A fire with 15 racer batteries is completely contained by the BAT-SAFE. The exterior surface temperature barely rises at all. Read the test article at http://www.propwashed.com/lipo-battery-container-testing/
0:07 first cell ruptures (about 12m into overcharge)
0:17 second cell ruptures
0:40 first visible smoke
1:18 second smoke plume
2:35 third plume (barely visible)
3:15 surface temp still about 100F
3:30 review results (about 12m later), surface temp about 110
