Settings i use
Type : Pb ( lead acid )
Voltage : 12V
Capacity : 90ah ( check what ampere hours your own battery is here )
Charge current : 9A
I was told you should charge at approx 10% of the capacity so 90Ah = 9A
Dont quote me on this though, only passing on what i was told. Family business well established, he seemed to know his stuff.
Obviously totally different to Lipo charging.
To have your battery tested at Halfords, they need to know the cold cranking amps. Mine is 750 cca. you get a printed report if you ask nicely
Richard