Thanks for another interesting and informative installment. l look forward to the next one . l have a few questions if you don't mind. 1. Why were you so particular about the length that you extended the bms daisy chain ? Was there any specific reason why it had to be 165mm ? 2. Are you going to use the Tesla motor controller or an aftermarket one ? 3. And finally a bit of a left field one. Have you thought about using a complete Tesla ev battery i.e. 380v plus as a home storage battery ? Cheers.
Thanks! He He, 165mm was just the length I worked out to be a tidy fit (nothing soecial about that length)! Plan is to only use the Tesla computers to control the motor - cheaper and better! Yes, I have though about using the battery as extra home storage - haven't had time to go in to it to much though. If you do a search for Dala's EV Repair (youtube channel) he has been open sourcing stuff to make this easier (including talking to the model 3 battery BMS).
Thanks for the detailed coverage. In your opinion, is there a way to separate the penthouse from the battery without disassembling the contents of the penthouse? I was thinking of taking the top off the battery cover, penthouse, and all. I plan to mount the penthouse separate to the battery so it sits between the chassis rails.
Yes. Actually, that is a much better way to do it anyway (I did it the hard way!). So - Remove Pyro, Remove battery terminal nuts (x4), Disconnect BMS Daisy chain (x4 points), CAREFULLY disconnect the motor/hvac output plugs (this is the hardest bit), coolant screws. Then break the urethane seal between the top and bottom of the battery case and lift off together with the penthouse. Then you can break the urethane seal between the battery top and the penthouse case to end up with the penthouse on its own.
