Accidental disconnection

[dghii]

If your battery is of the AGM variety, it will not have a connection for the vent line. Lead acid batteries will either have a tube, or a port for a tube connector.

[pidj]

I'm seeing a hole on either side but the porsche attachment won't fit. It also appears to be a BLEM replacement too .... does this look like an AGM? I'll have to leave the vent tube tucked away ...

[jakeru]

Originally Posted by dghii

If your battery is of the AGM variety, it will not have a connection for the vent line. Lead acid batteries will either have a tube, or a port for a tube connector.

Don't know who told you this old wive's tale? (And you are aware that AGM batteries have lead-acid chemistry?)

Even if it's only for an exceptional circumstance, (e.g., battery or charging system malfunction), having a vent sure seems like a good idea to me when the battery is located in an area without plenty of natural ventilation, (and where sulphuric acid vapor-induced corrosion would be so damaging and expensive to repair) like is the case on our cars...

Originally Posted by SC-986

Check out this link:
https://www.amazon.com/BMW-Battery-Vent-Hose-Elbow/dp/B01L7U4MUU/ref=sr_1_fkmr2_1?ie=UTF8&qid=1503787574&sr=8-1-fkmr2&keywords=battery+vent+tube+elbow

Nice find! That looks just like what I've got on my AGM battery...

[dghii]

Originally Posted by jakeru

Don't know who told you this old wive's tale? (And you are aware that AGM batteries have lead-acid chemistry?)

Even if it's only for an exceptional circumstance, (e.g., battery or charging system malfunction), having a vent sure seems like a good idea to me when the battery is located in an area without plenty of natural ventilation, (and where sulphuric acid vapor-induced corrosion would be so damaging and expensive to repair) like is the case on our cars...



Nice find! That looks just like what I've got on my AGM battery...

Crazy. I buy two AGM's each year for our waverunners...never have vent ports.

[SC-986]

It would seem the determination of whether or not a battery has vent ports is application specific. I have SLA's in my Ram 1500 and Jeep Wrangler and they don't have vent ports.