Small black cable into side of battery?

[Ade182]

Hi,

Just swapped my old battery out and left this unplugged as the new battery has a black cover over it and I'm not sure this cover should be removed. What is it for and should I connect it up? Car went on a lengthy drive after to ensure the battery was fully charged and I've had no lights etc. on the dash.

 

[MRBILLYUK]

Iirc , it's a breather pipe that connects to the battery to vent any gases away .

 

[Ade182]

Cheers, can anyone confirm this? Does it need to be plugged in?

 

[Ray1609]

I dont think its crucial to be connected...mine doesnt even have one!

Sent from my GT-I9300 using Tapatalk

 

[mike1pow]

Doesn't need it. Ripped mine out at the weekend

 

[DrR]

As above, it's battery breather, the fumes given off are toxic, but can't see it being a problem under the bonnet, it's not exactly air tight under there.