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SVTPerformance's Chain of Restaurants
Road Side Pub
"Cold" weather battery question
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<blockquote data-quote="MarcSpaz" data-source="post: 15782676" data-attributes="member: 183445"><p>To answer your original questions... battery voltage should not be affected day to day in the temps you stated unless the battery is starting to fail. However, the ability to be able to provide a given amperage is diminished as the temperature drops, even with a healthy battery.</p><p></p><p>Additionally, buy a $10 volt meter and test the battery at the posts... 12.5- 12.8 will be average. Anything less than 11 after 24 hours or less indicates an issue and you may have trouble starting the vehicle. Anything less than 10 volts and you can almost completely forget it. </p><p></p><p>The normal operating temperature range for a lead acid battery is from -4 degrees to + 122 degrees. Once you get below -4 degrees the molecules won't be excited enough to produce the energy needed to start the vehicle on a consistent basis. Over 122 degrees, the ability to deliver current is also affected due to the molecules being over-excited due to heat. As you start to draw more electricity the heat goes up to a point where it's destructive to the battery.</p><p></p><p>As long as you have a battery with the appropriate CCA rating, you should be fine with your particular vehicle as long as the battery is healthy and inside the normal operating range.</p></blockquote><p></p>
[QUOTE="MarcSpaz, post: 15782676, member: 183445"] To answer your original questions... battery voltage should not be affected day to day in the temps you stated unless the battery is starting to fail. However, the ability to be able to provide a given amperage is diminished as the temperature drops, even with a healthy battery. Additionally, buy a $10 volt meter and test the battery at the posts... 12.5- 12.8 will be average. Anything less than 11 after 24 hours or less indicates an issue and you may have trouble starting the vehicle. Anything less than 10 volts and you can almost completely forget it. The normal operating temperature range for a lead acid battery is from -4 degrees to + 122 degrees. Once you get below -4 degrees the molecules won't be excited enough to produce the energy needed to start the vehicle on a consistent basis. Over 122 degrees, the ability to deliver current is also affected due to the molecules being over-excited due to heat. As you start to draw more electricity the heat goes up to a point where it's destructive to the battery. As long as you have a battery with the appropriate CCA rating, you should be fine with your particular vehicle as long as the battery is healthy and inside the normal operating range. [/QUOTE]
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SVTPerformance's Chain of Restaurants
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"Cold" weather battery question
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