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  1. Hello again,
    One thing omitted in my previous answer:
    Battery coupler . Very often there is a position “1 + 2” . which is to put a battery in parallel “vacuum” with a “full” ; You get a nice short juice , able to melt solder lugs in 70; (by experience…) I have two basic switches; After long studies, the function of exclusion of 1+2 is made by connecting the 2 keys by a piece of string.

    right nav

    Gael clavé

  2. Hello,
    An excellent article. Then I attached with my little experience pleasure.
    I built in 2009 , for my sailboat , 2 packs 24V 130Ah from cells CALB.
    In service since; Which 7 years in the Caribbean and 2 years “unused”, without any precaution.
    Today we are back in Antibes.
    In daily operation : lighting has giorno, 3 PC and 1 tablets, fridge, … often turns to nothing…
    The watermaker (100l/h) with 30A turns without problem - and diesel.
    The windlass itou, me up in the morning without weakness.
    However the storage capacity is significantly reduced- estimated has 50%.
    But still sufficient for a local navigation.
    How to load : 1 panels solar monocrist’ 130W
    1 Charger dock 24V clamp in limit current has 50 Am
    1 140Amp rule a 28V 70Amp.avec 24V alternator serpentine belt 8K
    EU notes on the alternator: It is the 2' alternator. The 1′ 24V 90Amp , clamp it has 50 has smoked after 200 hours of operation, as well as the trasmission ( 2v-belt).
    For fear of corrosion problem, I did Brown the connectite cells.
    The BMS classic ets with high and low alarm , 1 load relay and 1 relay of discharge., cell balancing.
    To complete, a good article on the technology /https LiFePO://www.Industrie-techno.com/Le-lithium-fer-phosphate-la-plus-sure-des-technologies-de-batteries-au-lithium.44982

    Kind regards

    Gael Clave – All ESE.

  3. Hello,

    thanks it is clear and this will make followers for the LiFePo4…
    In the implementation, I am interested by the “flexible” black and red of your photos. “bar” copper isolated ? with crimped tip or connector adapted ? or simply manually punctured ?

    (I got me even some difficulties to break cleanly through these bars for a table of “power”…)

    1. Hello Anne,
      These are IMHO the tresses of mass brass of a sufficient diameter/section crept in heatshrink. To avoid creeping corrosion inside these braid the humidity, sea air, Salt, It is imperative to grease them with silicone grease before putting them under sheath. We then put the end caps, crimped and if possible soldered with Tin.
      Kind regards,
      Philippe

  4. Bravo, It's clear and better “argued” that what I say in the choice of the LiFePo4.
    It's the doc Winston, so clear that tensions in 100% SoC can be different with other brands of LiFePo4 cells (Sinomoly, Calb, etc.).
    I don't speak of Valence batteries that they are special and pure Lithium.
    It has to change life on the N44, because the original Battery Park is small enough !

    Kind regards,
    Philippe

    1. Thank you Philip to have specified that curves and other data for cells WINSTON. But tell the users of other brands (CALB, SINOPOLY…) the differences seem minimal.
      You have also indicated that the life expectancy of the batteries is strongly reduced above 25 ° C: “per additional 10 ° and 25 °, the LiFePo4 have a diminished life of a quarter”. Although I find no data on this point, Some users who have installed their Battery Park in motor behavior indicates a rapid decline in their ability…

  5. Bravo,
    It's a very nice mix A&M Supelec, I learned a lot of things that will probably serve me not, but it is clear, and when one reads the implications, We understand your care to pamper your investment.
    If electric comfort is commensurate with the efforts, so bravo.
    Good luck for the rest, B + Ch

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