ThinkPad P1 can be charged over USB-C
Just plugged in the 87W adapter from a MacBook Pro user. Both ports work for charging.
Posted Sep 14, 2018, 6:04 PM UTC · edited
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Could you please screenshot https://www.nirsoft.net/utils/battery_information_view.html for us? As with every nirsoft product, it doesn't require install.
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Awesome! Thank you for testing this :)
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Sorry... ...87 watt adaptor?
87 watts? Not 86, or 88?
Can someone with expertise in this area please explain (like I'm five) why a 90 watt or 100 watt adaptor wouldn't have done Apple's job?
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My guess it's a mix between the max power of the machine/model, cheapness/size of the power charger, and publicity (we are chatting about how weird apple's 61W and 87W chargers are ;)
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Does anyone know if the X1E can be charged from USB-C?
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Its pretty much the same model, just with different options, so most likely yes.
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WELL THEN, that would be pretty great! Mostly I'm interested in using a battery pack with it. Also being able to charge from USB-C will be great when random people are carrying USB-C chargers.
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Not all USB C laptops will take in random USB C bricks. The XPS15 will only charge with a minimum of 65w power delivered if I'm not wrong. Further testing will be required for the X1P1 to see what's the minimum wattage they take over USB PD.
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That Dell power bank is $130 and I can't figure out how much actual energy it stores. I guess that I would pay a this-is-probably-the-only-thing-you-can-use premium for it but it would be nice if it wasn't so obscure. No real reviews, honest tech specs, etc.
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Does the 87W adapter charge the battery at positive rate when you stress the P1 under heavy load, such like running prime95 + furmark?
Of course not, if they ship it with a 135W adapter. They'd ship it with a 90W charger if that was enough under any workload.
Even the 15" MBP will lose power while plugged in if you put it under full load.
But now I'm wondering if you can charge it from two ports simultaneously to prevent that.
And would you be able to prevent it by plugging it into an eGPU so that the on-board GPU goes unused?
Lenovo is not Apple. And it goes both ways. I don't think it can charge from both ports, that would be overengineered too much for what... Why would you do that, anyway?
Yeah, my point was just that if the MacBook Pro 15, which draws less power overall, will drain battery while on the charger, than the ThinkPad P1 will definitely drain battery while on the same charger.
Even the 170W and 230W are options for the X1E at least.
What is the difference between the ThinkPad 170W AC Adapter Slim Tip and the one that comes with the laptop?
I do not think there's a new 170W adapter.
There's a new 135W however. It seems smaller but noone was able to locate a spec sheet or anyone selling it separately yet. I have videos and screenshots showing it's clearly different. Most adapters before this 135W had the cord exiting on the short side and taking a 90 degree turn with this elbow encased in plastic. This new 135W adapter has a grove on the longer side and the cord exit and the plastic protected part is straight and inside this grove. Dell used similar cord exits in the past but they were on the shorter side.
My post yesterday.
Just yesterday I did a rundown -- no way. CPU 45W, GPU 45W, m.2 disks can be 7W max, you have two SODIMM modules that's not zero either, of course you have the display too which especially at 4K consumes a lot.
Power conversion inefficiency, Wi-Fi...
Just install r/gentoo