switchover time is published and a desktop may still restart when the mains drops.
Best for kettles, coffee makers and power tools
Anker SOLIX C800X
Anker
The C800X is the only unit in this bracket with an inverter large enough to boil water or run a corded tool, which is a genuinely different capability rather than a bigger number. It pays for that with the heaviest chassis and the worst energy-to-weight ratio of the four.
What we like about the Anker SOLIX C800X
- The 1200W inverter is 400W above the next unit here and 700W above the Jackery Explorer 500 v2, which brings kettles, coffee makers and corded tools into range
- SurgePad lifts the ceiling to 1600W, enough headroom that a tool starting is not a coin toss
- 768Wh is the joint-largest pack here and covers a 150W refrigerator for roughly 4.4 hours after conversion losses
- 300W solar input is the highest published on this page and refills the full 768Wh in about 2.6 hours at the ceiling
- 10 ports spread the load without a splitter
Where it falls short for the Anker SOLIX C800X
- At 24.0 lb for 768Wh this is 32.0Wh per pound against 42.2 on the EcoFlow RIVER 2 Pro, which holds exactly the same energy in 5.8 lb less
- Running at its own 1200W rating empties the 768Wh pack in about 38 minutes, the shortest full-output runtime here, so the big inverter buys capability rather than duration
- No cycle life and no battery chemistry appear in the published specification, so pack longevity cannot be lined up against the 6,000-cycle Jackery or the 3,000-cycle EcoFlow
- The published dimensions work out at roughly 1,174 cubic inches, close to double the 613 of the Jackery Explorer 500 v2, so it takes real shelf or footwell space
- No recharge time is published, which makes it the one unit here you cannot rank on refill speed
Key specifications
- Capacity
- 768Wh
- AC output
- 1200W (1600W SurgePad)
- Weight
- 24.0 lb (10.9 kg)
- Max solar input
- 300W
- Ports
- 10 total
- Warranty
- 5 years
Every other unit in this bracket asks you to accept that heating elements are out of scope. This one does not, and that single difference is why it is on the page.
What 1200W adds that 800W does not
A travel kettle, a filter coffee maker, a heat gun, a corded drill and a full-size fridge compressor all sit above 800W at some point in their cycle. The 1200W continuous rating clears them, and SurgePad lifting to 1600W leaves margin for the moment a motor starts rather than the moment it settles.
This is a capability line, not a gradient. Below it those appliances simply do not run. Above it they do.
The duration you buy with that capability
Now the honest half. Divide the pack by the inverter rating:
- Anker SOLIX C800X: 768Wh at 1200W, about 38 minutes
- EcoFlow RIVER 2 Pro: 768Wh at 800W, about 58 minutes
- Jackery Explorer 500 v2: 512Wh at 500W, about 61 minutes
- Jackery Explorer 300: 292Wh at 300W, about 58 minutes
The unit with the biggest inverter has the shortest full-output runtime on the page. That is not a fault, it is arithmetic: a bigger tap empties the same tank faster. Allow roughly 15% for conversion loss, a planning assumption rather than a measured figure, and take that 15% off each number again.
So a 1000W coffee maker gets about 39 minutes of continuous operation from a full charge. That is several pots, and it is nowhere near a morning of constant use. Plan in bursts.
The weight and space you pay
768Wh in 24.0 lb is 32.0Wh per pound. The RIVER 2 Pro holds the identical 768Wh in 18.2 lb, or 42.2Wh per pound. You are carrying 5.8 lb of extra hardware for zero extra stored energy, and what it returns is 400W more output.
Footprint follows the same pattern. Multiply the published dimensions out and this unit occupies roughly 1,174 cubic inches against 613 for the Jackery Explorer 500 v2. In a van locker or a truck footwell that is a real constraint.
Who should skip it
Anyone whose load list tops out at a laptop, lights and phones. That reader is buying a large inverter they will never use, then carrying it. Two of the other three picks here do that job in less weight and less space.
- Best for
- Camp kitchens, work benches and job-site corners where something with a heating element or a motor has to run for short bursts rather than all night.
- Choose something else if
- You carry the unit any real distance on foot, where 24.0 lb for the same 768Wh as an 18.2 lb rival is a poor trade.
Best for one-hand carry and day trips
Jackery Explorer 300
Jackery
At 7.1 lb the Explorer 300 is the unit you actually take with you rather than the one you mean to. It sits at the bottom edge of this bracket, holds 292Wh, and earns its place by being the only pick here that can be carried in one hand alongside a bag.
What we like about the Jackery Explorer 300
- 7.1 lb is 5.5 lb lighter than the Jackery Explorer 500 v2 and 16.9 lb lighter than the Anker SOLIX C800X
- 292Wh in 7.1 lb is 41.1Wh per pound, second only to the EcoFlow RIVER 2 Pro on this page
- A 100W USB-C Power Delivery port charges a laptop on the DC path, so the inverter never has to run for the most common load
- Rated for over 4,000 cycles to 70%, roughly 11.0 years at one full cycle a day
- The published dimensions come to about 369 cubic inches, which is a shelf or a rucksack side pocket rather than a floor space
Where it falls short for the Jackery Explorer 300
- 292Wh is 220Wh below the Jackery Explorer 500 v2, a 43% smaller pack, so an overnight CPAP at 40W lands at about 6.2 hours rather than a comfortable full night
- The 300W inverter is the smallest here and rules out anything with a heating element or a compressor, including every refrigerator in normal use
- The warranty is published as 2 years against 5 years on the other three units in this comparison
- No recharge time appears in the published specification, so refill speed cannot be compared against the units quoting 52 and 70 minutes
Key specifications
- Capacity
- 292Wh
- AC output
- 300W (600W peak surge)
- Weight
- 7.1 lb (3.2 kg)
- Ports
- 6 total, 2 AC outlets, 1 USB-C PD 100W, 2 USB-A, 1 car port 120W
- Rated cycle life
- Over 4,000 cycles to 70%
- Warranty
- 2 year manufacturer
This is the smallest unit on the page and the one most people shopping at 500Wh should at least consider, because a large share of them are buying capacity they will carry and never use.
The weight argument, with numbers
Put the shortlist in order and the spread is dramatic for a bracket that looks narrow on paper:
- Jackery Explorer 300: 7.1 lb
- Jackery Explorer 500 v2: 12.6 lb
- EcoFlow RIVER 2 Pro: 18.2 lb
- Anker SOLIX C800X: 24.0 lb
The heaviest unit here is 3.4 times the weight of the lightest. Against the Explorer 500 v2 specifically, you give up 220Wh to save 5.5 lb, which works out at 40Wh surrendered for every pound you no longer carry. That is a shade above the four-unit average of 39.0Wh per pound, so the trade is fair rather than punitive: you are buying less energy, not worse energy.
What 292Wh really covers
Allow about 15% for inverter conversion loss on AC devices, a planning assumption rather than a measurement, and 292Wh delivers roughly 248Wh at the socket:
- A laptop at 60W: about 4.1 hours
- A camera charger and a phone at 25W combined: about 9.9 hours
- A 40W CPAP machine: about 6.2 hours, which is short of a full night
DC loads do better, because the inverter never runs. The 100W USB-C Power Delivery port covers most modern laptops directly, and on that path the same pack stretches noticeably further than the AC figures above.
The two specifications that mark it out as the entry point
The inverter first. 300W with a 600W peak is the smallest here, and it rules out kettles, coffee makers, microwaves, heaters, power tools and refrigerators completely. Not slowly, not inefficiently: they will not run.
The warranty second. Two years, against five on the other three picks. The pack is rated for over 4,000 cycles to 70%, which is about 11.0 years of daily cycling, so the cell rating and the warranty are telling different stories. That is worth knowing before treating this as a decade-long purchase.
Who it is for
The traveller, the photographer, the person working from a car or a hotel room. Loads are small, the unit moves constantly, and the difference between 7.1 lb and 12.6 lb decides whether it comes along at all. If it stays in one place, buy one of the larger picks instead.
- Best for
- Day trips, photography sessions and hotel-room work where laptops, cameras and phones are the entire load and the unit is carried rather than wheeled.
- Choose something else if
- You want the unit to cover a full night of medical equipment or run anything with a heating element, because 292Wh and 300W both fall short.
How we researched this guide
Four units spanning the 500Wh bracket were compared using published manufacturer specifications, then set against each other using arithmetic derived from those figures: watt-hours per pound, runtime at stated loads, full-output runtime, watt-hours returned per minute of charging, and capacity multiplied by rated cycle life. None of these units were tested by us, and every review names the sources behind its recommendation.
The full process is on our how we test portable power stations page, including what counts as hands-on use.
- Units evaluated
- 4
- Used hands-on
- 0
- Assessed from documentation and owner reports
- 4
Evaluation methods used: specification comparison
Which one should you buy?
Match your situation on the left to the recommendation on the right.
-
You need a CPAP machine or a router to run all night without interruption
Recommendation: Buy the Jackery Explorer 500 v2 for its 10ms switchover and roughly 10.9 hours at a 40W draw
-
You want to boil water, brew coffee or run a corded tool
Recommendation: Buy the Anker SOLIX C800X, the only unit here with a 1200W continuous inverter
-
Six or eight small devices need charging at once at a campsite
Recommendation: Buy the EcoFlow RIVER 2 Pro for its 11 outlets and 768Wh behind an 800W inverter
-
You carry the unit on foot or in a bag rather than in a vehicle
Recommendation: Buy the Jackery Explorer 300 at 7.1 lb, which is 5.5 lb under the next lightest pick
-
The unit will be emptied and refilled almost every day for years
Recommendation: Buy the Jackery Explorer 500 v2 for its 6,000-cycle rating, about 16.4 years at one full cycle a day
-
You want to run a full-size refrigerator through a power cut
Recommendation: Skip this bracket entirely and buy a 1000Wh class unit with an inverter of at least 1500W
Mistakes buyers make
- Buying on capacity when the failure that actually happens is a 300W or 500W inverter refusing to start the appliance at all
- Reading a surge rating such as 1000W or 600W peak as a second continuous rating, when it only covers a fraction of a second at start-up
- Planning runtime straight from the rated watt-hours without allowing for the conversion loss between the pack and the AC socket
- Assuming a 500Wh unit will carry a refrigerator through an outage, when the honest figure is about three to four and a half hours if the inverter starts it at all
- Comparing recharge claims quoted to different end points, so 52 minutes to 80% looks faster than 70 minutes to full when it returns less energy per minute
- Choosing the heaviest unit in the bracket for a job that involves carrying it, then leaving it at home
Our final recommendation
If you want one answer rather than a shortlist, this is the unit that suits the widest range of readers in this category.
Best for overnight CPAP and router backup
Overnight duty on a steady low-wattage load such as a CPAP machine, a router and modem, or a desk full of electronics that must not reboot.
Questions buyers ask
What can a 500Wh portable power station actually run?
Electronics, lighting, fans, cameras, laptops, a CPAP machine and small pumps. What it cannot run is anything with a heating element or a compressor, unless you buy the 1200W Anker SOLIX C800X. On the 300W and 500W units in this guide a kettle, a coffee maker, a microwave and a fridge are all out of scope, and that is a limit of the inverter rather than the battery.
How many phone charges is 500Wh?
A modern phone battery holds roughly 15Wh to 20Wh. Allow about 15% for conversion loss on a 512Wh unit and you have around 435Wh at the socket, which is roughly 22 to 29 full charges. Charging a phone is one of the few jobs where this size genuinely lasts a long weekend for a whole group.
Can a 500Wh power station run a refrigerator?
Rarely, and not for long. A full-size fridge averages about 150W across its duty cycle but pulls several times that as the compressor starts, which is what trips a 300W or 500W inverter. Even on the 768Wh units here the honest figure is about four and a half hours after conversion losses. If a fridge is the reason you are buying, this is the wrong bracket.
Is 500Wh enough for a weekend of camping?
For phones, lights, a speaker and a camera, comfortably. For a 12V cooler running continuously, no. A cooler drawing 45W averaged across its cycle needs about 1080Wh a day, which is more than any unit on this page holds. Either add solar input or accept that the cooler is the one thing you leave out.
Should I buy 500Wh or step up to 1000Wh?
Step up if any load exceeds about 800W, if you want a refrigerator covered, or if you need more than about six hours at 100W. Stay at 500Wh if the unit gets carried, because the lightest pick here is 7.1 lb against roughly 24 to 28 lb for the 1000Wh class units we cover. Weight is the only real reason to stay small, and it is a good one.
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