Will the battery from a 200 ford focus work in a 2003 olds alero?

if its the same post like top post will work or if its side post will work truthfully i dunno the difference in a battery the way i look at it is if the battery will fit and its the same post then ill use it so yeah

I agree. But use caution and inspect the size of battery and the post locations. If this battery is much different than the original you could short out the post on metal parts in engine compartment or when closing the hood.

if it is the same size in dimensions it will work

thats wat i a was sayin sorry im just way to country