Are you asking about the group size number of the battery?Or something else?

It will take a group size 75 78 and 34 batteries.

To be honest I don't know too much about batteries. I got this car from few weeks and I would to put a correct battery. I heard CCA rating is important is it true? .What shold be AH rating? I need good battery for all year cold winter even. In my country someday in winter is -20C. Can You recommend something to my car? Thank You very much.

I would get the highest rated CCA in the group sizes 75 78 or 34 you can find since its so cold where you live. I can't really recommend a certain battery because I live in the us and if I tell you a battery to get it probably won't be available there.

Yes it's cold here but only about 2-3 months in the year. I found here optima batteries. I think about 50AH 815 CCA.What do You think about it? It will fit to this car and alternator? Thank You.

What is the part number of that battery there will be numbers and dashes?

I can't find a part number but I see it's Optima Red Top RTU 4.2.

That's not the number I see for any of the red top optimas for that car.But if it says it will fit your car then nothing wrong with that. That is plenty of CCAs to start your car.Those optimas are really good battery's.

http://www.cosmoitalia.com/dwd/battCamion/optima/SCHEDA_TECNICA_OPTIMA_RED_TOP_RTU_4.2.pdf here is that battery.

Yeah that's it if you read down it says group size 34-78 that's what matches what I have.

I was trying to find battery in those groups like You said and I find it. Thank You very much for help. Best regards.

Your welcome that's what were here for.