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The BMW Range
7 Series
Voltage unstable - causing speaker crackling
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<blockquote data-quote="cyne" data-source="post: 720756" data-attributes="member: 1279"><p>Hi all,</p><p></p><p>I just made a revelation today.. ahhaha.. I am seeing a relation with voltage dip and losing the right side speaker sound.</p><p></p><p>When car is running, voltage at 13.5V above Max is 13.7V. Eveything is ok. But when I move to a stop, nearly to a complete stop. Realised that my voltage will drop below 13V and then the speaker will crack and lose sound. And when my voltage goes back up to 13.5V everything is normal again (right after i completed my stop and idling)</p><p></p><p>Question... do I have a bad alternator or a bad battery ? My battery is tested ok with my home multimeter at 12.6V with everything off.</p></blockquote><p></p>
[QUOTE="cyne, post: 720756, member: 1279"] Hi all, I just made a revelation today.. ahhaha.. I am seeing a relation with voltage dip and losing the right side speaker sound. When car is running, voltage at 13.5V above Max is 13.7V. Eveything is ok. But when I move to a stop, nearly to a complete stop. Realised that my voltage will drop below 13V and then the speaker will crack and lose sound. And when my voltage goes back up to 13.5V everything is normal again (right after i completed my stop and idling) Question... do I have a bad alternator or a bad battery ? My battery is tested ok with my home multimeter at 12.6V with everything off. [/QUOTE]
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Voltage unstable - causing speaker crackling
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