Hi,
Thanks, Brad. Your reply is very helpful, and I certainly agree about the 1 - 2 Ohms/500mA. Wouldn't be eager to drain a 9V to test real impedance and then have no charge left in it, as you say in your third paragraph.
Thanks, Klaus. It seems to me, in my admitted big ignorance, that the 'DC Load Method' is a 'What came first, the chicken or the egg?' - i.e., unless you want to know the max. load possible the baddery could handle, it's just fun with maths as up to that point the load directly influences the internal resistance value. I don't see that as useful for 'realistic' simming objectives.
'optimal conditions' and 'best performance' - good reminder, thanks.
Hi, EasyPeasy. Right, thanks. Your answer helps to see even more that for simming purposes I just have to accept approximations and it's far more productive to have real, hands-on experience in order to evaluate the results as valid or doubtful.
Many thanks.