TH> DB>Deep cycle batteries have more watts per cubic inch, but also a 
 TH> DB>lot more dollars per watt than generic car batteries. 
 TH>  
 TH> Careful. Watts is power. Auto batters pack more 'cranking' watts than 
 TH> deep cycle batteries, but run down sooner as a result. Deep-charge 
 TH> batteries can provide more sustained current. They are also designed 
 TH> to last longer through deeper cycles, hence their name. 
Well, maybe under professional conditions, but in living off the 
grid for 20 odd years, that has not been my experience with them 
Tim.  I have hooked up my DCPC to deep cycle brand new golf cart 
cells, and *not* gotten the kind of performnace listed on the top 
of the batteries. 
 
Drawing 28 watts, 50$ in deep cycle did not run my system as long 
as 50$ in conventional 12 volt 'second/blems' type batteries. The 
latter took 50-75% more space, and wieghed 25% more.  I have mixed 
the deep cycle with the conventional vehicle cells in the battery 
banks I had, and did not find that they resisted sulphation nearly 
as well as they were spozed to, and on that account, never lasted 
the five years i was lead to expect. 
 
 TH> Also, car batteries have a higher W/H to weight ratio because their 
 TH> plates are thinner and have less spacing. Again, that's good for 
 TH> cranking a starter, but they will die a premature death if used in 
 TH> any EV application. 
I got plenty of room in the cellar Tim. I dont *care* what the 
power to weight ratio is.  I dont want them for an EV nearly so 
much as a remote off grid home. 
 DB>However: if you can find Telco substation cells,...  
 TH>  
 TH> Railroads also have similar cells. I can get 2V-340AH cells in a 
 TH> clear polymer case for $20 ea. They are used but I am assured that 
 TH> they are good for another ten years of service. Of course that 
 TH> depends on the usage. 
Terrific value! I will havta try to check into it. 
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 * OFFLINE 1.58 * I'm so far out, I got my own zipcode: 72679-0009 
--- Maximus 3.01
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