recently, my elderly dell inspiron laptop (think; windows xp) spontaneously ignited. It was switched on and i was in another room when i heard it explode. I returned to see lots of fumes and flames. Thankfully there was little loss of property. I understand that this is a known issue with dell. Is there anyone here who  can explain how such a dangerous battery passed qc and the regulators, and why there is not more awareness around there issues?