[MarAgt]

Is that just a storage box?  What's w/the hole in the top?  You'd think if it's a storage box you'd want to keep stuff inside dry.

[NMKawierider]

The Zs have three, one is open storage...no top, one is for a second battery-that one has a lid with a vent and a bottom drain, and one has the main fuses- it's sealed on top but has a drain on the bottom I believe..

[impact]

I keep rope and tow strap in mine. Stuff that I am not too concerned about getting wet. You can also put your items in a seal-able pouch if concerned. I have a large tote with lid in the dump box at the back as well so plenty of storage.

[MarAgt]

Thanks!  It looks like it is probably designed to be the battery box you're speaking of.  The lid is vented (open) and the bottom has a drain.  Guess I'll just enjoy the extra storage space.

The Zs have three, one is open storage...no top, one is for a second battery-that one has a lid with a vent and a bottom drain, and one has the main fuses- it's sealed on top but has a drain on the bottom I believe..

[MarAgt]

Thanks!  I threw my tow strap in there as well and some other stuff.  Like you said, I'll put whatever I want to keep dry in the heavy duty (freezer style) ziplock bag. 

I keep rope and tow strap in mine. Stuff that I am not too concerned about getting wet. You can also put your items in a seal-able pouch if concerned. I have a large tote with lid in the dump box at the back as well so plenty of storage.