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AR15.COM
11/19/2010 6:36:50 PM EDT
The extra battery storage compartment has an o-ring inside.  I'm guessing its there to protect the NEG side of the battery?  Also there is some blue colored grease that I'm guessing is for anti-corrosion?  Can any of my fellow LT brethren confirm this.
11/19/2010 6:38:25 PM EDT
[#1]
I dont think that the mount will carry a current because the battery is not touching bare metal.
11/19/2010 6:49:15 PM EDT
[#2]
So whats the o ring for?
11/19/2010 6:50:33 PM EDT
[#3]
Keeping water out...the one inside keeps the battery from rattling around, and serves as a spare
11/19/2010 6:53:15 PM EDT
[#4]
There are 2 o rings...one where the cap seals and a smaller one inside.


ETA:  Gotcha
11/19/2010 6:59:36 PM EDT
[#5]
Even though it's smaller, I was able to use it years ago when I tore the primary...I used the battery, so I didn't need it in there afterwards.
11/19/2010 7:04:55 PM EDT
[#6]
Ok cool.  Thanks Mark.