It was not that hard to replace as the glue was sort of rubbery. It was tricky to glue in the new one though, trying to keep the glue from getting into the wrong spots.
I think people who kill the resistor early are not pushing them 100% all the way in before riding. I always made sure of that.
I can confirm this, happened to me my first time out. The plug wasn’t fully secured so it slid a bit as I was plugging in.
Make sure to brace or secure your plugs, a glue gun works great for this.
Just to clarify, is it ok to leave the BMS plugged in at all times, even if you don’t have an on/off switch on the BMS? So the loop key would be in between the VESC and everything else, on the positive wire.
If I wanted it to fuse, I would solder an actual fuse to it. I made that specific one rated for 135A+ continuous because I don’t want it fusing. Ever.
I’ve thought a lot about this, and everyone differs, but me personally, if the board starts severely malfunctioning while I’m at-speed in heavy traffic, I would prefer the battery stay connected as long as possible so I still might have brakes to stop while the board is burning-down. If you’d prefer the loop key fuse-out to possibly save your expensive electronics instead, that’s personal preference but I’d rather have the extra couple seconds of throttle response myself. Once it fuses, you’ve got no brakes.
Basically it’s
ME > BOARD
or
BOARD > ME
I prefer to give the benefit of the doubt to myself over the safety of the board/battery itself.
In general, fuses should be rated to protect the wires behind it.
In this specific case, I’d fuse at the amps of the lowest component. Usually this is the 5.5mm dc jack. Next is the BMS charge max, then usually the charge wires (both positive and negative – it’s a circuit).
Fuses have some built-in room over their rating. If you oversize your fuse, it won’t kick in in time to save your parts. (this may be true even if you perfectly size your fuse)
No apologies. In my head I was thinking an 8 amp charger and maybe a 10 amp fuse as a reference point so good to know. You’d think chargers would just come with a fuse built in