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Re: Battery life and does size really matter?


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Posted by John B. on January 04, 2017 at 04:22:20 from (50.106.241.15):

In Reply to: Battery life and does size really matter? posted by Geo-TH,In on January 04, 2017 at 04:02:00:

10 Gauge wire is way too small for battery cable on a jubilee. They're only rated for 30 amps. This is why 10 gauge wire is used on charging systems.
Everyone has been sold on CCA. Amp Hours aren't spoke of anymore but still apply. CCA is only a selling gimmick. I'm like many on here and like to know how long my battery will last in a vehicle when the charging system fails, better known as "AMP HOUR". The CCA gimmick has worked for over 30 years to help battery mfgs sell batteries. Now days that's all you hear from people after they buy a new battery is, "I got an 800 CCA Battery For My Car/Truck". The new cars and trucks don't need anywhere near that many amps to crank the engine over except some deisel engines maybe. The starters have become smaller and use permanent magnets for the field so no current is needed to feed the field windings any more like in older starters. That's why when your battery goes bad or dead in these new vehicles the battery is junk. It easily turns the engine over since the starter doesn't draw near the amps as older starters.
CCA doesn't designate the size of the battery. You want to look at how many plates are inside to determine its size. Size of the battery case will determine how many months the battery can last. The taller the battery case leaves more room below the plates inside for sediment to build up before the sediment shorts out the lead plates inside. Most lead plates are the same size in many batteries. Batteries used to be identified in group size such as a "Group 35".I got this information from some one who use to work at a Battery Factory. I could go on but will stop here.


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