Craig Roberts
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- Aug 29, 2001
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For anyone running 2001 and newer Optis, Mercury is suggesting adding another battery to isolate your motor from the accessories. Things like bilge pumps and livewell aerators create a huge draw on your cranking battery (which should be at least 1000 MCA, by the way). This could have been a contributing factor in some powerhead failures. So, add another cranking battery with an a/b switch, or another deep cycle battery, hooked up to a battery charger(prefered method).
Craig
Craig