So his heart was pronounced dead, it didnt function but was left inside I think. I always wondered his abilities and I asked once that very question, particularly towards having sex lol. He used to be an alcoholic and could no longer drink as it would thin the blood and thus mess with the pumping ability.

I don't recall him ever doing anything strenuous and truthfully don't recall his answer to that question but seems like he joked that he could still do it with a woman. He walked slow, talked slowish labored sort of, laughed sheepishly like a labored laugh. Generally looked sick like you can imagine. He drove cars and that's about all I remember. Im unsure if he could turn it up maybe? I haven't spoken with him in a decade. I don't even know if he is still alive.

He got robbed/mugged in a big city about 10 years ago, the mugger took his satchel containing his medical battery bank despite him explaining the battery pack and pleading at gunpoint on a downtown street. He nearly died and an ambulance couldn't arrive in time. A stranger he flagged on the street transported him to a hospital where they somehow got him hooked up to a new battery system. They said he had mere minutes left on the internal battery inside his pump. That was the last info I heard of him. Wild to think about and he told the robber it was a medical pack but they thought it was a laptop bag and took it anyhow, it was more square like a car battery than a satchel but more vertical shaped like a rectangle.

I believe this is already the case with pacemakers