Ok to remove built-in Lenovo laptop battery?

Megahertz · 19 Dec 2023

Try3 said:

My Lenovo loses 2% of its battery charge every day whilst shutdown.
I shut down by using

Code:

shutdown.exe /s /t 0 /f

Denis

You can replace shutdown.exe /s /t 0 by shutdown.exe /p

Callender · 20 Dec 2023

Callender said:

I always leave the charger plugged in and the battery meter currently reports 98% charged but as far as i can remember it's always 100% charged when I switch on if powered off overnight but with the charger plugged in.

You can try a full shut down by pressing and holding the Shift key on your keyboard while you click the "Shut Down" then see if the battery still discharges a few percent.

So I've just checked after an overnight shutdown and sure enough battery charge is 98%. I'd never noticed this before.

Ok to remove built-in Lenovo laptop battery?-battery.jpg

Delly10 · 20 Dec 2023

Try3 said:

Might I suggest only waiting one month?
If Lenovo support are correct then there'll still be charge left after one month but would not be after four.

I'll look forward to seeing your results.
Apart from the Lenovo I mentioned before, I don't have a computer that's off for long enough to do such tests.
[Apart from a Chuwi but it lies about its state of charge all the time - it constantly claims its battery has 150% of its design charge level.]

Merry Christmas,
Denis

Oh, and thanks for the rep.

If I understand what Lenovo support was saying correctly, they were talking about an internal battery that was still installed. There seem to be processes still going on in the laptop even when it's shut down. I even noticed that when it's shut down, I can press the space bar and then a battery symbol appears on the screen for about 3 seconds showing what the battery level is. I think I've even seen this pop up even when I don't press anything. By removing the battery, I should be able to prevent the depletion of the battery in storage. My Dell laptop's battery doesn't run down when not installed, but it's easily removable. I wish they all were.

Try3 · 20 Dec 2023

"I can press the space bar and then a battery symbol appears on the screen for about 3 seconds showing what the battery level is"

That's set or unset in the Bios.

Denis

Delly10 · 20 Dec 2023

Try3 said:

"I can press the space bar and then a battery symbol appears on the screen for about 3 seconds showing what the battery level is"

That's set or unset in the Bios.

Denis

I see.
Well, since I already went through the trouble of removing the battery, I'll just leave it out for now and then I'll probably reinstall it in a few months to see if it retained it's charge, then change the bios to make it stop draining the battery when shut down, and then wait awhile to see what happens (or doesn't happen). If all goes well at that time, I'll leave the battery installed.

Try3 · 20 Dec 2023

Delly10 said:

I'll probably reinstall it in a few months to see if it retained it's charge

Again, I think a single month would avoid being too late.
If "a few months" is too long then you'd have to repeat the experiment.

Delly10 said:

change the bios to make it stop draining the battery when shut down

There is no such Bios setting.

All the best,
And thanks for the rep,
Denis