Plenty of very definitive answers here - which I find a bit perplexing since every single search I’ve done on similar questions reveals either a myriad of junk info on popular sites, or references to very academic papers, the conclusions of which are anything but definitive. My conclusion therefore is that there is no definitive answer to the OP’s question.
A more honest, but unsatisfactory answer, would be “no one knows for sure, so charge it to 100% as little as possible and leave it there for as short as possible”.