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2002 Chevy Trailblazer / suggestions
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<blockquote data-quote="missinglink" data-source="post: 4423454" data-attributes="member: 590831"><p>You should run a second battery for sure. If your batteries are not getting charged its because your alternator is only putting out around 14volts. We looked into the optima and in their studies they need higher voltage to start the charging process internally. You might need to charge them hella long on a charger for a few nights. GM AD (D = Digital) series alt regulators are controlled by your vehicles computer. This has a 14v rating it feeds to your alt. It acts as a cap for you cars voltage more or less. When your alt heats up this voltage will drop around 13.6/ 13.8. all GM set points do vary. With this over ride from the car it gets rated on factory battery specs and the higher current battery is under read for charge. Your car doesn't compensate for the more power needed for the optima's. Hop this helps,</p><p></p><p>MLA</p></blockquote><p></p>
[QUOTE="missinglink, post: 4423454, member: 590831"] You should run a second battery for sure. If your batteries are not getting charged its because your alternator is only putting out around 14volts. We looked into the optima and in their studies they need higher voltage to start the charging process internally. You might need to charge them hella long on a charger for a few nights. GM AD (D = Digital) series alt regulators are controlled by your vehicles computer. This has a 14v rating it feeds to your alt. It acts as a cap for you cars voltage more or less. When your alt heats up this voltage will drop around 13.6/ 13.8. all GM set points do vary. With this over ride from the car it gets rated on factory battery specs and the higher current battery is under read for charge. Your car doesn't compensate for the more power needed for the optima's. Hop this helps, MLA [/QUOTE]
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2002 Chevy Trailblazer / suggestions
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