> Another method is to have 2x CR2032 cells in parallel, which lowers IR (parallel resistors lower resitance).
Don't do this. It will work for a short time, but this basically just drains one of the CR2032 cells dead.
The issue is that lithium cells have very little discharge slope, so by the time the two voltages equalize, one of the cells is about to die.
This is in contrast to alkaline batteries which have quite a bit of discharge slope, so the two batteries can equalize voltage with most of their battery life still remaining.
Don't do this. It will work for a short time, but this basically just drains one of the CR2032 cells dead.
The issue is that lithium cells have very little discharge slope, so by the time the two voltages equalize, one of the cells is about to die.
This is in contrast to alkaline batteries which have quite a bit of discharge slope, so the two batteries can equalize voltage with most of their battery life still remaining.