Yeah, there's still much we don't know about each company's battery design since each has chosen different methods of battery management. I hope we don't see any practices of planned obsolescence in the battery that would prohibit a later replacement of the individual cells by a third party. But we do live in a litigious world. I remember being ticked off several years ago when I learned my inkjet printer had the replaceable cartridges that could not be refilled by the user because the on-board chipset would render it 'dead' for life if it ever got below a certain point.