as said the majority of batteries you see, "lion" from eurocarparts, motorcraft and ford silver from ford, halfords batteries from halfords are made by "uk batteries" and that is the norm as batteries are just batteries,,,, look at the construction and what they are made of,,, a form of metal plates, acid and plastic

no matter what you do it will be the same but some companys use calcium ect in there batteries ( which makes it a different battery) and even then they are the same

we just buy bosch as we feel we need to buy a better battery

same thing with oil too in this day and age with very few exceptions