On Jul 9, 3:11*am, Ron wrote:
I bought a 90 watt power pack/battery charger for my Dell laptop and
less than 3 months later whenever I plug it in, something quietly goes
"pop!" Probably a cap inside? I think the unit still works, but it
makes me nervous to use it. I doubt it's fixable in that almost solid
plastic case, but is it really safe to continue using or should I
ditch it and buy a new one? Opinions anyone?

Ron

TAKE IT BACK WHERE YOU BOUGHT IT!!!!! This isn't rocket science.