Re
http://www.pprune.org/tech-log/50569...ml#post7662369
Just a simple question. How cold does it get in those battery bays? The diagram you show indicates that the cathode can break down and short circuit not a lot below zero.
The aircraft has flown a long way at high altitude and then parks at Logan in January (not the warmest spot). Could cold temperatures in the electronic bays cause a problem?