I have a Lenovo ideapad 310 that won't turn on without a charger plugged in and it's only been a year since I bought it and have been using it ever since. When I remove the AC adapter, the laptop immediately turns off. I am not sure if it's the motherboard or just the battery. The battery is internal and I have also tried holding the power button but it doesnt do anything but power on... I did try holding it for 2 minutes. But No reset thing happening, whatsoever. Please help me.