True Rishi. I do understand electronics and the functions of the conversion to dc. This probably is the rarest case where there has been a casualty.

But back home I have come across news of cell phones exploding because of defective batteries. In fact Nokia replaced the perceived defective matshushita battery in my cell couple of years ago because the particular seriel nos of the batteries were exploding all over India.

Some chinese made batteries used as replacements also exploded while on charge.

I think in this case it probably was the cause of phone converted failing which gave a direct ac charge to the battery which exploded. Another thing is moisture or some conductivity in this person's hand could have caused the currect to get inside his body by induction