Electrical Systems

A forum to discuss marine electrical systems design, electrical components, sources, and techniques.

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  1. CDK

    exploded battery

    CDK, Apr 30, 2015 ... 4 5 6
    Replies:
    86
    Views:
    31,142
    powerabout
    Jun 15, 2018
  2. Yobarnacle

    Kerosene Generator..How To?

    Yobarnacle, Jan 4, 2012 ... 4 5 6
    Replies:
    81
    Views:
    29,945
    Yobarnacle
    Jan 13, 2012
  3. fallguy

    AC DC grounding

    fallguy, Nov 8, 2022 ... 2 3 4
    Replies:
    54
    Views:
    10,354
    fallguy
    Jun 22, 2025
  4. Katoh

    Battery Cable Size?

    Katoh, Oct 20, 2011 ... 2 3 4
    Replies:
    53
    Views:
    38,282
    Yobarnacle
    Dec 9, 2011
  5. jdory

    size of lithium battery bank - 3.2v cells

    jdory, Oct 4, 2018 ... 2 3 4
    Replies:
    51
    Views:
    10,287
    BlueBell
    Feb 28, 2019
  6. terabika

    cheap 12 volts!!!!

    terabika, Aug 27, 2005 ... 2 3 4
    Replies:
    48
    Views:
    16,065
    Ike
    Oct 13, 2006
  7. Jim Price

    GFCI Problems on a Tiny Houseboat

    Jim Price, Aug 1, 2024 ... 2 3 4
    Replies:
    46
    Views:
    4,156
    sdowney717
    Sep 30, 2024
  8. fallguy

    Spade terminals

    fallguy, Feb 26, 2022 ... 2 3
    Replies:
    44
    Views:
    7,812
    sdowney717
    Oct 1, 2024
  9. Mark Emaus

    Marine Wire

    Mark Emaus, Oct 8, 2009 ... 2 3
    Replies:
    44
    Views:
    15,852
    Mark Emaus
    Oct 17, 2009
  10. DennisRB

    LEDs for less power consumption

    DennisRB, Oct 7, 2010 ... 2 3
    Replies:
    43
    Views:
    12,668
    rxcomposite
    Dec 3, 2020
  11. Nordic Cat

    Experience with bus based power systems?

    Nordic Cat, Oct 11, 2008 ... 2 3
    Replies:
    42
    Views:
    14,390
    pamarine
    Sep 29, 2009
  12. drs3317

    Galvanic isolator

    drs3317, Jan 10, 2005 ... 2 3
    Replies:
    35
    Views:
    24,291
    Theodora
    Jun 19, 2006
  13. chuckms

    Grounding

    chuckms, Mar 27, 2011 ... 2 3
    Replies:
    31
    Views:
    13,531
    Mark Cat
    Jul 12, 2011
  14. D.I.M.1

    Best Navigation Lighting.

    D.I.M.1, Nov 3, 2009 ... 2 3
    Replies:
    31
    Views:
    11,840
    WickedGood
    Aug 31, 2010
  15. fredscat

    Basic wiring questions

    fredscat, Oct 2, 2010 ... 2 3
    Replies:
    30
    Views:
    10,246
    yipster
    Jun 24, 2011
  16. terabika

    why no solder???

    terabika, Aug 27, 2005 ... 2 3
    Replies:
    30
    Views:
    11,545
    scubajohn
    Apr 19, 2006
  17. missinginaction

    Lightning protection

    missinginaction, Sep 8, 2013 ... 2
    Replies:
    28
    Views:
    13,087
    Charlyipad
    May 14, 2015
  18. Landlubber

    Battery Cables & Bow Thrusters

    Landlubber, Oct 1, 2007 ... 2
    Replies:
    28
    Views:
    9,916
    TerryKing
    Nov 25, 2007
  19. Westerly23

    calculating wire length

    Westerly23, Mar 26, 2007 ... 2
    Replies:
    28
    Views:
    8,275
    TerryKing
    Mar 29, 2007
  20. nnyerges

    One Starting Battery For Two Engines?

    nnyerges, Nov 11, 2011 ... 2
    Replies:
    27
    Views:
    15,060
    nnyerges
    Jan 23, 2012
  21. shotgunsmitty

    Electrical problem on a 4W Freedom 160

    shotgunsmitty, Mar 13, 2006 ... 2
    Replies:
    27
    Views:
    7,346
    shotgunsmitty
    Jun 19, 2006
  22. LP

    Wiring diagram for an O/B.

    LP, Apr 10, 2009 ... 2
    Replies:
    26
    Views:
    44,420
    CDK
    Sep 13, 2012
  23. Highroller63

    Wierd Electrical issue Please Help!

    Highroller63, Jul 10, 2022 ... 2
    Replies:
    25
    Views:
    4,572
    Sparky568
    Sep 10, 2022
  24. Charlyipad

    Help with catamaran wiring and layout

    Charlyipad, Feb 28, 2015 ... 2
    Replies:
    24
    Views:
    8,350
    Charlyipad
    Apr 19, 2015
  25. gdufus

    charging a 24v starter bank with a 12v alternator

    gdufus, Sep 5, 2011 ... 2
    Replies:
    24
    Views:
    15,574
    BertKu
    Dec 12, 2011
  26. Gould1

    Shore power grounding

    Gould1, Apr 20, 2010 ... 2
    Replies:
    24
    Views:
    19,977
    capt littlelegs
    Apr 21, 2010
  27. WesS

    Fuses

    WesS, Feb 18, 2010 ... 2
    Replies:
    24
    Views:
    6,193
    TollyWally
    Feb 21, 2010
  28. missinginaction

    Navigation Light Wiring for Dual Stations

    missinginaction, Feb 9, 2013 ... 2
    Replies:
    23
    Views:
    36,696
    missinginaction
    Jun 13, 2013
  29. Frosty

    Pos and Neg Battery switching

    Frosty, Jul 9, 2011 ... 2
    Replies:
    23
    Views:
    10,714
    aswin
    Jul 18, 2011
  30. Poida

    Ammeter V Voltmeter

    Poida, Nov 23, 2006 ... 2
    Replies:
    23
    Views:
    19,839
    StianM
    Dec 11, 2006
  31. seadreamer6

    DC vs AC which is better on boats

    seadreamer6, Nov 6, 2012 ... 2
    Replies:
    20
    Views:
    25,935
    VertexMarine
    Sep 9, 2013
  32. grpqueen

    LED lighting,12volt household/marine ?

    grpqueen, Apr 15, 2010 ... 2
    Replies:
    20
    Views:
    18,566
    ULightsUSA
    Nov 23, 2012
  33. wallguy31

    24V and 12V

    wallguy31, Feb 27, 2006 ... 2
    Replies:
    20
    Views:
    19,268
    BassMan25
    Apr 9, 2007
  34. MikeJohns

    Replacment Rectifier for MIG Welder

    MikeJohns, Sep 18, 2011 ... 2
    Replies:
    19
    Views:
    29,150
    MikeJohns
    Mar 5, 2018
  35. Lady Sophie

    24v vs. 12v - any advantages?

    Lady Sophie, Nov 26, 2012 ... 2
    Replies:
    19
    Views:
    45,590
    Mark Cat
    Jun 14, 2013
  36. Portager

    Boat Generators

    Portager, Mar 5, 2004 ... 2
    Replies:
    19
    Views:
    16,126
    StianM
    May 11, 2006
  37. Bob7

    Interior LED Lighting

    Bob7, Mar 13, 2012 ... 2
    Replies:
    18
    Views:
    7,110
    therollingfrog
    May 20, 2012
  38. Brylk1830

    What to use to crimp 8 AWG wire?

    Brylk1830, Aug 14, 2008 ... 2
    Replies:
    18
    Views:
    27,943
    TerryKing
    Nov 20, 2008
  39. MCDUNK

    Typical wiring schematic/diagram

    MCDUNK, May 28, 2006 ... 2
    Replies:
    17
    Views:
    417,528
    bubbajackson
    Jul 13, 2012
  40. musun

    FlyBridge Research

    musun, Dec 5, 2010 ... 2
    Replies:
    17
    Views:
    6,721
    apex1
    Jan 11, 2011
Showing threads 1 to 40 of 344

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