[BBray_T1296]

Stack all your batteries on one side, 10 tall with the terminals pointing out. Put the single chargers along the side, with lights visible, and cords accessible within reach of the battery shelf. Put the Triple bay charger on its side and mounted in a similar position. You could use Hook-and-loop fastener (Velcro) to adhere the chargers to a wall.

EDIT: actually looking at your dimensions, you may have to do 2 stacks of 5 batteries, placed back to back, with terminals facing away from each other. The chargers could be on one side of the block to have access to both shelves