It's been a couple months since I've been MacBook-less now. I've had my white MacBook for about 6 years. Still in fairly good condition. A few months ago, my charger just wouldn't connect the magnet to the port to charge. I cleaned all debris from the port, and even went to the Apple store to buy a brand new charger. I got home only to find out the issue persisted. The charger just won't stick! What's the problem here? Is it because the battery has officially died? Thank you.