I have problem with acer aspire 5472

[Vishnu Pillai]

My battery drained out completely yesterday as I slept with lap still on and on battery. When I tried to switch it on today morning , only the power led blink four times and no other response.
I tried taking battery off and switching on but no luck.
Can you guys help me

 

[Saga Lout]

Leave the battery out and plug in the mains then just touch the power button for a split second. I suggest this in case the laptop may have gone into Hibernation if you're using a Windows system and didn't disable it. Pressing the power button for longer may just turn it off from sleeping and lose some data.