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Iuliohtoday at 8:04 AM7 repliesview on HN

Eh.

A lot of laptops won't accept less than 60w

My work laptop won't accept less than 90w (A modern HP, i7 155h with a random low end GPU)

At first everyone at the office just assumed that the USB C wasn't able to charge the pc


Replies

javawizardtoday at 8:52 AM

I gotta say, I love my macbooks. Every Apple laptop I've owned that has USB-C ports will happily charge itself from a 5V/1.5A wall charger (albeit extremely slowly).

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tjofftoday at 9:25 AM

They probably require higher voltages but I havent seen one myself. I usually just charge y laptop with my phone charger, what is it, 18 watts? Don't care, charges my laptop and the phone that is plugged into it overnight. Why charge at faster speeds when there is no need to

Laptop charges fine regular 5V as well.

folmartoday at 10:58 AM

My Thinkpad T490 will happily take any power provided voltage is high enough (15V+).

spockztoday at 8:28 AM

Great. So we got EU laws to mandate USB-C chargers and then get manufacturers that flaunt the spirit of the law by rejecting lower wattages.

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lostlogintoday at 8:58 AM

A Mac mini at home used 4.64w averaged over the last 30 days. Even under load it just sips power.

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_blktoday at 9:23 AM

The issue might not be the wattage bit rather the minimum voltage. (Some?) Macs seems to charge at 15v already, most laptops need 20v

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izacustoday at 10:22 AM

Most laptops will take 45W. There might be some workstations that don't, but even gaming stuff with 5080s will charge on 45W.