Configurations Available:

1 x 9 cells       ( batteries connected end to end )
16.44" L   x   2.12" W  x   3.04" H

3 x 3 cells(B)   ( batteries connected back to back )
5.48" L   x    6.36" W   x    3.04" H 

3 x 3 cells(S)   (batteries stacked on top of each other )
5.48"  L   x   2.12" W   x    9.12" H