2 ms·And in 15 years the batteries will inevitably be much less expensive than they are today.by tempestn 10y agoAnd in 15 years the batteries will inevitably be much less expensive than they are today._asummers 10y agoAnd hopefully much more powerful, extending THAT purchase even further.Roboprog 10y agoI wouldn't count on getting much more kWh into lithium. But the batteries probably will degrade slower in the future.