All battery powered products manufactures are doing a very good job at discouraging their customers ever buying another piece of their equipment by not providing service parts at reasonable prices to us techs that are willing to learn new things.
It is the same with any industry. What would have happen if the first home computers or electronic calculators were not serviceable? We would still be using old rotary mechanical calculators and old mechanical typewriters. Without computers we would still be doing everything, paperwork wise; by pen, paper, and lots of storage cabinets that they save us now. The point here is someone had to be willing to learn how to repair them.
Yes the learning curve is going be a major problem at first but so was electronic fuel injection. I remember when it first came out no one knew how to work on it including many of vehicle dealer mechanics.
And getting the OEM to provide parts is also a major problem as they have no idea what is going be needed. And of course the Chinese like to make things and then destroy all the tooling so they can make a newer product.
And right it is getting hard to get even get parts for the current fuel powered equipment that is only a year old.