Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Notifications
Mark all as read
Q&A

How can I command my Lenovo laptop — NOT a ThinkPad — to stop charging the battery, at a maximum cap level of my choice?

+1
−4

Update, after Olin Lathrop's answer.

I phoned Lenovo Technical Support to ask why the "Battery Charge Threshold" in Olin Lathrop's answer doesn't appear in my Lenovo Vantage. Their engineer accessed my laptop remotely, confirmed that "Battery Charge Threshold" (henceforward BCT) doesn't befit my model because BCT is available merely for ThinkPads. Then I asked — why on earth can't BCT be universalized to all Lenovo laptops???

She escalated to her supervisor who didn't know the reason. He concluded that he will escalate my request to Lenovo's engineers, but he can't promise any changes that shall take at least 6 months.

What — (preferably) free — programs can I use instead? What 3rd party programs automatically stop my laptop's battery from charging, at a percentage that I pick?

Battery Limiter doesn't answer my question, because it requires you to "manually unplug or plug the power cord into the laptop."

Original question

Other brands like Asus allow you to pick your own maximum battery level, like 80% or 50%. But my Lenovo laptop — that's NOT a ThinkPad — doesn't, and proffers just 55-60%.

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.

Why does this post require moderator attention?
You might want to add some details to your flag.
Why should this post be closed?

2 comment threads

x-post https://solveforum.com/forums/threads/how-can-i-command-my-lenovo-laptop-to-stop-charging-the-... (5 comments)
Answer to updated question (1 comment)

1 answer

+5
−0

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.


Can you please clarify if your Lenovo is a ThinkPad?

Yes, it's a ThinkPad.

Why does this post require moderator attention?
You might want to add some details to your flag.

2 comment threads

A bit more background information why #2 is the correct answer: https://superuser.com/a/1529891/38339... (1 comment)
Possibility #3: using a smart plug to switch off the charger https://www.reddit.com/r/homeassistant/c... (1 comment)

Sign up to answer this question »

This community is part of the Codidact network. We have other communities too — take a look!

You can also join us in chat!

Want to advertise this community? Use our templates!

Like what we're doing? Support us! Donate