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.
What Microsoft developers have basically done is update the FAT32 file system to exFAT, moving from 32-bit addressing to 64-bit addressing, to offer an improved speed alternative over moving to NTFS at the same time making it possible to create, store or transfer huge files, files greater than 4GiB.