Unplug it and only charge when around it. Mine blew up lady night and took all the plugs around it with it
You have said this before, yet you said that the exact same thing happened as happened to a member whose cord failed at the plug. That is NOT having a charger "blow up". Also, have you checked your circuit breaker yet? I have a real hard time believing that it "took out all the plugs". What really happened is that it tripped your breaker when your cord failed, just like it's supposed to do. Your cord probably failed from plugging/unplugging it a million times. Go ahead and call an electrician. He will charge you $100 to come over, open a panel, flip a switch. Then, he'll snicker all the way out the door.
Battery chargers draw virtually nothing when they're just sitting there. They're solid state devices. It's far more dangerous to plug it in in the first place than to have it continuously plugged in. They don't just "blow up" when no current draw is induced. They can "blow up" when you put a battery in and start drawing current. Otherwise, they just sit there like your wall clock or your blow dryer or any number of other things that stay plugged in without being used..
I've been into flashlights, PV's, RC stuff for a long time. I've had dozens of chargers, from $5 to $300 models. I've never once heard of a charger just blowing up out of the blue when nothing is in it or it's not being plugged in. In either case, it is going from a 0 current draw to a current draw. That's what causes a device to "blow up".
If your charger doesn't blow up the first time you stick a battery in it, it probably never will. That is, unless you wear out the cord by constantly plugging and unplugging it.