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These scenarios are frequently encountered in life. How to fix HP laptop battery For scenario 1, the reference to the following steps TOSHIBA PA3451U-1BRS battery TOSHIBA PA3465U-1BRS battery TOSHIBA PA3450U-1BRS battery * First boot, press "F2" to enter BIOS menu; into the Power menu. * Step into the Power menu, find the "Start Battery Calibration" option, "Battery Calibration", or "proof battery" select it, and ENTER to proceed. * Step into a blue screen and prompts in English, the notebook power adapter plug in charging. Such as the battery is full, the screen prompts disconnect the power adapter. Continued on after the laptop battery discharge until the battery runs out. * Automatic shutdown after the battery runs out, connect the power adapter charger, but does not boot. Fully charged (charging indicator goes out), the laptop battery calibration process is complete. This behavior takes about 4-5 hours! BIOS need books with this function. For scenario 2, the reference to the following steps If the laptop BIOS can not find the notebook battery calibration option. TOSHIBA PA3534U-1BAS battery TOSHIBA PA3535U-1BAS battery TOSHIBA PA3285U-3BRS battery * The first step into the "Power Options." Select the "power scheme" for the "always open", set "Turn off monitor", "Turn off hard disks" for the shortest possible time, set "System Standby" to "never" * The second step to cancel "Power Options" and "alarm" in all the alert options * The third step is set up, close all applications, close WIFI, unplug the power adapter, battery power supply. Without any extra operations, until the battery runs out after the automatic shutdown TOSHIBA PA3285U-3BRS battery TOSHIBA PA3451U-1BRS battery TOSHIBA PA3465U-1BRS battery TOSHIBA PA3450U-1BRS battery SONY PCGA-BP2NX battery Dell inspiron 1420 battery
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