Would this 55Ah battery do the trick for the week?

http://www.ebay.com/itm/UPG-UB12550-12V ... 1e8ae59675

Also, Amazon has this fan with a 4-pin connector. Can I just ignore 2 of those pins and plug directly into the power supply? Delta Electronics AFB1212SHE 120x120x38mm Cooling Fan, 151.85 CFM, 58 dBA, 3700 RPM, 1.06 AMP, PWM 4-pin connector http://www.amazon.com/gp/product/B004Y1HLA8?psc=1&redirect=t...

I guess I'm looking for something that will last for the week, using the Delta 120x38mm fan you use and a Magicfly DC30A-1230 12V DC 2 Phase CPU Cooling Car Brushless Water Pump. My camp has charging facilities via wind/solar, though I'm not entirely sure how much of that will be available during th...

Say, are there any batteries that will work with this that you can get from Home Depot or Amazon?