Ideal Sized Battery Box for TD 
Battery dimensions:  13" wide x 9" tall  x 7" deep 

Allow extra room at top for cables & hold down bracket. 
therefore new minimum dimensions are: 
14" W x 11" Tall x 8" deep

Mount in box: Battery, cables, charge controller
Other nearby items:  fuse panel, inverter, meter
Allow extra room for Charge controller on top. 

If mounted to exterior wall, 
* door needs to be the big side & open out.  
* if top is door, must be able to open even if mounted to wall. 

Battery should have ventilation to cool. 
Inverter needs air flow to cool. 
Everything needs protection from elements (Sun, heat, water, dirt) 
Insulation. 
Cables need some room somewhere. 
Need cable entrance hole, near terminals. 
IDEA: can put battery on drivers side water can rack & run wires in thru an existing bolt hole. At least for temp. 

Water can rack: W: 16" overall width
14 7/8" inside width
D: 7 5/8" inside depth front to back
H: 6" height at back
Top of water can: 19" from bottom of rack. 

http://td.roughwheelers.com
Dave Nathanson 9-22-2015