Join Date: May 2002
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I replace my house batts when there starting to go. That is when they won''t hold around 12.3V or so,however, since you plan an extended cruise, you should definatly replace them before you leave.I''m sure batts are much cheaper here.
Think about going with multiple 6V batts instead of 12V batts. They hold up better in the heat and humidity,there are less cells to worry about, they hold more liquid in their cells, their easier to handle,they can be split into multiple banks(six 6V batts can be three banks eight can be four etc.),the amp hours are cheaper, weight can be more evenly distributed and you can get more ah per bank.To me it''s a no brainer.
If you can swing it, may I also strongly suggest you fit your yacht with a wind turbine.It doesn,t make sense to me to run a ten thousand dollar diesel to charge a few hundred dollars worth of batts over and over again.
Hope this helps.