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2 posts in this topic

Right i think most of my problems are down to the shear fact i have a naf battery on my car its only a 390 70ah i think same as mrs fiesta one and i was told by ford a calcium one is desgined for the focus as it uses a smart charging system using anthor battery could harm damage or even make it misfire slightly which my car still trys to stall a little but not as bad and when using auxially equipent it dims lights and all sorts is it worth buying one of these batterys



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calciun batterys are recomended for the focus smart charge system which is to complicated for a lead acid battery. go with whats recomended as a normal battery would only last a few months before cells will start to give up.

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