Originally Posted by
TBM-Legend
Saab 340 start temp limit 47C and aircraft has a Hotel mode for ground ops including aircon...
The take-off performance chart limit is 47C.
The battery temp limit was 57C, where above is only approved for GPU start. Above 71C batt temp no start at all.
They moved from Ni-Cad to lead acid batteries a few years ago. Those limits no longer apply with the now lead acid installation as there is no thermal runway risk.