Overheated drone/batteriers and lost connection with the drone

[Noexcuse]

I was out on a mission last night with the dji mavic 3 enterprices. During this mission a got a warnig for overheated batteries. And I lost the connection with the drone. The drone lowered the hight until it landed in a buch. I was 30 meter from the drone and the temp outside was -17 degree celsius. I tought it was a bit strange that it was overheated in these temeratures, and I was also supriced that it went directly down and did not return to home. Do someone has experiensed the same and what is the reason for this fail?