I have emachines d732z laptop which is rarely used. When I have used windows 7, the notification panel shows "consider replacing your battery". After upgrading to windows 8, there were no such notifications. When I tried to power on laptop today, it does not turn on, the power on led and power indicator blinks with a second difference and that's all. When I connected ac adapter, the battery charging light changes from orange to blue which shows battery is fully charged. I have performed hard reset by removing adapter and battery and pressing the power button for about 1 minute and try power on with ac adapter only. The same problem of blinking power indicator happens. (After performing this several times the laptop powered on once and when I restarted, the same problem occurred and it doesnt started till now). So is this due to a faulty battery or something related to the motherboard of my computer?