Post
Wed Sep 26, 2012 10:17 pm
It's not the battery that can explode - it's the car, after you've filled the boot with hydrogen.
You can adapt the more simple vent pipe from many later BMW models (pipe just goes through a rubber grommet in the floor to the open air) if you don't have the box. Needs a little plastic elbow that plugs into the end of a suitable battery and pushes into the pipe.
I discovered that batteries produce hydrogen many, many years ago, when I disconnected the crocodile clip of a battery charger from the battery (under the driver's seat!) of a mini pick up. Spark from the clip, a sort of dull reddish light, a blast of heat and a 'Whummmph' sound. Fortunately one of the front doors was slightly ajar, and the blast blew this wide open instead of doing more serious damage.