Power is a measure of energy per time, so to get nitpicky about it that's the equivalent of saying "near infinite speed" about something that goes a mile per hour for a few thousand years.

It'll cover some distance, yeah, but it's not what I'd call speedy.

> "Primarily though, they are best for devices requiring long lifetime, low power and where it is difficult to replace energy sources."

Infinite power or low power? I think they mean infinite energy. As in "The power went out".

It's a lot anyway. Although peak power is not great.

Over 5000 years the output would be a few tera Joules of energy. The first prototype used nickel-63 (see https://en.wikipedia.org/wiki/Diamond_battery)

It could be interesting coupled with an ultra-capacitor, if you have something that has sporadic high energy demands, but not always. Think a remote sensor, or pace maker, or such devices that need a short spike of power, but on average the energy requirements are not huge.

Literally the inverse of power!