I have a 1997 Mondeo estate that has been off the road for a couple of years. I'm planning to get it road worthy again, barring any expensive problems being found. It runs well and should be going again shortly.

The battery had been charged occasionally, but apparently not regularly enough. It was found to be flat and the car was jump-started but died on disconnecting the good battery. A new battery was obtained and the car starts easily and runs with this. However, the alternator warning light now comes on, but didn't previously. The alternator had been replaced in the past few years, the original having expired after 100,000+ miles; the replacement has probably done less than 10,000. Does anyone know if there's any component in the alternator or charging circuit that might have been cooked by trying to run the engine with a dud battery? I'd imagine it coukld be the voltage regulator and I,ll have to get a new alternator, unless someone can direct me towards some fuse or a similar cheaply repairable component. Thanks for any & all suggestions.