There is a general thought that a dedicated thief will defeat any lock. So a simple padlock may be sufficient to slow down the casual thief. Believe you can drill a hole in each side of the battery box that will facilitate the use of a lock on either side.
Alternative approach - the electrical system has parasitic loads that run down the charge while in storage. So pulling the batteries and taking them home would be one method of protecting them from theft. It would also allow a periodic charge to keep the batteries above 50% to extend their life. Alternatively install a disconnect switch to cut the parasitic loads.
Best approach - you can eventually replace with AGM and relocate the batteries to inside the trailer, but that costs a bit. If you do, upsize the conductors.
You can use your insurance, but at $100 deductable, you still take a hit.
Good luck with your considerations. Pat
|