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BRZ Second-Gen (2022+) — General Topics General topics for the second-gen BRZ

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Old 08-26-2025, 04:08 PM   #1
icemang17
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Alternator?

2025 BRZ

Today at about 250 miles total I noticed the alt output dropped to just over 12v while driving in town. Before it was always 14v. Now it drops to around 12, rises to like 13 and varies between 12-14.

Is this normal, is it just reacting to a fully charged battery?
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Old 08-27-2025, 10:15 AM   #2
bcj
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Yup. They put in a battery conditioning circuit for '17-on.

Is alternator output load dependant ???
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