In 2013, Bosch released the 400Wh battery. It was a 40 cell battery, and it was their biggest battery for a few years. Already in 2015, the lithium batteries were drastically improved. So Bosch launched the 500Wh battery for 2016. It was still a 40 cell battery. And pretty much nothing has happened since.
When I talk about battery improvement in this context I’m talking about “energy density”, how many Watt-hours we get per kilo battery. Even the new 625 and 700Wh batteries have pretty much the same energy density. So when will we see the next significant increase in energy density? I share my thoughts in this video.