A wild hypothesis:
In-flight lithium batteries are more prone to combustion!
Could it be that the air pressure changes inside the plane could somehow contribute to battery combustion?
Or could the increased cosmic radiation be another possible cause here?
Could there be any other factors that might be in play here?
Could this unproven hypothesis have anything to do with LENR?
Some links related to the hypothesis:
https://www.reuters.com/articl…ted-idUSBRE90F1N820130118
https://www.reuters.com/articl…350-idUSBRE91E07V20130215
https://www.businessinsider.co…-million-2013-4?r=US&IR=T
https://www.cnet.com/news/burn…lights-emergency-landing/
https://www.soyacincau.com/201…re-royal-brunei-airlines/
http://blog.ravpower.com/2017/…e-batteries-rule-changes/