Don't forget the small cleaning heads that cordless usually have. That's going to add a significant amount of time to the job. Then when you have ones that leave an uncleaned strip in the middle of the cleaning path, forcing you to overlap by over 50%, that plus the already small head is going to more than double the cleaning time.
The horrible truth about central vacuum systems and why every non-Canadian millennial hates them.
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cheesewonton
Well-known member
Then when you have ones that leave an uncleaned strip in the middle of the cleaning path, forcing you to overlap by over 50%,
Kirby : /
Kirby : /
Absolute Rainbow
Well-known member
Agitations matter, because of piles. Carpeting cleaning is emphasized by the likes of @Vacuum Facts, and such agitation must be ideal - enough to help lift the piles (already covered by actual bristles separating said piles), but not too aggressive so larger stuffs almost-near the cleaning head bounces off, like Kirby. Pass your machine slowly and overlap properly (account for any unswept strip too), and you get the best possible deep cleaning performance in your own vacuums, and everyone knows that.
Samsung Bespoke Jet Ultra proves that only corded machines are limited by EU down to 900W (formerly 1600W), but it doesn't matter because it's possible to design something that performs really well for hardly much power consumption. Dyson is a master in that regards, from the pioneering V10 to the popular V15 and Gen5, the crippled V16, the small (and technically weak) V12, and even the pre-revolution DC35, V6, V7, and etc. etc., all have been designed to consume relatively minimal amount of power and energy and rely on their very, very advanced design themselves for ultimate cleaning performance - that has been applied to even their later corded machines too. Low airwatts still have the potential to clean extraordinarily well (the airwatts are as @Vacuum Facts himself said, measures above-floor cleaning potential, and not the direct on-floor performance), and low-wattage for sufficient airwatts even more so. You just have to make a lot of proper R&D and uniquely patented that works well, like Dyson did for the past over-30 years. This is not a joke and not a fanboy's words - this is my own thoughts, and I chose to agree with @Vacuum Facts by my own volition.
@cheesewonton, those "toy" were primarily held back by their li-ion batteries. @Vacuum Facts said and know solid-state batteries are coming, and once Dyson starts using those, their future cordless will be transcended with vastly longer battery life to better cope with actual whole-home cleaning you demanded for, while keeping all the versatility. The motor is now advanced enough to do the job, but is held down by the chemical li-ion, and the solid-state ones can possibly allows the Eco mode to get the airwatts of literal corded machines, the Auto/Med to have old Boost performance for roughly old Eco level of runtime, and the new Boost mode to simultaneously continues increasing airwatts and approaching the runtime of old Auto/Med. @Vacuum Facts estimated that a two-fold increase in runtime at iso-performance over whatever the last is equipped with ordinary chemicals (the currently crippled V16 is the current latest, by the way) is the minimum. So if you think those cordless aren't up to snuff, wait until somebody (most likely Dyson, because they're the first to do R&D for vacuums like these) launches a flagship vacuum (akin to V15, Gen5 (should've been named V15 Advanced) and V16) with solid-state battery.
@Hatsuwr, I only wholeheartedly agree with the size of cordless heads. At 10 inches at the largest (smaller machines may have smaller heads), they looks kinda small. There exists 13-ish inches cleaner heads in cordless, but these are for the Outsize models (currently the V11 and the Gen5, the latter of which should've been named V15 Outsize in this case) which are larger (and have a spare battery in the box as standard), and only through the brush bar (Digital Motorbar (XL)). Why are most cordless cleaner head so small?
You answered your question earlier in your comment. Cordless cleaner heads are small because of their limited power budget to work with. All else equal, a larger head needs more power to achieve the same air speeds at the cleaning interface.
To get the same level of vaguely defined cleaning performance with a lower power level (assuming similar designs), you need a smaller head or longer dwell time.
cheesewonton
Well-known member
@Vacuum Facts said and know solid-state batteries are coming, and once Dyson starts using those, their future cordless will be transcended with vastly longer battery life to better cope with actual whole-home cleaning you demanded for, while keeping all the versatility.
Well we all know if vacuumfacts said it then it has to be true........................or not.
Solid state batteries have been, like, ready to show up in home appliances since the 20-teens. Every year a new set of breathless pronouncements but no hardware on the market. I guess it's not vaporware but the tech is still prototype, there are multiple chemistries and manufacturing processes are still being tested and the cost is still very high. Meanwhile cheaper technologies like lithium iron phosphate ( LFP ) keep making 20% improvements in energy density while offering the same or better safety advantages advertised for SSBs. Note that SSBs can still experience thermal runaway and dendrite formation, just not as easily as Li batteries can. LFP at least cannot experience thermal runaway. I'll wait and see when actual SSB show up in power tools and home appliances like vacuums to judge their actual performance against their corded competitors.
Well we all know if vacuumfacts said it then it has to be true........................or not.
Solid state batteries have been, like, ready to show up in home appliances since the 20-teens. Every year a new set of breathless pronouncements but no hardware on the market. I guess it's not vaporware but the tech is still prototype, there are multiple chemistries and manufacturing processes are still being tested and the cost is still very high. Meanwhile cheaper technologies like lithium iron phosphate ( LFP ) keep making 20% improvements in energy density while offering the same or better safety advantages advertised for SSBs. Note that SSBs can still experience thermal runaway and dendrite formation, just not as easily as Li batteries can. LFP at least cannot experience thermal runaway. I'll wait and see when actual SSB show up in power tools and home appliances like vacuums to judge their actual performance against their corded competitors.
Absolute Rainbow
Well-known member
Thanks for answering without admitting it, @Hatsuwr. Appreciate both your honesty and your hypocrisy.
Absolute Rainbow
Well-known member
Solid-state batteries are LiFePO4 on steroids, bro.
Thanks for answering without admitting it, @Hatsuwr. Appreciate both your honesty and your hypocrisy.
This is such a confusing reply lol. I don't even know what you are trying to say. You asked a question and I answered it — is there something else going on here for you?
Absolute Rainbow
Well-known member
I think you need to take a break man, you are just looking for ways to get upset and offended at this point.
