12v marine battery in series with 12v deep cycle

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  • almac
    Solar Fanatic
    • May 2015
    • 314

    #16
    Originally posted by Bala
    The new batteries are probably just a cheap start battery with a marine 4x4 sticker on the. I would not use them in my boat or 4x4.

    They will die quickly with this kind of discharge and load.
    according to SKs sticky batteries marketed as marine with an RC rating is a hybrid. i doubt SCA are going to ruin their brand perpetrating fraud. anyone stuck out in the pacific ocean with a dead SLI battery they bought from SCA marketed as a marine would quickly see SCA out of business. i now have a 160ah 24v hybrid bank so the discharge on the coffee machine would be c/3. also according to SKs sticky a discharge for hybrids up to c/2 is ok

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    • Sunking
      Solar Fanatic
      • Feb 2010
      • 23301

      #17
      Originally posted by almac
      according to SKs sticky a discharge for hybrids up to c/2 is ok
      Say what?
      MSEE, PE

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      • almac
        Solar Fanatic
        • May 2015
        • 314

        #18
        Originally posted by Sunking
        Say what?
        * Hybrid Batteries .. but on the charge/discharge side of FLA hybrids you can go as high as C/4, and some cases C/2. This makes them very useful for folks who use over sized Inverters or have to use high charge rates because of low Sun Hours in winter.

        just what i need

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        • Bala
          Solar Fanatic
          • Dec 2010
          • 734

          #19
          Originally posted by almac
          according to SKs sticky batteries marketed as marine with an RC rating is a hybrid. i doubt SCA are going to ruin their brand perpetrating fraud. anyone stuck out in the pacific ocean with a dead SLI battery they bought from SCA marketed as a marine would quickly see SCA out of business. i now have a 160ah 24v hybrid bank so the discharge on the coffee machine would be c/3. also according to SKs sticky a discharge for hybrids up to c/2 is ok
          No one in their right mind would use that battery for Marine or 4x4. For the same physical size you can more cca and ah in a quality semi sealed calcium type battery. Those are own branded sca, or in full super cheap auto. Sca would not be liable if they fail other than to replace a faulty item.

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          • inetdog
            Super Moderator
            • May 2012
            • 9909

            #20
            Originally posted by Bala
            No one in their right mind would use that battery for Marine or 4x4. For the same physical size you can more cca and ah in a quality semi sealed calcium type battery. Those are own branded sca, or in full super cheap auto. Sca would not be liable if they fail other than to replace a faulty item.
            +1
            They have no particular liability if you choose to use the wrong kind of battery, even if it is based on their naming of the battery.
            SunnyBoy 3000 US, 18 BP Solar 175B panels.

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            • almac
              Solar Fanatic
              • May 2015
              • 314

              #21
              Originally posted by Bala
              No one in their right mind would use that battery for Marine or 4x4. For the same physical size you can more cca and ah in a quality semi sealed calcium type battery. Those are own branded sca, or in full super cheap auto. Sca would not be liable if they fail other than to replace a faulty item.
              im not using it for as a marine battery, you stated its an SLI which it is not. its a hybrid. physical size does not matter because im not using it in a 4x4 . price matters its cheap, its working well, its only discharging to 80% overnight, recharging to 1.260 within 2-3hrs.

              here are a couple of reviews using similar batteries from SCA for running fridges and other accessories .

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              • Sunking
                Solar Fanatic
                • Feb 2010
                • 23301

                #22
                Originally posted by almac
                * Hybrid Batteries .. but on the charge/discharge side of FLA hybrids you can go as high as C/4, and some cases C/2. just what i need
                No at your price point and not made in Down Under.

                There are only two manufactures I know of that make an AGM that can even remotely handle C/2 for any given length of time, and you do not have them unless they are Concorde Aircraft Military grade or Optima Blue Tops.
                MSEE, PE

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                • almac
                  Solar Fanatic
                  • May 2015
                  • 314

                  #23
                  Originally posted by Sunking
                  No at your price point and not made in Down Under.

                  There are only two manufactures I know of that make an AGM that can even remotely handle C/2 for any given length of time, and you do not have them unless they are Concorde Aircraft Military grade or Optima Blue Tops.
                  ok, by "any length of time" do you mean sustained? how about 15secs bursts like using an 1800w (75amp at 24v) chainsaw

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