Tesla has rushed out an extended battery warranty due to exposes such as:
http://lithium-ion.weebly.com
http://tinypic.com/r/7295hs/6
Which show that Tesla Batteries are an extreme danger because of the way they are configured, used and deployed. Tesla even tests them in a “blast chamber”, because they are so scared of them. Their own patent filings say they can kill you.
Now Tesla acknowledges the danger with a quickly authored battery warranty which does not actually cover burning your family or your house up.