Do all of your cables need THIS?
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Description
- Marques Brownlee thinks he can tweet about a USB-C cable that shows you the wattage of whatever thing you're plugged into and think that we're gonna do a shorter circuit on it? Well, we are. 90 watt power adapter here and I'm plugged into my Pixel 3. Seems like it wants to settle at 10 Watts, 13 Watts, oh 9.1. The laptop should make use of it a lot, right? 90 Watts? 44. But what if I use an 18 watt power adapter? 10, 14? It's kinda sketchy that this is an OEM product that's being rebranded by a ton of different companies, but it's kinda useful and it doesn't seem like it'll link your devices explode.
In this 35 second short, Marques Brownlee demonstrates a USB-C cable with an integrated power meter to reveal the actual power profile of devices as they are plugged in. He starts with a 90 watt power adapter connected to a Pixel 3, noting that the meter settles at around 9 to 13 watts depending on the device’s demand, and questions how the laptop or other devices would utilize the available power. He then compares with an 18 watt adapter to show how the readings shift, highlighting that the measured wattage depends on the device and its current power negotiation rather than simply the charger's rating. The segment points out that the cable appears to be an OEM product rebranded by multiple companies, which raises questions about consistency across brands, but the tone remains practical and curious rather than alarmist. Overall the video frames this tool as a useful accessory for understanding power delivery and the actual experience of charging different devices, rather than as a definitive safety critique. The takeaway emphasizes that wattage readings are context dependent, and that a power meter can illuminate how much power a given setup actually uses in real time, rather than relying solely on charger specifications.
Topics · technology · gadgets · usb-c · power_meter · cable · electronics · consumer_electronics · media_and_entertainment
Questions answered
- What does the USB-C power meter reveal about different chargers when used with the same device?
- It shows that actual power delivery depends on the device's power needs and the negotiating capabilities, not just the charger's maximum wattage.
- Why might a meter read lower wattage with some adapters?
- Because the device limits the draw based on its power profile and the charger-device negotiation, so even a high wattage charger may deliver less power.