Lenovo G550 does not charge battery!!!! please help!!!!! :c

So i havent used my Lenovo for about a year and a half because i had lost the originial charger. ive recently bought a new cheap charger from amazon and thought it was the charger that was the problem when i looked it up online and found out it may be a bug from Windows 7. Now, this charger does turn on my laptop, but it does not charge it. It simply says "plugged in, not charging" and when i was reading an article on how to fix this , i was trying for hours to uninstall a program under device management called Microsoft ACPI- Compliant Conntrol Method Battery, because it was said that uninstalling this would help the system charge again. but after countless hours, i found that the program reinstalls itself and i am left with a laptop that just wont charge. my laptop says 0% (plugged in, not charging) and i really need this to work for the upcoming school year. i dont know what else to do! whenever i disconnect the wire the system completely shuts down and if i dont fix this problem ill just have to get rid of my Lenovo G550, which i absolutely LOVE! please, anyone help me! do i need to install a new version of windows? do i need to uninstall something? or is my laptop absolutely done for?
please, please, please help!!!!!!!!!!!!!!!!!!!!!!!

hi Chernandez51,
Welcome to the Lenovo Forums.
From your observation, it seems like the battery was fully discharged after not being for a long time (batteries degrade overtime due to age, heat, and usage).
What you can try is to charge the battery for an hour or two while the computer is off then observe the status light indicators.
 - Link to picture
If the battery still doesn't take a charge then the battery might have gone faulty and needs a replacement.
For best compatibility, I recommend you use a Lenovo approved AC adapter and charger. You can buy one from the lenovo spare parts website (www.lenovospareparts.com) or you can buy online (eg. Amazon, Ebay, etc.) but ensure that there's a Lenovo FRU part number on the item..
- Link to picture
- Sample Battery
- Sample AC adapter
Regards
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