hi
can it possible to produce 220/230vac from 12/24/48vdc car battery continuously(with out interrupt) at least 24/48 hours?if yes,how?does it work for all kind of power conveter? if no,why?
First, please post questions in an appropriate section.
Yes, an inverter can produce an AC voltage for that period of time, provided that the battery/ies have the capacity to supply the current. In other words, it depends. With no parameters, that is about as good as it gets.
How? - by being able to supply the necessary current.
When the battery is discharged too much (from the current that you did not talk about) then the inverter stops. When the current is high then the battery charge will not last long. When the current is low then the battery charge will last a long time.