Cruising Sailors Forum Archive

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• Battery testing... any suggestions?
  • Try an auto parts store....
  • Try measuring the voltage while you crank the starter
    • So is NAPA and the like selling group 27 batteries?
      • Never mind, I see that everyone from Wallyworld to NAPA sells these.
        • AGM? I see no advantage for a starter battery
          • I use as both house and starter...
            • There're several advantages for AGM
              • NOT to mention.....
              • We get around it with a huge house bank.
              • Won't matter unless you have the charging capacity
      • Replace.. It failed. 1volt is dead flat.
      • Ck out Sam's club!!
  • Sounds like it's already failed the load test that really matters
    • I thought so too, but it could be a charging issue...
      • A GOOD idea!
      • Replace battery as last resort.
        • Agreed...
          • The standing voltage doesn't mean much.
            • Interesting results so far...
              • Just switch the batteries. You'll have your answer.
                • Agree... the simple solution.
  • Take it somewhere to test, and expect to buy a new one.
    • Could not find a date or any other "age" markings...
  • WM Should Have
    • "The real test is after you charge it and it weakly starts or does not start your engine, well there's the answer."
    • A new GRP 27 deep cycle battery is under $100
      • Thanks for the price info...
        • I bought a grp 29 deep cycle last summer for $94