Do I need a battery charger? - Page 2 - SailNet Community

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Go Back   SailNet Community > General Interest Forums > Gear & Maintenance > Electrical Systems
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  #11  
Old 10-21-2013
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Re: Do I need a battery charger?

Any recommendations, I have already looked @ the ;
Morningstar SG4...
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Old 10-21-2013
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Re: Do I need a battery charger?

Hey,

Before you buy anything why not use the boat for a month or two and see how it goes? if you run your engine to get in / out of the harbor, that may provide enough power. My boat has been on a mooring forever and my batteries stay charged. I use my boat 1-2 times a week, motoring in and out of the harbor for 10-15 minutes each way. My electrical use is pretty minimal: I run a 5' chart plotter, VHF radio, depth, wind, speed instruments and an autopilot, that's about it. My batteries get charged enough from my alternator.

Barry
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Old 10-22-2013
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Re: Do I need a battery charger?

I have just completed my first season (new to sailing) with the boat and have not had an issue with the batteries. I do go a week or two sometimes not using the boat, but not being able to crank the engine when I need to is one of my concerns.

I have owned power boats for 25 years but they were always docked with charger running.

Thank you for the feedback.

Rich
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Old 10-22-2013
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Re: Do I need a battery charger?

Wet cell batteries can loose 2% a month with self discharge, 2-3 weeks of sitting on a ball will be meaningless provided you charge the batteries on the way in and they are always at least 80-90 percent full.

If winter is a non-sailing time where you are then you will need to be SURE they are topped off prior to lock up - and you better be sure your bilge is normally dry or you have the amp hours to keep it dry.

Simple, low watt and low cost solar is the way to go - no sense having a couple hundred bucks in batteries die out because you wanted to scrimp a buck on a charger.
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Old 10-22-2013
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Re: Do I need a battery charger?

Quote:
Originally Posted by rnuzzolo View Post
Any recommendations, I have already looked @ the ;
Morningstar SG4...
Genasun makes a nice line of smaller ones. This is what I have.

Genasun GV-4-Pb-12V, 4A MPPT controller for 12V Lead Acid Batteries
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