bitem2k
New Member
Ive got a portable fridge that will run from 12v. Its says on the back of the fridge that it uses 80w.
I plan on running the fridge from a spare car battery that I have, it says that its capacity is 50A/h.
Does anyone know how i can calculate the amount of time that the fridge can run from this?
My attempt at calculation goes like this:
Watts = V * A
so 12v * 50A = 600W
600W / 80W = 7.5hrs. Is this right?
thanks very much.
I plan on running the fridge from a spare car battery that I have, it says that its capacity is 50A/h.
Does anyone know how i can calculate the amount of time that the fridge can run from this?
My attempt at calculation goes like this:
Watts = V * A
so 12v * 50A = 600W
600W / 80W = 7.5hrs. Is this right?
thanks very much.