My friend gave me his laptop which is Apple laptop A1286 (MacBook Pro 15") with the charger but the head of the charger was cut. I tried to charge with another charger but, it doesn't charge.
Now, I want to remove the battery to charge it with external charger. What I mean is, to use the original charger and use the the (+)wire to the positive side in the battery and the (-)wire to the negative, but when I removed the battery I found many black wires and I didn't know which ones are positive/negative.
If anyone can help me with this issue or any way to charge the laptop without using the home of the charger on my laptop?
If I will charge the battery I will be able to reconnected again and check if it will work or the motherboard is damaged.