No Bueno #nauticinderella #chriscraft

No Bueno #nauticinderella #chriscraft

No Bueno #nauticinderella #chriscraft

Posted by Cindy Chebultz on Saturday, November 19, 2016


13 replies - (see the "source" link above to see all the comments)
  1. Jon Haskell
    Jon Haskell says:

    When you replace the batteries, you need to replace all that are tied together at the same time.
    They should all be the same manufacturer and sizing, etc.
    You should even insist on having the same production lot numbers if at all possible.
    Whenever there’s a difference in capacity, right down to plate surface area, and battery “health”, it causes the batteries to fight each other, both while charging, and discharging,
    That’ll kill off the better ones more quickly, since they’re taking the hit for the weaker one(s).
    I agree about sticking with the lead acid type, and follow the instructions on when to top them off, and how much to fill them. (lots of misinformation out there on that)

  2. Chris Nigh
    Chris Nigh says:


    Are those wired in SERIES? It looks like I see 3 x 12 volt batteries and they would appear to be wired in series. If this is the case, and the system is /supposed/ to be 12 volts, everything hooked to this bank will pull a LOT more current and likely burn out things. I am not surprised the terminal melted down.. Thats way more current than that is designed to handle!

    Is this the starting bank and is this the way they have been wired, long term and/or are the engines supposed to be 36V?

  3. James Evans
    James Evans says:

    12, 24, and 32 are the common start system voltages. 32 volt systems usually use 4 8-volt batteries. I haven’t seen the 3 12-volt set up before. If that’s not original then you might have some charging problems. An alternator voltage regulator set to charge a 32 volt system will be to low to charge a 36-volt battery bank. Maybe you have a special voltage regulator.

  4. James Evans
    James Evans says:

    The logic behind the 3 12-volt batteries could be this: One of the 12 volt batteries, the one closest to negative (ground) is used for suppling 12 volts for accessories such as instruments and maybe some electronics, Obviously this upsets the bank charging pattern but as long as the load is light it works. Heavier loads like cabin lights, toilets, radars, water pumps, etc need a seperate “Ship’s [House] Service” battery with its own charging system. I’d guess that the engine instruments are 12 volt. I don’t know where the bilge pumps are fed from.. I saw a similar case on this board a few years ago when the issue was a tap made on one of set of 8 volt batteries for the same purpose. E-mail me for more discussions.

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