I have a T450s that employs two batteries- an inside "Bridge battery," and a removable battery unit.
If I plug the unit in to charge from a drained state, it will first charge Battery 1 (the non removable Bridge Battery) to 80%, then charge the removable battery (designated "Battery 2" by the battery status indicator icon menu in the lower right corner) all the way to 100%.
When I use the laptop on battery power, it first drains the removable battery (bat. 2), before switching to the nonremovable one (bat. 1). Its intended function is so that I can swap removable batteries withoiut powering down.
Now I have noticed, if I plug my unit back in prior to letting the removable battery drain to 0%, it will first prioritize charging battery 1 (non removable) to 100%, THEN charging the removable battery 2. I do not want this- I would prefer that the non-removable battery never be charged passed 80% under any circumstance for the sake of preserving its longevity. (Lipo batteries tend to have the longest shelf life when maintaining a charge level between 60-80%).
While I have all the proper lenovo power management drivers installed, there appears to be no UI to access it and adjust how it operates, unlike the previous Ideapad I owned years ago.
Any help would be greatly appreciated, thanks!.
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FWIW i recently got an X1 extreme gen 1 4k 32gig lenovo refurb and IT has a lenovo battery application that will charge the internal battery to 80%.. i think i can change that level to whatever i wish but have not tried it.. yet..
so i rather imagine you should be able to make the changes you wish and if not now then probably later when lenovo updates the battery app..
Sysop - forum.thinkpads.com
She was not what you would call refined,
She was not what you would call unrefined,
She was the type of person who kept a parrot.
EDIT: Alright fellas, I found the answer on this thread (viewtopic.php?f=62&t=129438) -download the lenovo app from the windows app store; this gives the user a great deal of control over their system hardware settings. I was able to independently set battery charge protocols for both batteries through this app. I
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