Not only have prices drastically dropped in the past few years, but they are expected to drop another few X in the next few years. https://electrek.co/2017/01/

Not only have prices drastically dropped in the past few years, but they are expected to drop another few X in the next few years. https://electrek.co/2017/01/30/electric-vehicle-battery-cost-dropped-80-6-years-227kwh-tesla-190kwh/ https://electrek.co/2017/01/30/electric-vehicle-battery-cost... https://cleantechnica.com/2018/06/09/100-kwh-tesla-battery-cells-this-year-100-kwh-tesla-battery-packs-in-2020/ https://cleantechnica.com/2018/06/09/100-kwh-tesla-battery-c... I think we'll reach $50/kWh well before 2025. That's also around the same time we should have a global production of about 800GWh-1TWh per year (bulk of that from Chinese factories), or about 20x the current production. Assuming an average battery size of 50kWh for an EV by then, even that capacity should only be enough for around -15-20 million EVs a year, or about 20-25% of the annual car sales. I may be a little optimistic here on battery size. It's possible many EVs will be super-cheap with 30kWh batteries, but we'll also see many more buses and trucks with 300+ kWh batteries. We'll need to go from 1TWh to 2 and 3TWh pretty quickly especially if we are to use batteries for utilities, too. Around the same time we should begin to see car makers start using the much safer solid state batteries in their EVs. These will be more expensive (probably not more than what Li-Ion batteries cost right now) and they will start shipping in $50,000+ EVs at first, but they will eventually trickle down just as Li-Ion batteries have and will. What I want to know is why do smartphone manufacturers think it's okay to sell $800 phones with 3,000 mAh batteries about four years after shipping them for the first time on the market. They did exactly the same thing with storage. They kept 16GB as default for a few years in their flagships, to the point where it cost them 4x less/GB than it did when they first launched with a 16GB drive.