WEBVTT

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continuing its march to take over the tech world usbc is getting an upgrade to

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handle up to 240 watts which is enough

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to power most of the gadgets you use every day

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it's an awesome feature but it's also a little confusing so let's break down how

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exactly this works what devices will use it and how to know if your electronics

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are compatible the main reason that the usb implementers forum wanted to bump

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the max power delivery from 100 watts to 240 watts is to get closer to a world of

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near universal charging for consumer electronics 100 watts is more than

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nearly any phone would need but as usb-c

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charging grill was more popular on laptops that 100 watt limit rules it out

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for higher powered machines such as gaming laptops and mobile workstations

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that designers and engineers use usbc can even be used to power laptop

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docks and monitors but that 100 watts again simply isn't enough for larger

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displays either that means the upgrade to 240 watts will be good news for a

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huge number of everyday people not just folks who have ever had a

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laptop charger break or go missing but also those who have had a hard time

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getting a new one in a pinch because of the huge number of incompatible charging

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tips out there i mean there are so called universal chargers with over a

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dozen interchangeable tips included and even those won't fit in every laptop ask

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me how i know that

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but what do you need to take advantage of this new standard

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well this is where it gets a little tricky

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you can't just send 240 watts of power down any old usbc cable part of the

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reason for this is that the new usb power delivery specification that allows

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for such high wattages works by bumping up the maximum voltage to 48 volts while

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keeping the 5 amps of current the same and if you remember from high school

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physics that volts times amps equals watts 48 times 5

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is 240. we'll tell you why voltage is important right after we thank jackery

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watt hour capacity and 1800 watt output rate allow up to seven devices to be

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plugged in simultaneously and it only takes four hours to recharge from zero

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percent off with code Linus tech tips so back to talking about power when you use

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higher and higher voltages you increase the risk of electrical arcing that can

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damage equipment now this isn't a big deal when connecting a cable or while

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it's plugged in but when you go to unplug it

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that's when arcing can cause a serious hazard

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this means that 241 usb-c cables have to

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be engineered differently so that cord you got three years ago

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isn't going to work the good news is that older usb-c cables are being

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deprecated or phased out but this is obviously going to take some time so

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what should you look for well the usb inflamers forum was nice enough to come

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out with official logos for cables that can support 240 watts of power which

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should make your search a little easier but be wary that you'll need to pay

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attention to determine the data transfer speeds of course the chargers themselves

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also need to support the new standard and there's an official logo for that

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too keep in mind these logos are probably going to be on the packaging

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and not on the cables themselves so don't go rooting around with a pile of

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bare cables or loose chargers in the bargain bin and expect whatever you pull

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out to work but if you don't see those logos anywhere remember that the usb

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implementers forum is officially referring to these cables and chargers

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as extended power range or epr

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so if you see these letters on a cable or charger that you're looking at

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you're probably good to go and of course the ports on the device you're actually

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trying to power need to support the new spec too so look out for usb power

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delivery 3.1 which is part of the usb type-c 2.1 spec

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just to make it all nice and confusing the spec is very new so don't expect to

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see tons of compatible cables chargers and laptops on the market just yet

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and there will be some devices that even this new usb revision won't be powerful

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enough to charge such as those really beefy tank-like

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gaming laptops that have multiple chargers they're not going to work with

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a single cable but as the usb-c standard becomes more and more capable the hope

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is that in the near future basically any contemporary corridor charger will power

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whatever portable gadget you have and full power usbc wall sockets might even

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become a common thing as a result until then though

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make your own labels thanks for watching like dislike check

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out some of our other videos maybe something on usb type c or charging or

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maybe um oh what's the gallium nitride that's

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cool and uh don't forget to comment below with video suggestions and uh

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subscribe and follow