The last time that happened to me it was with a Carvin that had a butchered battery compartment, held together by tape, hope and spite. You had to remove the tape, pry out the battery, slot in the new one (held in place by a piece of folded cardboard) and then tape it shut again.
I did all that mid song, in record time.
That Carvin went from sounding fine to dead in less than a minute.
After the set, a patron told me he never understood the role of bass in music. He guessed it must be important because every band had a bassist, but he never was able to identify what it is that they do.
My little demonstration did clearly show what people tried to explain to him time and again (without success).