/diy/ - Do It Yourself

>>1231478
It's a drug.

I'm not really an expert on those pre-made charging/protection circuits, but I'm sure someone on /ohm/ can help. If you simply put 4 cells with individual protection circuits on them then you could run into misbalancing, but if those are legitimate Samsung cells you should be fine.

If you examine the diagram of one of those pre-made circuits you could probably figure out how to calibrate it for your effectively higher Ah rating. It shouldn't be too tough since I can't imagine the circuits from using anything but an external shunt to measure current, though I can't see anything of the sort on circuit diagrams of these chips in use, the current seems to flow straight through the FETs and nothing else. Finding what allows the maximum current is also necessary if you plan on doing this sort of modification, you don't want to blow the FETs.