Thanks very much for your reply. HV Model 3 batteries are unopened, rescued from 2021 and 2022 automobiles and both are the new LFP chemistry… I replaced one blown pyro-fuse and tested each to about 355v. Tesla literature says the PCS is a component of the DC-DC charger in the penthouse. I saw some ...

I’m a Newbe:

I am re-powering a catamaran with two 2022 Tesla Model 3 motors/LFP battery packs.

The only battery charging I expect to use is from 240v 40 amp AC “shore power” and/or generator receptacle.

I have a M3 HV Busbar connector/cable attached to the HV atop the battery’s penthouse ...