But that's not true... A pacemaker goes inside your body. It's replaced during a surgery every 15-20 years and has enough battery lifetime to last that long. T

But that's not true... A pacemaker goes inside your body. It's replaced during a surgery every 15-20 years and has enough battery lifetime to last that long. There used to be nuclear-powered pacemakers that could last many lifetimes but nowadays the doctors say it's better to replace the whole thing every once in a while, so the nuclear option is overkill.