Help to understand generic battery model

hi... I construct a model but now i have difficult to understant if my connections are right's? I need that Sine Wave charged battery... The correct circuit is first or second?

First: http://img263.imageshack.us/img263/6498/firstc.png

Second: http://img151.imageshack.us/img151/8961/secondp.png

Answer 1

[Arnaud Miege]

I think the second one is correct. The first one would be correct too if the - port was grounded (which it isn't).

HTH,

Arnaud

[Nuno]

it was what I thought ...

Now, imagine the next battery values: http://img534.imageshack.us/img534/2271/batl.png

What voltage value that corresponds SOC = 1 ?

[Arnaud Miege]

Answered at http://www.mathworks.co.uk/matlabcentral/answers/10728-doubt-in-soc-of-battery