kestrel
PATRON
Southern NH
What are you seeing for temps there?
I originally installed in the winter and saw temperatures like this for a taxi and take-off (which produced the highest temperatures):
Knowing that warmer temperatures were coming, I updated the installation with cool air and saw a significant reduction in temperatures:
In warmer weather I saw this:
I did a lot of watching, but stopped recording screen-shots because it was never getting too hot. The installation is still a very open box that I think could be done much better, but it is working well as is.
It is worth noting that the 140F temp limit is for a battery that is under load/self-heating. Earth-X recognizes a higher limit for a batter that isn't doing much (forgot what it is, but is is mentioned in the EAA video I previously linked) and they are generally not concerned about installations on the engine side of the firewall (with due consideration for direct exposure to high exhaust heats).
http://www.eaavideo.org/detail/vide...30349001/webinar--lithium-batteries-explained
The thermal runaway temperature for the LiFePo4 is 518F and is considered "Very safe battery even if fully charged":
http://batteryuniversity.com/learn/article/types_of_lithium_ion