Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - battery voltage required for starting
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Old 10-15-2012, 08:34 AM   #5
TboneZX3
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Quote:
Originally Posted by BrApple View Post
Would a voltage lower then 12.5~12.6, which is normal for a good 12 volt battery effect the ability of the car to start.
Not necessarily, no. As already stated, open-circuit (unloaded) voltage alone is not a good indicator of the battery's charge status.


Quote:
Originally Posted by BrApple View Post
That is why I am wondering if starting it twice and only letting it run for maybe 5 minutes total would ahve caused a lower then normal charge on the battery and therefore a starting problem.
"Lower than normal"? Yes, probably, but if the battery is good, that type of use wouldn't reduce the charge enough to cause a no-start condition. I could do that 5 times in a row with a good battery and it would still start.
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