Battery pack

Abstract

In the present invention, there is provided a battery pack including first to fifth terminal portions sequentially arrayed at one side surface of a housing, wherein the first terminal portion formed on one end side of the one side surface is a positive electrode terminal, the fifth terminal portion formed on the other end side is a negative electrode terminal, the fourth terminal portion formed adjacently to the fifth terminal portion is an ID terminal, and the fourth terminal portion and the fifth terminal portion are proximate to each other; and a guide portion for guiding the loading and unloading of the battery pack into and from a battery mounting portion is formed substantially in the center of the one side surface in array with the terminal portions, and the third terminal portion arranged centrally is formed at a position deviated toward the one end side or the other end side.

What is claimed is: 
     
         1 . A battery pack comprising first to fifth terminal portions sequentially arrayed at one side surface of a housing,
 wherein of said terminal portions, said first terminal portion formed on one end side of said one side surface is a positive electrode terminal, said fifth terminal portion formed on the other end side of said one side surface is a negative electrode terminal, said fourth terminal portion formed adjacently to said fifth terminal portion is an ID terminal for identification of said battery pack, and said fourth terminal portion and said fifth terminal portion are proximate to each other; and   a guide portion for guiding the loading and unloading of said battery pack into and from a battery mounting portion is formed substantially in the center of said one side surface in array with said terminal portions, and said third terminal portion arranged centrally is formed at a position deviated toward said one end side or said other end side.