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From: Larry N. Brown (no email)
Date: Fri Apr 13 2007 - 10:18:48 EDT
> As usual, the wisdom of the List was impressive.
>
> The electrician visited, tested, and pronounced the house bank - 6 GC's -
> completely dead. The 4D starting battery still had some life. Thankfully,
> the inverter is fine. Of no small importance, the engine re-started
> without
> having to be primed.
>
Just one more observation (caveat?) on batteries. You can keep using the
same battery in your lawn mower until it goes dead with little downside.
Ditto a golf cart. To a lesser extent, your car also. On a boat a
catastrophic electrical failure can mean not being able to get going if
you're stopped or --in Garrett's case-- not being able to stop if you're
already going. Trying to squeeze the last month or week or day out of a
battery(bank) is not a good policy. Kinda like trying to squeeze a few more
hours out of a water pump impeller. The savings are just not worth the
potential failure.
Take Garrett's 6 GC bank. That's around $300 at Sams. If you change them out
3 times in 10 years, you've got $900 amortized out over 10 years or $90/year
for batteries that are never over 3 years old. Compare that to fuel costs,
insurance and/or slip rental. Change them twice in ten years and you've
spent $60/year, saving $30/ year for batteries that are getting precariously
close to the end of their normal service life. Trying to run them till you
coax the last charge they can take or the last engine start they can do to
save a few bucks just doesn't make sense.
Burn $30 a year less diesel and go with good batteries.
Regards,
Larry & Teri Brown
MV Cigano, 47' Prairie Sundeck
Still glued to the dock in Covington, LA
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