A while back my radio died while driving. It kept happening sooner every time I drove it, then one night my lights dimmed and the next day it wouldn't start. I jumped it and let it idle for 20 minutes or so and it died again. Then it wouldn't jump.
Figured it must be the alternator, because I had a similar thing happen with my last vehicle, but I took the battery to Napa under a friend's recommendation. They tested it and said it had a full charge but no "health."
Bought a new battery and haven't had issue until now, two months and a couple thousand miles later.
Last night the radio died, then my lights dimmed, then my engine died.
Pulled over, tried to restart. Click, click, click.
Turned off my headlights, radio, defroster and it started right up. Drove it around the corner to my house and parked it.
This morning I started it, turned on all that electrical stuff, and drove it a block to the gym. The radio died and lights went dim. Turned the car off, went inside, came out a couple hours later. It was sluggish as I tried to start it but I revved the gas and it started. Made it home fine with everything off.
Should I just get an alternator, or is there other possibilities I need to consider?
Also FYI:
My check engine light comes on almost every time I stop at a stop light and the idle starts going up and down but in a pretty low range. Once I start accelerating the light goes off. It has done this for a long time and when I pulled the codes a while back, there were so many (about half of all possible were showing) that I just gave up. Not sure if this could be related?
Also, it's been raining a lot this week, but the battery terminals don't look corroded at all.