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  1. #1
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    Battery alarm on MerMonitor

    2011 sportjet 200. Alternator failed and I replaced. Output voltage at new alternator 14.2 -13.5, depending on battery charge. I am getting a Battery alarm on my MerMonitor. Bad cell on battery? Boat starts ok but alarm goes off every 4-5 minutes. I ran the boat idling for about an hour to get home when the alternator failed. Any advise. Thanks, Rich.

  2. #2
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    Aug 2025
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    USA
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    Where you able to fix this?

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