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It's both. They are buying batteries from suppliers in China in order to keep up with demand, but they are also working closely with Panasonic on the chemistry for the majority of their batteries. In addition they are directly funding and performing in-house research on next generation battery chemistries. We also don't have many details about this new CATL battery. Almost all Li-ion batteries are capable of lasting a million miles under the right conditions, so the devil is in the details. A true million mile battery will be able to last a million miles under most real world conditions, which hopefully both this CATL battery and the Tesla million mile battery will be able to do. I think Tesla might have a bit of an advantage there since they control the whole stack, but we will have to see.