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05-20-2019

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ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-05-20, 12:58 PM

It won't charge it when the laptop is plugged into the dock. The battery icon in the bottom right of the screen says "96% available (plugged in, not charging)." Anyone have any ideas?

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2136 Posts

12-13-2016

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Re: ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-05-20, 13:25 PM

Let it drain down under 90% and try again. Seeing that message at that level is by design to protect the battery.  If it fails at, say, 70%, but the charger that came with the computer works, then there may be an issue with the doc. But "96% plugged in, not charging" is normal.


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Re: ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-05-20, 13:29 PM

Did u try to charge separately? restarted? Perhaps the update is not installed on time. Or do as said above, good luck

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Re: ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-05-20, 13:45 PM

It’s never done this before at any power level, also won’t charge when AC adapter is plugged in. 

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Re: ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-05-20, 14:08 PM

Run the computer down to 80% and see if it happens at that point. 


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Re: ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-05-20, 14:38 PM

Will do, the battery doesn't seem to really be draining more than ~1% an hour, so it is at least getting some power to it I think. The IT department for the company I work at couldn't really figure it out either - updated bios and drivers, etc. Will respond if I get it working, thanks all.

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Re: ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-05-20, 14:53 PM

"Plugged in, not charging" above (I think) 95% is a battery-protection feature. Disconnect power and let it run down below 90%. Then connect the AC adapter (not the dock). It should show charging. If so, THEN reconnect the dock. 


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5 Posts

08-20-2019

SI

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Re: ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2019-08-20, 10:58 AM

First, try to hold down the power button for 10 seconds and then release it with your dock connected. This should fix the problem. If it doesn't try this:

 

I had to update BIOS and now it's working. From the BIOS update readme file:

 

https://pcsupport.lenovo.com/si/en/products/laptops-and-netbooks/thinkpad-edge-laptops/thinkpad-e590-type-20nb-20nc/downloads

 

CHANGES IN THIS RELEASE
Version 1.15

[Problem fixes]
- Fixed an issue that Dock charge to the system is 60W when USB-C Key attach to USB-C Gen2 Dock.

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1 Posts

02-26-2020

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  • Message 9 of 9

Re:ThinkPad USB-C Dock not charging ThinkPad T480s Laptop when connected. How to fix?

2020-02-26, 1:12 AM

Which power button do you mean? The dock or the laptop?

 

Thanks

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