3JS 1.5-R ⇒ new fuses for voltage sense wires https://www.digikey.com/en/products/detail/bel-fuse-inc/3JS-1-5-R/1010057. It’s more expensive but 100% worth not making the pcb board
0.6in. clearance for usb
Minimum clearance between walls: 3.2188in-10mil=3.210in
Maximum clearance between walls 3.4613-0.09in*2=3.230in
Minimum Long clearance between walls: 11.156in-10mil=11.150
Maximum Long clearance between walls:: 11.170
bend radius usb cable: 1in
PCB to top of esp32: 15.7mm=0.62in
PCB to cable round: 16.3mm=0.67in (could be squished to 0.65in)
120V, 200A continuous, 6.2 kWh nom (4.92kWH @ 2C 80% derated) 28s20p Custom BMS LTC6820 Motor controllers: EMDrive500 (30-125V, 800A peak) Motor: Hawk20s (250A, peak 425A)… RIP one of them
Sony VTC6 cells
In order to guarantee accumulator discharge under any abnormal behavior, three shunt references with minimal operating current (1 uA) were connected across the TSV+ (After AIR unfused+) and TSV- (After AIR unfused -) lines, such that by default they operate at their breakdown voltage (3.3V each). As such, a stable 9.9 V signal ensures the nMOS transistor (IPD65R400CEAUMA1) switching the discharge circuit remains normally closed, as 9.9 is greater than its threshold voltage (max 3.5V).