Each slot of the Haya will house 12S2P 18650’s. All the connections including battery sense wires are done through the pcb. Both packs will have a 40A fuse, the tracks of the pcb are designed for a 30A continuous with a 10 degree temperature rise.
The BMS is discharge circuit is by-passed from the high current path. However, it’s discharge circuit can control the Unity switch . Meaning if the BMs detects an undervoltage fault, it is able to shutdown the Unity via the switch.
connector for the charge port, with onboard fuse
connector for the bms
input connector for the switch, output connector to the Unity
input connector for the CAN bus, the output connector is alllll the way at the other end of the pcb
Another interesting thing with the CAN bus, i’ve connected both 5V of each Unity together with an inline 5 Ohm resistor, this will allow me to turn on both Unity’s with a single switch.
Yeah no kidding @Blasto
I mean with all the HAYA builds going on here (like @sofu’s S3 or @banjaxxed hummie HAYA) i really want a a HAYA too!
This build is absolutely crazy, and I can’t wait to see it when it’s done!
Definitely bookmarked!
Well done @Blasto , the PCB idea is really great, did you find somewhere that make these large boards cheap?
And looking forward to see what effect the under board lights give, lots of times I thought about incorporating a light strip embedded on the bottom in a channel filled with epoxy, but is was too much work, you may change my mind
Yeah i got the pcb from pcbway, a little over 300$ for 10 pieces ship incl. Pretty dam cheap for a pcb that size.
I should be able to test the leds on the deck by the end of the week, i’ll have to admit i’m a bit afraid that the thickness of the deck will collimate the light and not get the wanted spread… but whatever, we’re having fun aren’t we?