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Old 11-13-2008
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A good list Bill.
Quote:
Originally Posted by btrayfors View Post
As best I'm able to discern, through formal testing and thru personal experience, for boats at dockside much/most of the time I believe it's best to:

1. use a smart battery charger only, and preferably one which uses pulse width modulation (PWM) technology...like the Iotas;

2. leave the charger on all the time (assuming that you have reliable dock power and that you have a properly installed AC system and battery charger);

3. equalize the batteries at intervals recommended by the manufacturer. Note that the PWM chargers like the Iota MAY reduce the need for equalization;

4. exercise the batteries periodically, drawing them down to not more than 50% of capacity and then fully recharging them;

5. use ONLY distilled water to be sure the electrolyte is at least 3/8" above the plates;

6. use Hydrocaps or WaterMiser caps to reduce the need for adding water;

7. keep all connections very clean and tight;

8. be extremely careful not to introduce contaminants into the battery cells; and

9. monitor battery voltage periodically, with and without charging and load.

Sound like a lot of work? Not really, just a little attention on a regular basis.

Bill
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
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—Cpt. Mal Reynolds, Serenity (edited)

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