Tesla Megapack 2 and Megapack 2XL 2023

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to be no different for the MP2XL. As shown in Figure 16, if the test were run on the MP2XL, the same internal components (cells and battery modules) would be tested in the same location within the cabinet (i.e., surrounded by twelve battery modules until reaching the CIB). Furthermore, given the MP2XL is larger in volume, the deflagration risk in the test would be less as the flammable gas concentrations within the battery module bay would mixing with more ambient air, and thus would be lower.
Similarly, after reviewing the MP2 unit level fire test results and comparing the MP2 and MP2XL products to one another, TÜV determined the MP2 UL 9540A unit level fire test results can be applied to the MP2XL and an additional UL 9540A unit level fire test for the MP2XL was not required for its listing. As such, given all these factors, a stand-alone MP2XL unit level fire test was not performed, nor required. The UL 9540A unit level fire test results, described above for the MP2, can be applied to the MP2XL.
Figure 16 MP2 vs. MP2XL internal components comparison.
INTERNAL TESTING AND ANALYSIS
In addition to cell, module, and unit level UL 9540A testing required for its UL 9540 listing and required to meet installation level codes and standards, such as the IFC and NFPA 855, Tesla also performed extensive internal product testing and fire modeling for the MP2/2XL. This included destructive product testing that is beyond what is required for UL product listing and is also in excess of MP2/2XL failure scenarios contemplated by Tesla. Below is a summary of some of these
FEI Project # 22035 Page 31 01/23/2023 22035-03R (MP2 and MP2XL FPE Report)