Welcome to the Power Users community on Codidact!
Power Users is a Q&A site for questions about the usage of computer software and hardware. We are still a small site and would like to grow, so please consider joining our community. We are looking forward to your questions and answers; they are the building blocks of a repository of knowledge we are building together.
Comments on How can I command my Lenovo laptop — NOT a ThinkPad — to stop charging the battery, at a maximum cap level of my choice?
Parent
How can I command my Lenovo laptop — NOT a ThinkPad — to stop charging the battery, at a maximum cap level of my choice?
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.
Post
Two possbilities:
- A firmware upgrade supports this feature.
- 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.
2 comment threads