What battery cca for TD27T please?

[altair]

Battery in my Mistral is buggered, what is the minimun CCA requirement for these TD27 engines? Seems 600 to 630cca is the common size in an NS70 battery, but I have a 750 CCA in there now, which is putting out 600 when checked..will start it once, but not twice until its had a run. Heaps of NS70 batteries around at 630CCA, this good enough? What size do you guys run for a daily driver TD27? Just the single battery, Cheers

[stovanovich]

go the N70 instead instead of NS70. 730cca gives you more option for accesories then

[Crash bandicoot]

lead acid 660cca or higher. not deep cycle and not sealed.