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ThinkPad NotebooksThinkPad: T400 / T500 and newer T series Laptops
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  • Registered: ‎04-27-2018
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T470 Boot and sleep failure when second battery is plugged in.

2021-07-20, 17:03 PM

Second battery work and charges. However, laptop will not boot or come out of sleep if it is attached - powers up but screen is black. It plays a tune which the Lenovo app identifies as a display error.


Removing the second battery and the laptop boots and resumes just fine.


Any ideas?


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  • Registered: ‎08-02-2018
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  • Message 2 of 2

Re:T470 Boot and sleep failure when second battery is plugged in.

2021-07-20, 21:17 PM

Hello Willgarr!



Try uninstalling the battery driver on the device manager and restart the computer for the battery to reinstall itself.


Run the update through the Lenovo Vantage app and install all pending updates especially the BIOS and the power management driver.

Let us know how it goes.




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