So far, I have only checked one of my three modules after seeing that post a few pages back. I did not have continuity between the negative terminal and the case suggesting to me that the case was not bonded to the negative. I still need to open the modules again and inspect them in more detail. When I do, I'll take some photos.
I received my boards the other day as well as all the parts. I started soldering them, but have yet to finish. I definitely appreciate the board and design, thanks again w0ss. Once I have the boards completed and installed, I'm looking forward to checking the cell voltages to make sure everything looks okay. Also received my Watchmon and MM8's. It was pricey, but I think it will be worth the cost.
vegburner said:
I considered a circuit breaker, but seems like a lot of folks go with fuses. No sure if there is a reason for that, I haven't looked intothe breaker specs. The costs come out to be about thesame from what I can tell.
Like many other folks,I will be using a shunt-trip breaker as my overallbattery disconnect, but am also placing a main fuse in that line as well. I guess breakers could work on each of the module strings, but like I said...based on what I've seen, fuses seem to be the common method for protection.
I agree, these terminal fuses are nice and clean. I measured the terminals on the modules and I believe these terminal fuses will fit. the holes on the terminal fuses are plenty big compared to the terminal posts on the modules. The width of the terminal fuse (about ~3/4"seems to fit through the opening on the module (~1") such that the terminal cover can be closed and no modification should be needed. I have seen references to these fuses being used on lithium batteries, but have not reliably confirmed that yet.