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post #1 of Old 06-01-2012 Thread Starter
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Battery Charging Assistance

Hello all,

I have a question concerning the best way to charge/maintain batteries. I recently purchased a 1998 Catalina 28, which has Battery 1 as the house battery (deep cycle) and battery 2 as the starting battery. When reading the material that came with the boat (i.e. Catalina manual), it says to leave the selector switch on Combine pretty much all the time...when charging, and when starting if both batteries are full or low. However, I have also heard to switch between batteries...moving the selector to a certain battery (2 maybe?) for starting, and once started to move to combine to charge both batteries.

What is the best solution to preserve/maintain battery charge? Keeping on combine all the time (starting, charging, using DC power at night) or switching back and forth between 1, 2, or combine? Both batteries seem to maintain a full charge and appear to be in good shape.

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