Battery Connection Question

[foodfightr]

On this tutorial, a guy creates a beverage cooler by using a CPU fan, at this point in the tutorial he shows his method for linking batteries together but doesn't specify how to do the wiring, could someone explain?

http://www.stud.ntnu.no/~arnesen/peltierbeer/power.html

sorry for the possibly newbie question

 

[JimPhelpsMI]

Hi, Go to Radio Shack and buy a battery box to suit the cells you wish to use. Remember the larger the cells the longer the fan runs. Alkaline or better will also run longer. The box will connect the cells in series so 1.5 volt cells will add. Six cells will be 9 volts nominal etc. Eight cells will be 12 v. Luck, Jim