@flashlight I may have overheated my brass TS10. The battery wrap shrank.
I used it continuously in candle mode @ high with the original silicone diffuser for a video shoot, and found the battery looking like that, opening the light right after stepdown (and almost burning my fingers).
Toykeeper herself confirmed that the strobes have no thermal regulation.
https://budgetlightforum.com/t/wurkkos-ts10-ti-v2-much-more-aggressive-thermal-stepdown-compared-to-regular-ts10/220508/48