How Far Should Fuse Be From Battery. I will gladly edit and make changes. 5 Jul 31 2006.

30 awg The question is should the breaker going to the battery bank from the charge controller be near the controller or the near battery bank. In the real world of boats and battery compartments this is often hard to do. This also brings up the question of whether a fuse should be installed between the battery ad charge controller.
Usually it isnt necessary as the wire has to produce the maximum current it can.
Regarding the fuse between the controller and the batteries should that fuse be also as close to the batteries as possible or should that fuse be closer towards the solar controller. Power wire fuse - How far from the battery should the fuse be installed. The battery area must be vapor-tight to the interior of the vehicle and vented directly to the exterior. Fit your isolators as John suggested.

