Just one quick note;
a battery does not like to be shocked, or bumped around. Hitting holes w/ the forklift can cause the oxidized lead to fall from the plates to the bottom of a cell. This will inturn short (or partially short) the cell, reducing the overall voltage.
This is how the fires start when using the older chargers, it also is not good for the truck ( the bumps or the lower voltage)

Its a skydive weekend!!!!!!!!!!!!!!!!!!!!