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Charging Optima D27F with 5 AMP CTEK

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  • Charging Optima D27F with 5 AMP CTEK

    Hi Guys

    Just wondering if someone can confirm if a 5AMP CTECK will be sufficient to charge an Optima D27F battery? The battery is fine, however i have noticed my fridge is only lasting 4-8 hours.

    I would like to use a CTEK MXS 5.0 to charge the battery and see if this helps.

    Cheers

  • #2
    Hi Puck, that charger will charge your Optima, but if your battery is flat, your charger will need at least 14 hours to fully recharge your battery.

    Comment


    • #3
      Agreed but that is a long time spent on bulk charging. Can you run it in your prado for a bit first to pump some real amps into it and then finish-off with the CTEK?
      Cheers
      Micheal.

      2008 GXL D4D Auto. GOING... GOING... GONE
      2015 GXL 1GD Auto. And it begins again...

      Comment


      • #4
        Why not just leave it on charge over night. Should be enough to op it up.

        Comment


        • #5
          Hi Michael, it is actually quite a good practice to give a battery a long low current charge. The obvious draw back is the time it will take to fully charge a low battery.

          The lower the charge current, the better the battery absorbs the charge, and you actually need less energy to fully charge a battery.

          This last point is not that important when charging with a battery charger, but can be significant when using solar to charge a battery.

          High current charging of any lead acid battery will waste a lot of energy, but this is a trade off when charging time is limited, like when driving.
          drivesafe
          Senior Member
          Last edited by drivesafe; 10-08-2017, 01:04 PM.

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          • #6
            Only concern is the ctek may timeout and report the battery as faulty. In the past I've had to use a dumb old charger to put charge in then let the ctek finish off

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            • #7
              Great thanks everyone, i got the CTECK and now charging the battery.

              Cheers

              Comment

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