Battery Disconnect Usage

So I know that in the BIOS you can enable a battery disconnect option which is meant as a convenient alternative to unplugging the battery when working on the device. I was wondering if this could be used in situations where you expect the laptop to be plugged in at a desk for long periods of time to avoid putting stress on the battery. If so is there a way to enable it beyond just doing it in BIOS when turning the computer on?


It will save if you enable battery disconnect, do not have a unit to confirm it. Using it at a desk is the intended purpose. My brothers laptop had the battery inflate and crack the battery casing from charging while using it.

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Sadly Josh is wrong. I agree it would be a useful feature (along with battery charge level control) but the battery disconnect is only available for the immediate boot after setting it in BIOS. It does not remember. In fact, I think it might be disabled the moment that it receives new charging input signal.

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Ah, yep I do know some PC BIOS settings does not save, would’ve wished it would work like that.

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From what I read somewhere else, it seems like the disconnect setting resets itself every time when AC power is plugged in. So that’s a bit of a bummer but I can see what it is the case. I agree with everyone’s comment though, this should be a setting that can be saved/memorized by the bios.

EDIT: Here is what I just tried. I have my laptop (running 3.03 BIOS) connected to the power. The machine is powered down (running Windows 11) completely (not that hyper-sleep crap). I rebooted the machine and went straight to the BIOS, enabled Battery Disconnect, save and exit. The laptop shuts down again (I think it is expected behavior but strange it didn’t just reboot itself). I powered the laptop back on, logged into windows and strangely now the laptop is solely running on battery power?? What am I missing here. Did I do anything wrong in the steps to enable the Battery Disconnect option? It doesn’t seem like it is working the way it was intended to at all.

@Matrix1999 If you unplug the laptop, trigger Battery Disconnect, then wait 20-30 seconds, are you able to turn the laptop on?

If it’s working as intended, it should not turn on.

Right but that’s not my point of using it. All I want Battery Disconnect is so that when I am in the office, I want the laptop to use the power straight from the USB-C and have the battery disconnected. That is how I understand what people would use it for. If this has another use case for it, then I’d like to know what it would be.

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Is there any update on this?
If its not possible right now will that change?