BMS
So here we go
Gonna feed this topic with some pcb etching photos
Update:
Finally, I have successfully soldered 1 balancer sub-circuit out of 6 and tested it. It reached impressive balancing current of 200mA w/o any problems and I’m sure it’s not the limit.
More importantly, this thing starts balancing before cell reaches 4.2 volts. Keeping that in mind you can use this for a huge packs that do not handle their voltages well enough.
Definitely going to share more details later
Update 2:
I failed to solder so many dense smd components using soldering iron
So, why not reroute the pcb to make this thing more soldering-friendly?
I’m not going to etch this thing right now, until the motherboard project is complete, because who knows, I still have spare 10x40 mm space left that I can use to place voltage dividers for each cell to monitor them. Keep in touch for update 3
