I thought about the Battery Life... If i assume that one cell holds 800mAh, 3 Cells hold 2400mAh.

So if the circuit draws 100µA the batteries would last 1.000 days???

So if the circuit draws 10µA the batteries would last 10.000 days (>27 Years) ???

If the circuit draws 100mA the batteries would last only 24h???

I'm still a bit sad, that the original Circuit draws 0.0µA ... so the batteries would last infinitely :-D...