It is not odd thinking. Whatever you want to do, all EV designs revolve around the battery, the most important and expensive part. Everything depends on price per kwh, on energy density, on reliability.
There is another topic about using Tesla cells from crashed cars - https://endless-sphere.com/forums/viewtopic.php?f=14&t=69046
I know a little about making packs from cells available in Europe, about packs imported from China, the price per kw for a reliable battery that will be available everywhere can be a good starting point.
If you say odd thinking I give you more odd thinking. I make photovoltaic installations for houses, most of the income here depends on state subsidies. But if the house wants to deposit solar energy in a battery than the state gives no more subventions. So If we can say - we have an electric vehicle - we consume the solar energy to charge that electric trike to go to the market to buy groceries, than we can get state subsidies for the solar panel installation and also use the battery of the EV to consume electric energy in the house in the evening.
Ok this is a forum about design. But I see here too many nice prototypes that do not get to the next stage - to small production, exactly because many can not make ”odd thinking”, do not judge a design in terms of production, efficiency, in ”business terms”. The success of all design depends on how the design relate to the real market and to the efficient use of technology and resources. Why not have same battery used for EV and house? Yes there are a lot of details behind this question. But dual use of batteries can be a crucial trick, if we will be able to get energy directly from solar panels and use that battery in a EV and in the same time in the house in the evening, than we will be able to sell ebikes, to make profit, more design, more production.
True I do not know much electronics design, but I ask 2 questions - if the Tesla Powercell is basically a 48v battery, than it could be used at 48v without cutting the electronics that take the voltage up to +300v.
If the Powercell must be used in vertical position than it can not be used on the floor of a electric trike. Someone will have to see exactly if there is this liquid cooling or not, if the battery can be used in horizontal position or not.
In worst case the Powercell could be opened, modified to be used only for a electric trike, not for dual use, all depends on the end user price of the Powerwall, I do not know that price either, i hope to find out that price tomorrow.
