It appears that a Nintendo Switch will only charge at 0.5 A if it's not plugged in to a 15 V charger. The charger is definitely capable of 1.5 A or more. Does that sound right?
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Felix Urbasik (fell@ma.fellr.net)'s status on Sunday, 17-Dec-2023 22:19:48 JST Felix Urbasik -
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Felix Urbasik (fell@ma.fellr.net)'s status on Sunday, 17-Dec-2023 22:19:42 JST Felix Urbasik @ralim Oh, nevermind! It's charging at 1.45 A now, and it's also doing that when awake.
It seems like it's only negotiating the higher current when the kernel is active. Interesting.
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Ralim (ralim@fosstodon.org)'s status on Sunday, 17-Dec-2023 22:19:45 JST Ralim @fell
If memory serves me correctly it will only do more than 0.5A on a USB PD negotiated connection (aka via USB C-C cables everywhere).It looks like you're using an A->C cable which means it can't talk to the charger to find out what it supports.
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kaia (kaia@brotka.st)'s status on Sunday, 17-Dec-2023 22:20:34 JST kaia @fell I don't know how exactly this works, but isn't it negotiation stuff - depending on the highest level the battery and the device supports? -
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Felix Urbasik (fell@ma.fellr.net)'s status on Sunday, 17-Dec-2023 22:20:36 JST Felix Urbasik However, the Steam Deck seems to refuse to draw any more than 0.5A at 5V, even after boot. No good news for flights only offering USB-A ports for power. 😩
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Oblomov (oblomov@sociale.network)'s status on Tuesday, 19-Dec-2023 00:50:18 JST Oblomov @kaia @fell the two have to agree on a common amps/volts combination, so it's not that simple. I've had laptops that can draw 130W refuse to get more than 60W from a 100W charger.
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