Alternator
Charges the battery and powers the car while it runs.
Signs it's worn: Battery light on, dimming lights, new battery going flat.
What's wrong with my car? · Charging
Battery light on, or the battery keeps dying?
Usually: Alternator not charging.
A battery light on the dash, dimming lights or a battery that keeps going flat usually means the alternator isn't charging it.
The parts that fix it
Battery
Starts the car and runs electronics while the engine is off. Lasts 3-5 years in LA heat.
Signs it's worn: Slow crank, clicking, dim lights on start-up.
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