Throwing a trickle charger on it is exactly what I would do. If the car sits there for a while, usually the battery will lose some of its charge. It just depends on how long it is between drives. My SVX sat for about 3 months till last week. It just barely started up (and sounded like a damn diesel for 5 seconds when it did!!). The battery I have in that car is a $120 optima thing thats supposed to be really good.

How old is the battery? If it is more than a couple years old, I would just replace it for good measure.

Mike