IP65(-ish) box for DIY 48V golf cart battery?

[wpns]

Any recommendations for a DIY battery box that's rated for outdoor use? Splashing through the puddles gets wet sand all over my existing batteries, and I just hose them off, so IP65 or better? This is a Big Cart, and I'd love to have a mobile battery, so 280AH range for cell sizes.

Thanks!

 

[Partimewages]

I don't know of anything but maybe a Ridged, Dewalt or Milwaukee type. I'm assuming you're building it yourself. Pelican cases. 16 280s are going to be pretty heavy!