The toughest bit of this build, in my view, is turning salvage modules from a crashed Model S into something safe enough to hang on a wall of a home. The maker seems to have taken that seriously: a SimpBMS board talks to the native monitoring boards inside the Tesla modules, two contactors are wired to that BMS, and the pack watches temperatures and cell states so the main contactor can drop out on overcharge or a fault. There is also SMS and app alerting when something trips.
The layout is four horizontal EV modules stacked vertically, held in an enclosure framed with white metal struts and crossbars. The DC side is built around a Victron Quattro inverter/charger, SmartSolar MPPT charge controllers, an Orion-Tr 48|12-9 converter and a 500A/50mV shunt. Protection comes from a 200A fuse plus 125A cylindrical fuses in the 22x58 mm size, with thick copper busbars in the distribution cabinet and a 12V block labelled for the BMS, the Fibaro gear and a garage camera.
Two details stand out to me. A Corsair liquid-cooling PC radiator is meant to hook into the cooling channels already built into the Tesla modules, which reads as a neat reuse of what the pack already has. And Fibaro smart home integration ties the monitoring into the house.
It is not finished: the batteries still need connecting to the BMS, and an earlier contactor cracked at the terminal housing after a lug was over-tightened, so a replacement is going in. The cabinet gets locked once the wiring and final details are done.
Project by The CSTech. Watch it on their YouTube channel: