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  1. New Balmar 70A Alternator

    Back in late 2016 when I purchased my boat I never thought she would be a full blown project boat. So here we are during the 2nd winter on the hard doing more projects. After upgrading the solar PV to 350W and a new MPPT solar charger for the 400Ah AGM house batteries last year and with us moving out onto a mooring this season I decided it was time to upgrade the original alternator, install a 3 stage smart regulator and make the necessary wiring changes to address the trailer plug wiring issue ...
  2. New Engine Raw Water Filter

    I finally got around to replacing all the engine raw water hoses and installing a proper raw water strainer. Previously the raw water strainer was nothing more than a Jabsco inline water filter installed only 6 inches above the seacock, below the waterline, underneath the galley sink and was a real pain to service.

    Last winter I had all new seacocks installed on the boat and the new engine intake seacock is 3/4" with inline engine flush valve. This now goes up to the new Vetus ...
  3. Battery Kindergarten (part 3 of 3) Best practices and sources

    Best practices

    Discharge Floor
    As a rule of thumb, limit discharge to 50% of capacity
    don't pull more than 50Ah from a 100Ah battery
    Don't allow no-load/rested voltage to drop below 12.0V
    Going lower will shorten the life of the battery

    Available Amp-hours
    As a rule of thumb, assume battery is normally charged up to 90%
    Means usable range is 40% of battery's capacity (from 90% down to 50%)
    Useful for estimating capacity need:

    Updated Yesterday at 02:08 PM by bgary

  4. Battery Kindergarten (Part 2 of 3) Testing, problems, equalization

    (continued from Part 1)

    Battery Testing

    Five kinds of testing

    1: Open-Circuit Voltage

    Open circuit means no current in, no current out
    Battery switch to OFF
    Battery charger not sending any current (shore-power disconnected?)
    Anything directly wired to battery (eg, bilge pump) disconnected
    Important to let the battery "rest" (become stable)
    Nominally 24 hours, in practice 2 hours is probably enough

    Updated Yesterday at 02:08 PM by bgary

    Maintenance and Mechanical
  5. Battery Kindergarten (part 1 of 3) Types, charging, maintenance

    I sent myself to Battery Kindergarten yesterday - spent the day with a few books in hopes of raising my boat-IQ a few points (Hey, it's worth a shot).

    Parking a bunch of tidbits here mostly to bookmark what (I think) I've learned, so that I can find it when I need to... I recognize that 99% of you already know all of this, and more, but if it happens to prove to be helpful to anyone else, that's a bonus.

    Also, any additions or corrections welcome, feel free to leave as ...

    Updated Yesterday at 02:09 PM by bgary

    Maintenance and Mechanical
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