focus 1.8 2004 petrol
Some times its a little sluggish to fire up the current battery looks like the original. It takes 1-3 goes usually to get it going. I'm thinking come the cold weather its not going to go well. The specs 12v 65rc 390A 43Ah.
The manual says its needs a calcium based battery, don't quote me was late when I was reading but am sure it said that.
I've pin pointed the bosch s4 which is higher rated, at 60Ah and 540cca so should do a better job and not let me down in the winter or summer with greater demand on stuff more so in winter though. BUT I'm having trouble finding if its a calcium based battery as not to want to upset anything on the car. Can anyone spot if I've missed it somewhere ?