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Can we talk about how my $25 '100W' cable only pushed 18W and I trusted the listing like a chump
Bought a braided USB-C cable off a random listing for $25 because the page screamed 100W and 10Gbps in giant letters. Plugged my laptop in and it charged at a crawl, so I grabbed my inline watt meter and watched it sit at 18W with the voltage sagging to 19.3V under load. Turns out the thing had no e-marker chip at all, which means the laptop and charger were both playing it safe and never asking for more. Lesson learned: if a cable does not say 5A 100W and name the e-marker, treat the specs as fan fiction. What is your go-to test for spotting a fake cable before it wastes your return window?
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thead4422d ago
The 19.3V under load is the tell right there, that sag says the copper is thin and there is zero chip talking to your charger. I got burned the same way last year with a 6 foot cable off one of those flash sale apps, advertised as 240W and it would not even hold 45W on my meter. Now the first thing I do is plug it into my Klein USB tester with a 100W load and watch the volts, if it drops below 20 I send it back the same day. Anything under about $15 for a real 5A 100W cable is a red flag too, good copper and a real e-marker chip cost money. My rule now is simple, if the listing does not print the chip model or say 5A in the specs, I do not care how pretty the braid looks.
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