mock battery

This block of wood is the same size and shape of the batteries I'll be using.  A friend in the battery business has convinced me that LiFePO4 chemistry will more economical in the long run, and much more fun, than flooded lead-acid.  Sealed lead-acid are even worse.  I'll be using 30 cells of this size to start off with.  Some will go under the hood and some will go in the trunk.