By using a 240-volt circuit (such as the outlet for an electric dryer), the car might be able to receive 240 volts at 30 amps, or 6.6 kilowatt-hours per hour. This arrangement allows significantly faster charging, and can fully recharge the battery pack in four to five hours.
EXFat is just an extended version of the FAT format. Unlike FAT, and FAT32, it can support files as large as 16 Exbibytes, and can support disk sizes up to 64 Zebibytes. FAT32 only supports files as large as 4GBs, and drives as large as 2TBs.
So, if you have an exFAT SD card you will have no issues while copying full-length HD movies on it which is not the case with FAT32. Currently, Microsoft holds the US Patent 8321439 for Quick File Name Lookup using Name hash, is a method which escalates file search speed.