I'm confused about the saab battery. Did she get that battery from the dealer or something? Since the car is a 2003 and its 2010 its not the original right, that would be 7 yrs old.
When I worked at Autozone, I saw a fair number of the AC/delco sealed batteries come in for replacement. By no means is that a comprehensive survey of battery quality, but that does stick out in my head for some reason.
I've had some luck pulling the caps off and topping off the acid inside. I've even put water in (your supposed to use distilled water) and gave it a good slow charge and brought some back to life, even for just a short time (like 3 months). It may buy you some time if needed, but don't count on it.
edit: pulling the caps off a non-sealed one that is.....