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Old 10-21-2021, 11:53 PM
pikeman99 pikeman99 is offline
Join Date: Mar 2010
Posts: 15
Default Need some help

I have a 24 protroll apex with a 250 Suzuki. I have 2 batteries for cranking. I believe they are 27's
I turn the power switch to both batteries, I am getting a low voltage about 2 hours into it. This was after brand new batteries were installed. Some gentleman at the boat ramp mentioned to me that my big motor was grounding out in the water. So i had a shiny brand new prop on it 70 hours ago. Does anybody know how I could go about grounding my motor or do I just need more of the adnoids ( not sure of the spelling) any help would be appreciated. Tight Lines
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Old 10-22-2021, 01:24 PM
TomP.'s Avatar
TomP. TomP. is offline
Join Date: Mar 2007
Location: .
Posts: 2,747

You either have a bad battery or a serous drain on your batteries, first thing I would do is charge the batteries unhook everything from them check voltage let sit for a day or two and recheck the voltage should be at least 12.5 volts ant thing under the battery is junk. I have had new batteries go bad in 30 days, if batteries check out you have a drain on the system something is pulling voltage, sitting in the water will not drain your batteries I don`t care what some guy said..
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Old 10-22-2021, 04:18 PM
x4flatfish x4flatfish is offline
Join Date: Aug 2012
Posts: 230

Your motor is already grounded. The ground from the batteries go directly to the engine block. "Some Gentlemen" don't have a clue...Something else is draining your batteries...
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Old 10-22-2021, 05:39 PM
ltrain's Avatar
ltrain ltrain is offline
Join Date: Dec 2015
Location: Northwest Indiana
Posts: 3,065

What's the prop reference to?? Are you saying your prop was shiny and now there's something going on with it? If it's graying or pitting it sounds like electrolysis, probably what the gentleman was referring to when he said grounding. You can add anodes if they are depleting but you should find out where the stay current is coming from. If you're around other boats in a marina there's usually always a problem with stray current. Check your battery charger when you plug in, look for an accidental screw going through your wiring to your hull, could also be from a loose battery connection, check not only your battery terminals but also the connections on the switch, make sure they are tight and corrosion free.

Check your grounding wires on your motors lower end. I seen when battery wires were not tight, the grounding wires get red hot, actually burnt the insulation off the wires. I'm thinking if this started right after new battery install that they're is a loose connection.
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Last edited by ltrain; 10-22-2021 at 05:45 PM.
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Old 10-23-2021, 07:54 AM
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last chance last chance is offline
Join Date: Mar 2013
Location: muncie indiana
Posts: 2,523

I think all you guys are spot on with your answers. I've owned so many old boats in my 45 yrs of boating that I've lost count. I even owned an aluminum boat., and never had a problem with any of them until the last boat. it was a 21' cobia glass boat. and if you left the batteries hooked up more than 2 days the batteries wouldn't start the motor. it was narrowed down to the trim tabs which were wired directly to the battery. so turning the battery switch off didn't help. the power was staying on draining the battery. he has to have something on or shorting out that drains his batteries.
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