Originally posted by RD Blakeslee
You did the single best thing anyone can do for LiPo safety: You improved your charging environment when you started using that Pyrex dish.
RD, I don't think you really meant to imply that using the Pyrex dish is the single best thing anyone can do for LiPo safety. In fact, the Pyrex dish allowed Martimer to charge the pack in the aircraft with the dish underneath, creating a false sense of security. Dish or no dish, this could have quickly developed into an uncontrollable secondary fire.
In my opinion, LiPo packs must be fully contained in a non-combustible environment that greatly reduces the chances of secondary fires developing. Since we know that cells have been known to spew burning embers many feet from where they were resting, and have in a few instances even taken off like pop bottle rockets, an open Pyrex dish is nothing more than fool's gold.