The answer they gave relates to the question/issue I asked about battery drain and need for removal to reset the laptop. They didn’t go into any detail about what causes the issue exactly.
The link they gave takes you to a page with bios v 3.07 and a description that the issue of battery drain is resolved with v 3.07. v3.08 is still in beta, not officially released.
There is more here: Laptop Not Powering on With BIOS 3.07