Here is where you have to be
Here is where you have to be careful. (1) Toyota does not make a level 2 charger (2) if you purchase an "after-market" level 2 charger (your only choise since Toyota does not make one) they will now warreny any issue you have becuase it is not a toyoat charger (...but they dont make one!) I purchased a Mustart charge becuase it had good reviews and was recommened in a Forbes article.However, the Mustart charege (China) is on UL certified. After about three months of use, one of the the plastic prongs "melted" into the car charging port. It cost $700 for a new car port! make sure thre charger you but is either UL certified or TUV certifued (the German version of UL). One person told me that becuase of the 6.6 onboard charger, if you use a cheaper charger you may run into resistence issues and it could get too hot.