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SVTPerformance's Chain of Restaurants
Road Side Pub
Battery question
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<blockquote data-quote="mrlrd1" data-source="post: 13443449" data-attributes="member: 94513"><p>Battery light isn't for the battery, it's for the charging system. If it's on, the voltage is low, which means the alternator isn't charging. At idle, turn on the headlights, rear defrost, AC at highest blower motor speed, wipers on high, and leave the LF door open. If you drop into mid 13v range or lower, replace the alternator. It should be around 14.4v at idle with no load. Idle with load less than .5v drop. Loaded at 2000rpm should be within .1v of idle/no load.</p><p></p><p>A battery with a dead cell is junk. You CANNOT charge it and fix it.</p><p></p><p>You should replace both.</p></blockquote><p></p>
[QUOTE="mrlrd1, post: 13443449, member: 94513"] Battery light isn't for the battery, it's for the charging system. If it's on, the voltage is low, which means the alternator isn't charging. At idle, turn on the headlights, rear defrost, AC at highest blower motor speed, wipers on high, and leave the LF door open. If you drop into mid 13v range or lower, replace the alternator. It should be around 14.4v at idle with no load. Idle with load less than .5v drop. Loaded at 2000rpm should be within .1v of idle/no load. A battery with a dead cell is junk. You CANNOT charge it and fix it. You should replace both. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
Battery question
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