12v or 24 system

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bls-fla

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I have a 1990 Gulfstream 232 and am suffering a confusing day. I have twin 2000 Yamaha 150 HPDI motors. I have two batteries and two battery switches. The batteries are 24 volt, but the motors and stereo gear are 12 volt. I have an electronics background, so I understand the difference. Is this a factory setup or a mod or am I just crazy? I've owned the boat for years and have changed batteries before but for some reason I'm just noticing this. This is embarrassing but I gotta know.
 
bls-fla said:
I have a 1990 Gulfstream 232 and am suffering a confusing day. I have twin 2000 Yamaha 150 HPDI motors. I have two batteries and two battery switches. The batteries are 24 volt, but the motors and stereo gear are 12 volt. I have an electronics background, so I understand the difference. Is this a factory setup or a mod or am I just crazy? I've owned the boat for years and have changed batteries before but for some reason I'm just noticing this. This is embarrassing but I gotta know.
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My bad, the batteries are not 24 volt, they are Type 24. I knew I should be embarrassed about posting that question.
 
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