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Message: <blockquote data-quote="joetama" data-source="post: 5161229" data-attributes="member: 564641"><p>You are correct. But the battery isn't the power source, it is a place to store electrical energy until you need it later. It spaces current usage from the alternator over time. You have to think of the time factor. Remember you aren't using current constantly so you can space the 100% alternator usage over time storing power to be used later. This is what gives you the constant voltage when the alternator isn't producing 100% power. Another filter capacitor (stiffening, bypass, etc etc) just gives you another place to store power. If you go with a good quality capacitor the voltage charge and discharge rates are faster than the battery for spikes in current usage. This gives you a much more constant voltage.</p></blockquote><p></p>

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