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Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have a 2003 seadoo islandia with a mercury m2 jet drive

Customer Question

I have a 2003 seadoo islandia with a mercury m2 jet drive 240hp EFI engine (jet pump).........the past two times I've taken the boat out on the wter aafter a few minutes the low battery warning beep and light comes on, .... a few weeks ago we put a doublebattery system with a switch "1, 2 or all".... also when I have the boat in the outside storage , I hook up a solar panel trickle charger and mainter from " Battery Tender" brand, so why would the batteries be both low?
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Customer: Joe rRusso
Submitted: 1 year ago.
Category: Boat
Expert:  Charles replied 1 year ago.

Hello, my name is***** will assist you.

Are you near the boat now and have access to a multimeter?

Customer: replied 1 year ago.
no i'm not near the boat, is multimeter same as the voltage meter?
Customer: replied 1 year ago.
where would I hook up the multimeter? , I can check it tomorrow morning
Expert:  Charles replied 1 year ago.

Yes, a multimeter is a VOM or a volt meter/

On the back of the ALt, you will see the large red wire. From that post with the red meter lead, the black meter lead goes to a good clean ground. Are you getting battery voltage there?

Customer: replied 1 year ago.
I will have to check tomorrow , i'm not near the boat this time........
Expert:  Charles replied 1 year ago.

That is fine, there are no time limits here

Customer: replied 1 year ago.
ok , thank you, ***** ***** volt do I set the multimeter to?
Expert:  Charles replied 1 year ago.

20V DC is you have that scale. If not, the lowest one greater than 12V DC.

Customer: replied 1 year ago.
does the boat engine or the battery switch be on or off?
Expert:  Charles replied 1 year ago.

Engine off, battery switch on.

Customer: replied 1 year ago.
ok, I will do tomorrow morning.
Expert:  Charles replied 1 year ago.

Great, talk to you then.