Originally Posted By: Raspy
Hydrogen is lighter than air. Even in a closed system it will rise up the vent pipe. But vent holes at the bottom would help.


With Hydrogen gas going up the tube where is the air coming in? it’s not because you need 2 openings.

Not without an exchange of air. It’s like a straw you dip in a glass of water. You put the straw in the water then put your thumb over the top opening and lift it out. The water will not fall out of the straw till you open the top of the straw by taking your thumb off.

It’s the same way with the gas the battery is venting. Unless you have air flow with 2 openings so the air can flow Hydrogen gas will build up.

One opening equals no exchange of air or in this case Hydrogen.

This is dangerous as Hydrogen can ignite easily with any kind of spark or flame.
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