I am setting the cell over voltage limit in CONFIG_COV register to 40 (0x28). According to the data sheet this should set the cell over voltage limit to 4.0 volts. I am seeing the cell over voltage set at about 3.75 volt rather than 4.0. Note that I am also setting the cell under voltage limit in CONFIG_CUV to 13 (0xd) or 2.0 volts. This is working correctly. Am I doing something wrong or is the data sheet wrong?