Battery relocation kit

[Brads70]

I thought the whole reason for a "box" was to vent any gases (hydrogen) from the charging of the battery to be vented outside the car. Is that not a concern Goody?

  That's why I went with the sealed Moroso battery box and vented it thru the floor. 

[GoodysGotaCuda]

I thought the whole reason for a "box" was to vent any gases (hydrogen) from the charging of the battery to be vented outside the car. Is that not a concern Goody?

It's been like that for ten years and haven't seen and side effects from it. 

[61K T/A]

I guess you developed a tolerance or liking to it. 

[61K T/A]

My Optima doesn't gas unless it's being over charged.

[YellowThumper]

Dry cell (ie Optima) batteries are noted to be ok without venting. Mine has been several years and no issues noted. As in seeing any changes in the "patina" inside my trunk surfaces.

2ga wire is too small. The $$$ investment for at minimum 0ga is worth it. Have heard that welding cable is the best option. Again have heard the the many smaller strands actually provide less voltage drop. You can get red welding wire. That is what I used.
Note that voltage drop is due to resistance. Resistance then causes heat...
X2 on soldering the connections. These are your main connections to all the workings of your car. Current is always flowing 1 direction or the other. Weak connections never get better.
If car remains the absolute basic then you may get many years out of it. But any newer upgrades will all require rock steady power to eliminate issues. Electronics do not do well competing for power. This includes many solid grounds to eliminate signal floating.

Start with a solid electrical footprint and you can build anything on top of it without wory. From electric fans to thumping stereo.

Mike

[RUNCHARGER]

Welding cable is what I have used in the past. I agree, you cannot take a chance undersizeing cable.