T&T: large batteries

[Truelove39 at aol.com]

Whoa, Denny! I don't disagree with the need for a proper charger and temp.  
sensor. But I'll question the "maintainer" and "pulser."  I am not aware  that 
the pulser has been proven; indeed they are not out 10 years yet, are  they? 
 
Moreover, I think you must describe the way your batteries were used  in 
detail before I'll accept this simplistic statement as proof of 10 year  life in a 
real-world scenario! 
 
Furthermore, I challenge you to prove that the 13.2 float voltage as  
recommended by Lifeline for their AGMs is detrimental and should be reduced to  12.8.
 
Spoiling for a spirited debate, I am 
 
Sincerely yours,
 
John
"Seahorse"
(a 10+ year user of T105s, and a 5 year user of AGMs)
 
<snip>
>Let me opine that for boat service the most bang for the buck is the  T105 
type
battery (I get mine from Sams Club, @ $67.78 for my most recent  purchase last
week)  Used with a 3 stage charge controller and a  temperature sensor (most
important) plus a battery maintainer and an anti  sulphate pulser, you will 
get
many, many years of service...
(my most  recent set that went bad was 10 years in service 
 
<snip>
 
Notice that a battery maintainer is not a trickle charger...  It is a  12.8
volt device that will keep your battery at the proper float voltage  for
longevity... A trickle charger is over 13 volts and is not good for  your
battery; manufacturers' claims notwithstanding... 



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