HI i have problem i see the battery When my battery is below 50% (more or less) and the laptop is off, when i power it on, and it is NOT with charger on, it starts normally and when i see the log in screen, i see the battery on the down right corner on the percentage that it was before i shut it down, and sudenly goes to 0 and shuts down.any help for this issue i have format 2-3 times reinstall all drivers bios update but the problem stiil