Hello I am in the process of soldering the sense wires to the parallel groups. But I can't get the wires to stick to the copper plates? I have tried soldering with flux, and I have tried to scratch the copper surface nothing works it won't stick.
I’ve got an 801H spot welder, and I was able to spot weld 0.2 mm copper to 0.1 mm stainless steel pretty well. Now I’m at the point where I need to connect the parallel groups in series, and I’m not really sure how people usually do this.
Do I just solder the series connections onto the copper, or is there a way to spot weld copper to copper with this kind of setup? What’s the best way to make these connections strong?
I have the BBSHD paired with the flipsky 75100 but I can't seem to get it working properly. For some reason if I go low speed and give full throttle or just full throttle the motor seems to resist?
I have started this pack build, and Iam using 3d printed cell holders. Just seems like the cells are a little to close is this a problem?