On Wed, 6 Nov 2019 14:29:47 +0000, Mike_Duffy
wrote:

On Wed, 6 Nov 2019 08:47:56 -0500, Wade Garrett wrote:

If the battery is removable, pull it...then just leave the laptop
plugged in.

My experience with Li-ion batteries (the vast majority nowadays) is that if
they are cooled much below freezing and then connected to a power drain,
they will be immediately damaged permanently.

So yes, pull the battery and keep it in your house, not the garage.
"damaged permanently" is not EXACTLY true - but a close description.
The battery management circuitry is designed to permantly disconnect
cells from the load if the voltage drops below a particular threshold
(where cell reversal can happen?) and when too cold the cells can not
produce enough power to keep the voltage above that threshold under
load. The cells themselves are not damaged - as I have proven in the
past be dissassembling the battery and charging the cells DIRECTLY -
bypassing the battery management or battery protection module. When
the battery (cell)is fully charged some battery management modules
revert to functional - some do not - but the cell itself is GENERALLY
not harmed.