What would cause the battery to explode?
The battery went dead, was jumped and then blew a fuse on the headlights.
Another jump start and the car ran for 4 hours. When arrived home, went to
jump the battery, turned the key and it exploded.
A spark and gases escaping from the battery. Since you had multiple jump starts, it was time for a new battery. Read this for more info. There is always a danger, so that is why there are precautions you must take when jump starting a vehicle...https://www.lifewire.com/dangers-of-exploding-car-battery- 534782
Thank you for this answer and the article.
Hydrogen gas is explosive!
Time for a new battery. Get the alternator tested also.
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