-> possibly it'd be better to take a look at doing this with marine batteries with
-> the same attention to adding them in but charging externally as we've talked
-> about...

 Now that you have laid it al lout I will Recommend a "Group 29" Deep
Cycle RV/Boat Battery. I have one I used with my Ham Equipment I got
from Wall-Mart. It is rated at 205 Ah. And you can use your Standard
Automobile battery charger with it. I only use it now days to power my
Laptop during power outages. But in my area they don't really have many.

And if you really want some Heavy duty Ah figures check out an "8D" boat
battery. :-)  :-)                                                    
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