The gate level users may feel into the BIOS battery calibration is very troublesome, but many ASUS netbook BIOS have built-in battery calibration function, this time with the correction program under DOS to repair the battery, download and unzip the ASUS Battlfm program, and copy it to the root directory of C, into the MS-DOS window, switch to the root directory of C, then enter the battlfm.exe command, enter the information prompt window will appear (Figure 2).