Again another bulk charging error here, its so dangerous IMHO unless you are close to the pack and have means to get the pack out of the area quickly should all go wrong, this and the last few fires we have seen on here have been caused by 2 things, bulk charging and complacency :|
If you really must charge your pack in the basement at least monitor it or use an RC charger, simple precautions, even then charge them like they are going to burn up, I have never been a fan of charging on the bike either, much better to get the pack off the bike, you can better keep an eye on it, charge it on a fire proof blanket or steel sheet, you dont loose your bike if it does let go, etc etc.
I also am not a big fan of the folded steel battery case either (sorry Greg
) I know a few have adopted this method, too many sharp edges, combined with a conductive surface, although in this instance it does seem the outer case helped prevent the spread of the fire.
I am pleased for you that it wasnt worse, I have a pack that is older but very similar in size, it is charged on a fire proof blanket, under a smoke alarm using a cell monitoring balance charger, although the more fires I see on here the more i am inclined to make a little unit out in the yard and charge them out there.
Thanks for sharing this though as more people need to know and as Luke says fires come from all types, dont think you are safe using Lifepo4 either, you may be safer but its still not safe enough to ignore, a warning for everyone....oh and only bulk charge if you monitor and have some means to cut things off if all goes to hell.