2000 Taurus Battery Light
I went out for a drive today and while I was out driving, my Battery light came on and stayed on. Up until now, the battery light would come on whenever I was accelerating fast. It started today going on at lower RPMs than normal, and then it started doing it whenever I was accelerating at all, but would stay off at idle. I have driven probably 25 miles since, with no problems, and it starts right away with no hesitation. The car has 135k on it and Ive owned it for about 5 months.
Any Ideas on this? Bad battery and or alternator?
A couple notes: It has been warmer lately, yesterday was almost 50...so I cleaned the car, including the engine (which I never usually do). Today it was raining and cold, almost in the 30s. It might have even been freezing last night.