>The batteries had a low auto-ignition temperature of 150 degrees Celsius, which meant they were highly likely to burn up in the atmosphere before reaching Eart

>The batteries had a low auto-ignition temperature of 150 degrees Celsius, which meant they were highly likely to burn up in the atmosphere before reaching Earth's surface, MfE said. The batteries contained no lead, acid, mercury, cadmium, or other toxic heavy metals. http://www.stuff.co.nz/technology/83804825/360kg-motor-assembly-to-be-jettisoned-after-rockets-launched-from-Mahia-Peninsula http://www.stuff.co.nz/technology/83804825/360kg-motor-assem...