I agree. Like having a potential bomb onboard.
There hasn't been a repeat of the fire incident but I'll bet we haven't heard the last of the lithium battery pack in those 787's.
As I understand they are putting a huge drain on those batteries. Even running electric deicers. You can imagine how much current that requires.
Perhaps Boeing went with the solid electrolyte versions of lithium battery introduced into wire-line oilfield instruments.