Heat chamber：ambient~+150℃, the general test requirement is +70℃
Cool chamber：0℃ salt water
The EV battery performs cold and heat shocks between the hot room and cold room.
| Operating mode of DUT | Operating mode I.a |
| Lower temperature | T(min) |
| Upper temperature | T(max) |
| Holding time at upper/lower temperature | 15min following attainment of complete thermal equilibrium |
| Transition time | ≤10s |
| Number of cycles | 300 |
| Number of DUTs | 6 electronice assemblises |
