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      07-03-2016, 11:37 PM   #1
Greg220
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Drives: E90 335i
Join Date: Apr 2005
Location: Seattle, WA

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Should I plug one of the vent holes in the battery?

I replaced the car battery a few years ago and today I realized that one of the two vent holes in my battery is open. There is a vent tube connected to one of the holes but the hole on the other side of the battery is open. Should I plug it and if yes, is duct tape sufficient or do I need an actual plug?
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