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11-29-2019

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Lenovo Thinkpad T480 both batteries not charging

2019-11-29, 17:57 PM

Hello, I just bought a new Lenovo Thinkpad t480 and the second battery didn't charge at all.

 

I tried out something that the tech support forum here told me to do and now both batteries aren't charging instead. I heard it might have something to do with Windows 10.

 

Need help if I can get it settled before having to send the computer to the repair shop bc I can't afford 2 weeks without it right now.

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293 Posts

10-28-2016

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Re: Lenovo Thinkpad T480 both batteries not charging

2019-11-30, 14:01 PM

This fix has worked for myself and others.

There are several threads on this problem scattered around:

 

So, I can see no downside to trying this fix, it fixed my T480 with dual batteries:

 

 I may have some extra unnecessary steps in here, but I wanted to be sure I didn't screw it up:

  • Open the Device Manager by searching for it or right-clicking the Start button and selecting Device Manager.
  • Click Batteries on the list to expand it and you should see two items (maybe three items – if your machine is equipped with two batteries there may be two, but on my machine which does have two batteries only one was displayed) Anyway:
  • You will see: : Microsoft AC Adapter
  • And one or two  Microsoft ACPI-Compliant Control Method Battery (s)
  • Right-click on each item and choose Uninstall device. Yes, you are uninstalling your laptop's battery drivers, but don't worry because they will automatically be reinstalled when you restart your laptop.
  • Shut down your laptop.
  • Unplug the power cable from your laptop.
  • Power on the laptop (running on batteries now) and enter BIOS
  • Go to:  Config --> Power  -->  and select the option to “Disable built-in battery”
  • You will get a prompt that says the machine will power down if you continue.
  • Acknowledge the prompt  --> the machine shuts down.
  • If your laptop has a second removable battery, remove it.
  • Plug in the charger cable to your laptop, this puts the internal battery back on-line and powers up the system.
  • Let it stabilize at the desktop – if you want to check Device Manager you should now see the AC adapter and ONE battery (the internal battery, the 2nd battery is uninstalled and laying on your desk at this point).
  • Shut down the machine
  • unplug the charger cable
  • install the 2nd external battery, making sure it it latched and then locked in place.
  • plug the charger cable back in
  • power on the laptop and boot to the desktop
  • At this point my machine was fixed – both batteries and the AC adapter were registered in Device Manager, and both batteries once again showed up as separate line items in the Microsoft battery taskbar item and functioned properly.
If my post helps a Kudo is appreciated, if I answer your question, please mark it ”Accepted Solution“ and give it a Kudo! ... Some years ago I worked for IBM. Currently I do not work for, nor do I speak for Lenovo or IBM.
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3 Posts

11-29-2019

US

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23 Page Views

  • Posts: 3
  • Registered: ‎11-29-2019
  • Location: US
  • Views: 23
  • Message 3 of 3

Re: Lenovo Thinkpad T480 both batteries not charging

2019-11-30, 14:25 PM

Yeah, that's the one I did, and it went from one battery not charging to both my batteries not charging.

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