By Bret Kenwell Tesla stock has touched a 52-week low, but is that a cause for concern? Here are the upside and downside levels to know right now. Shares of Tesla (TSLA) – Get Tesla Inc. Report are in need of a recharge. Really, though, the problems with Tesla began several weeks ago when it delivered a disappointing quarterly delivery result. The stock on Oct. 3 tumbled more than 8% in reaction to that report, a move that sent Tesla below $250 support. While the stock tried to reclaim that mark the next day, it went on a five-day skid that sent it below $225. Then Tesla reported a mixed earni…