BYD Seal and Sealion 7 NOT playing nice with Alpitronic (Ionity) chargers in the cold?

I've noticed that both Seal and Sealion 7 have some issues with Ionity stations in the cold (-15 °C), and specifically on the stalls using *Alpitronic* chargers. Last month with the Seal I experienced the weirdest power drop in the DC charging session, where the power collapsed after 50% SOC from 126 kW all the way to only **4 kW** on Ionity in -15 C after a looong battery preconditioning (1.5 hours). Luckily the power restored to 80 kW quite soon after this sudden drop, so not a big deal, but wondering if anyone else have experienced similar? I made this video of this charging session with the Seal (23:24 onwards): [https://youtu.be/kYdirAuiMVo](https://youtu.be/kYdirAuiMVo) Then, second time, I tried Alpitronic charger with the Sealion 7 Excellence, and this time I didn't experience any plunges, but the peak power was not more than 138 kW - almost 100 kW shy of the max spec of the SL7. Also here, the temperature was quite cold (-15 C) but I had done maximum battery pre-heating before arriving to the charger (over 1 hour preheating, which the car stopped automatically after the cells were up to temperature), so would have expected to see much higher peak power, at least 180 kW. The average power that Sealion pulled was still 128 kW so not bad at all in this cold weather, but could've been even better with higher peak. This SL7 charging session is here (34:20 onwards): [https://youtu.be/QoUd\_Oyk7zM](https://youtu.be/QoUd_Oyk7zM) That Sealion's curve was actually quite interesting despite the lower peak - full charging curve graph is in the video, if you want to check it out. I got a comment on YouTube from another Seal owner mentioning issues with Alpitronic stations specifically; with Ionity ABB he gets 150 kW, but can't reach those levels ever with Alpitronic. **Anyone else who has noticed this problem?** Any guesses on the root cause? It seems that BYD EVs are still a bit picky about some specific type of DC chargers in cold weather. It reminds me of the Kempower 800V compatibility issues in Nov 24 - Apr 25 in the cold weather which blocked all charging back then 😬 - luckily the situation has improved a lot since then with the OTAs, but clearly not quite perfect yet.