Lenovo G505s battery and hanging problems

Hi Admin,
I have purchased my Lenovo laptop in the month of December last year and my laptop is also under warranty.I am facing battery charging problems from long time and approached lenovo service centre but no use.
My Laptop Details:
1)Laptop Model : G505S
2)Laptop serial number: xxxxxxxxxxxxx
Below are the problems i am currently facing...
1)Battery Charging: As per instructions from service center people, i have performed battery gauge reset process to improve my laptop battery life .But it did not help me out.To charge my laptop to 100%,it will take me generally 21/2 hour.But the laptop charging lasts only for 1 hour.Since the purchase of my laptop i have not installed any games and not even played.
Please help me to improve my battery life.
2)Hanging of applications:My laptop hangs for every 20 mins .I am not getting what is the reason for this.If i open the youtube it will work for 20 mins and youtube application hangs .If i browse in two or three windows the same problem appears.
Please help me out of this.
3)Coloured Lines appers on the screen: For the last few days i am seeing coloured vertical lines on my laptop screen.Please help me out to remove these lines.
Please do let me know if you need more information.
Thanks
Gouse
Mod edit: Removed serial to prevent abuse.

Hi Bevmatt,
Welcome to Lenovo Community!
I’m sorry to hear that your G505s Laptop is not turning ON when the Battery is plugged-In, I suggest you to perform the Flee-Power, below are the steps to perform the same:
Remove the battery and any other peripheral device connected to the computer.
Hold the power button for 10-15 seconds and then connect only the AC Adapter and try to turn ON the computer.
If the issue persists, I would strongly suggest you to contact our Technical Support for further Assistance to get the details of the nearest Authorized Service Center to get the issue analyzed.
Click here to open a link where you can select the country and get the exact contact support number. I’m sure they will be a great help.
Do post us back for further queries.
Best Regards
Shiva Kumar
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