But it’s too thick. This BMS will be for my 4wd carvon v2’s. These pull an incredible amount of amps (40a+ per motor) due to the super high KV.
Checked everything recommended on this forum so far and on bestech and supower. None really fit my requires of size (need it to be less than 22mm thick and less than 80mm wide, length can be anything.
The 80 amp will just not be enough. And I don’t want to bypass as I would like the over discharge protection. I have wasted over $700 in batteries by leaving my board on over the weekend and finding the cells at 1.2 or less by Monday multiple times, and I’m tired of it.
The vesc really does the over amp protection well, so the fuse is not really a concern for me. But as I mentioned, the VESC will still discharge after the cutoff point slowly, but enough that if you leave it on for a few days, it will destroy your battery pack, as I have done 3 times now. I’m looking to make my boards idiot proof (i.e. me being the idiot for leaving it on all weekend 3 separate times now). This is why a charging and discharging through the bms is my desire.
Sorry I got cut off by a phone call. I was also going to suggest a low voltage alarm system. I’m thinking about adding one to my build in case the BMS stops working.
Under high current conditions do BMS’s shutdown due to heat or do they measure current?
I ask because I’m wondering if it’s possible to get 30% more amps out with some huge heatsinks under the board which will have loads of fast moving air.
