Originally Posted by
kennycrudup
No, OP got in the way, and didn't even attempt to help.
Oh c'mon. Battery fires aren't simple events. If you know, with certainty, how to extinguish one, do help. If you don't, especially when you know there are people nearby who do, get out of the way and let them handle it. OP throwing a blanket over it or a bottle of water at it (both reasonable, though in this case wrong, reactions to seeing a fire) would have made this worse.