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Q&A

How can I command my Lenovo laptop to stop charging the battery at a maximum cap of my choice?

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Other laptop brands like Asus allow you multiple choices of the maximum battery level when your battery stops charging, like 80% or 50%. But my Lenovo laptop doesn't, and proffers just 55-60%.

How can I enjoin my Lenovo laptop to stop charging

  1. when the battery attains 80% of my choice?

  2. at a maximum cap of my choice?

BU-808: How to Prolong Lithium-based Batteries - Battery University

To make this feature user-friendly, a device should feature a “Long Life” mode that keeps the battery at 4.05V/cell and offers a SoC of about 80 percent.

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1 answer

+4
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Two possbilities:

  1. A firmware upgrade supports this feature.
  2. You can't.

I also have a Lenovo laptop, purchased in 2018, and it does allow me to set the limit to charge to. Here is a screen shot of the Lenovo Vantage program:

I leave mine set to 70% except when traveling where I might rely on the battery for long times. In that case, I disable this feature, then return it to 70% when I get home.

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