Pics or it didn’t happen, maybe you’ve got some squishy insulation but IME 8AWG is PUSHING it with the insulation caps and already doesn’t quite fit in the solder cups.
I’m not even trying to be inflammatory I genuinely want to see how you did it since it feels so impossible based on my experiences.
This i don’t really doubt though, I think for short enough pulses we can put a lot more current than things are rated for continuously
Yeah amass’s rated current is very conservative.
TBF it did require widening the caps a bit to push the wire through and the wire kind of enveloped the solder cups instead of going inside them.
Blow up multiple Vescs if i recall correctly.
10 or 12awg is plenty. little reason to go with a thicker cable unless you pull some serious amps.
This may be a silly question but I genuinely cannot seem to find an answer with the keywords I’m using
I have a used 12s llt BMS which looks like this:
It doesn’t matter afaik. I wouldn’t recommend wiring it for discharge though. You’re really not gonna be able to do much with 20a unless you’re powering accessories or other stuff.
Excellent, that’s exactly what I needed to know, thank you.
That’s exactly my plan, voltage meter and some lights, I haven’t measured the draw of either but I suspect it’s well below what the BMS is rated for.
What voltage meter are you using? I’d like to find one that’s durable and waterproof.
Admittedly, I can’t exactly remember where I bought it but this one has the same writing on the PCB and looks the same.
https://www.aliexpress.us/item/2251832500520069.html?gatewayAdapt=glo2usa4itemAdapt
I was just soldering new 14 awg wire to my focbox phase outputs, and on last wire got a terrific electrucal shock when i was touching solder
Did i fry the focboxes?
take a pic leeme see
skated to park.
Did i send 124vac through the focbox, it iz not like it was grounded.
I was barefoot, feet on concrete.
It’s a 40 watt weller with a 2 prong non polarized non grounded plug
not sure can you still talk to it?
was it plugged in?
if not, wild guessing. it probably a capacitive discharge, and if i all you did was shock yourself… it’s probably fine. ( very much guessing. )
The 2 OG focboxes share one XT90.
The XT90 was not plugged into battery.
I was soldering on new 14 awg phase wires. I grabbed solder in fingers to add more solder to iron’s tip, and got a 124vAC shock.
Id already soldered the 5 other phase leads, without having touched the solder with my fingers, then just finished the 6th.
where was the solder touching? would would have been the path of the connection?
also check that weller figure out how you did that?
I had the kester solder inside the cardboard hexagonal container it came in, on a painted wood surface.
I only noticed the shock when I grabbed the solder in my fingers to add more to the tip, but the 5 previous completed joints the tip was live with 124vac.
The focboxes were not on a grounded surface.
I assume the current path went from 124vac 0utlet through soldering iron, through soldering tip, to solder to fingers through my body to my bare feet on the concrete garage floor when I got shocked the one time i grabbed the solder in my fingers to pull more from box to add to tip.
Ive not tried connecting the focboxes to a battery or motors or a usb cable yet.
I Was wondering if it was worth the effort and instead,nif i should just go bang my head against the wall over and over until blissful unconsciousness took over.
I decided to just roll to the park with Fiona instead.
The weller likely has a date with sledgehammer.
tip shouldn’t be live with any voltage. just heat.
and that sounds like a likely path.
bug would be the soldering iron having voltage on the tip. that’s faulty.
I am checking my acct balance, and then soldering iron shopping.
I hope I didnt fry the focboxes with 124vac at the tip.
Not sure best way to test them.
There are no connectors on phase cables, and my other soldering iron is a high wattage beast with a huge chisel tip.
probably not… unless it had a path to go through the electronics. the path through you was more probable while you were soldering.
