Battery light comes on and the car dies while driving and then restarts

Hi, twice in the past few days I have been driving at a low speed when out of nowhere the battery light comes on and the car dies and comes to a stop. The car restarts instantly without any issues at all. Both times this has happened the heater has been turned on. There has also been a constant loud and rattling mixed with cracking knuckles like sound coming from what I believed was the area near the cassette player but could be the hood, exact location is unknown. This noise occurs when accelerating and has occurred for around ten weeks