I am designing my own waterproof passthrough from my battery box to the electronics box. The photo below shows what I have planned.

I will bore holes, one for the positive and one for the negative wires to pass through from one box into the second box with a waterproof XT60 for disconnecting.
I will bore a 3/16" hole in each of the boxes, two holes per box. Install short pieces of 3/16" brass tubing in each hole secured with CA adhesive. 14 GA wire with silicone covering fit very nug inside the brass tubing, then I will slide a piece of silicone tubing that fits snuggly on the silicone wire and the brass tubing. Very tight fit and I am quite sure it will be leak proof..
I may also add additional silicone sealant at the points where the brass tubing exists the box wall.
Rob
"Firemen can stand the heat."
I will bore holes, one for the positive and one for the negative wires to pass through from one box into the second box with a waterproof XT60 for disconnecting.
I will bore a 3/16" hole in each of the boxes, two holes per box. Install short pieces of 3/16" brass tubing in each hole secured with CA adhesive. 14 GA wire with silicone covering fit very nug inside the brass tubing, then I will slide a piece of silicone tubing that fits snuggly on the silicone wire and the brass tubing. Very tight fit and I am quite sure it will be leak proof..
I may also add additional silicone sealant at the points where the brass tubing exists the box wall.
Rob
"Firemen can stand the heat."
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