- This topic has 5 replies, 6 voices, and was last updated 10 years, 11 months ago by
.
-
Topic
-
-
Replies
-
Normally lists of what battery to get are only made for what battery will fit. Did you actually find some info that said that it requires that much CCA? It’s probably just that newer one has less space for battery.
CCA is value of battery it tells how much current battery an give under certain conditions. How much your car needs depends on make, model, oil, outside temperature, and other things.the CCA of a battery depends on several factors.
1 how large the engine is or how much compression the engine has or simply how much resistance it poses during starting… notice how Diesel trucks have very high cold cranking amp ratings, there engines are typically very large and have very high compression which takes a lot more effort to turn to start…
2 electrical demand due too accessories and vehicle features, i have noticed some German cars with a lot of acessories and fancy do dads have batteries with a high cold cranking amp rating, this is to power all there accessories, these vehicles tend too have systems that have very high draws and the only way too keep a battery from going flat dead is to have a battery with a lot of CCA.
3 as one has already stated it is possible a battery with less CCA is smaller and lighter too save space and weight, therefore in a effort too improve fuel economy electrical demands may be smaller, a engine may be freeier too rotate, or just maybe they figured the car can get away with a lesser CCA sometimes you can do that but not often.
it is always highly recommended you go with the specifications of the manufacturer.
They may have gone to a different starter motor that draws less current.
Or they went to thinner or synthetic oil which has less friction.
Doesn’t really matter all that much, the definition of “CCA” is pretty fuzzy in theory and in practice.
The thickness of the plates (internal electrodes) within the battery will factor into the CCA rating. For a given battery model/size, you may find a range of CCA ratings for different batteries. A larger CCA rating translate to thinner plates, which can have reduced longevity in warm/hot climates, but they can provide more power in freezing temperatures.
As pointed out, it may be that they switched to a different starter but I suppose there are other possibilities as well. Let’s put it this way. If a manufacturer can save just a few pennies in the manufacturing process, it saves millions across the production line. Making things, smaller, lighter, and cheaper is the way of the world. So to answer your question, it’s probably the accountants telling the engineers to make it cheaper.
- You must be logged in to reply to this topic.