I’ve had a Lenovo IdeaPad P500 laptop for about 5 years now, and it recently just stopped charging. It won’t even turn on or charge when I have it directly plugged in. My question is, do you think I need a new battery for it, a new power jack, or both? It didn’t suffer any physical damage, it just simply stopped charging.
If it will turn on and run when plugged in, just not on battery, then I would look into a new battery.
I would, however, recommend you avoid aftermarket batteries. While they may seem like a good deal (price wise) they are also very much a hit or miss option. It is very easy to get one that claims it will work, doesn't or will not last as long as it should, or have other issues. So keep that in mind when purchasing a new one.