Laptop Doesn't Charge, Charger or Battery Problem?

Asus u45jc-a1 laptop. My laptop charger cable is in pretty bad shape. You see the wiring broken in the wires on the top part, thus you see the grey wiring inside.


When i charge my laptop recently, the charger would go on and off. Such as charging then not charging. I then took a look and the green light on the laptop charger is green then dims then green again over and over again. So the only way i can fix this issue is unplug the other part of the 2 charger, theres 2 parts then put it back together over and over again then connect it to my laptop. Many times it has same issue. However, few times i would get it to work and thus it would be charging.


However few times it would have same issue where problem arises again. But few times however if i make sure i dont move any part of the laptop charger cable... then it would always be charging which is good and thus working. So i figure it has to be my laptop charger as you see its broken the wiring part and its mainly at the top of the wiring near the place where you plug it into laptop.


Well i then read online that it might be the battery. So I then took out the battery and just connected my charger to my laptop without the battery. Obviously it shows no battery detected... however, the laptop doesn't have an issue with the power going out. Thus it shows green light all the time on the charger.


Does this mean i have to get a new battery as oppose to a charger? First thought was charger is bad since the broken wiring in certain places and thus its in not so good condition but it has zero problems with power when battery is taken out and im plugged in.


Im going to most likely get another charger as this one is pretty bad condition but curious if the battery might be the issue.

The charger also provides AC power so doubtful that's the problem. It could be the battery or the charging circuit on the motherboard. Former is usually less than $100 to replace but the latter is much more.