Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
They are sealed,but they usually have a vent hole on each end of the battery that pipe fits into. Both holes have a little plastic plug in that you have to remove then push the pipe in, you only use one hole. Once it's pushed into the hole the pipe just dangles down.
I found two holes on each short side (like a lot of images show on the net) although there were no plugs in them. I connected it to one of those, and taped the other side, although I will try finding a better plug.