Bartlettei - The design I am using with the 48-inch side mount diamondplate tool box has a three-inch sink drain (Lowes) mounted to the foward lip you see below adjacent to each battery installed. It also has a drain hole in the bottom of the box in a couple of places close to edge.
My box will sit on top the tongue frame sitting on round hard rubber bushings. It also will have Blue Sea 9001E four position battery switches installed in the front extended lip area. Battery cables will come into the box from the bottom area through rubber grommets. The lip area on the inside manages the battery cables, blue Sea fuse blocks, Blue sea 5/16-inch terminals blocks, and ANCOR battery cables using ring terminals, etc.
Nice design and LOCKABLE to keep the batteries from growing legs...
Photo from google images
This is where my tool box design came from GILLDAWG79 from the JAYCO Forum
Photos from gilldawg79
* This post was
edited 06/06/12 01:03pm by RoyB *
My Posts are IMHO based on my experiences - PM me Roy and Carolyn
RETIRED DOAF/DON/DOD/CONTR RADIO TECH (42yrs)
K9PHT (Since 1957) 146.52M
2010 F150, 5.4,3:73 Gears,SCab
2008 Starcraft 14RT EU2000i GEN
2005 Flagstaff 8528RESS