Alright so I’ve posted this build before, but I now have my battery that has a charge only BMS with the discharge bypassed. I’ve been reading up on how to deal with the electronics and I’m a bit confused regarding the function of a loopkey.
I’ve seen posts about using a loopkey along with a power switch, as well as a loop key as a replacement for a power switch. Is a loopkey’s only functional to prevent sparking or does it only serve its function if its removed?
Ideally I’d like to use a power switch for aesthetics but I am unsure if the Flipsky pro switch would work with a loopkey, and if it did, could I just keep the loopkey within my enclosure and use the power switch to toggle power? My confusion comes from the fact that the pro switch plugs straight into the VESC. What should be my plan of action regarding finishing my setup? Or would my best bet be getting just a regular anti spark power switch like this one.
You connect the loop key on negative lead from the battery. XT90S or as150. I prefer as150. Both serve to prevent the big spark, that’s all. All anti spark switches will fail and can destroy your board. So XT90S or as150 is the way to go.
So I can use an as150 or an XT90s loopkey and leave that connection in my enclosure, to prevent the spark, and then use the pro switch in the vesc to power on/off?
No.
It only prevents spark when its used as your on / off switch.
Just being in line on your harness won’t prevent your on of switch on the esc from failure.