"MacBook Pro 13 early 2015 not charging even after replacing battery"에 답변With mine, I installed the battery and charged to 100%, I thought. I only used the MagSafe light turning from amber to green to indicate that it was at 100%. This only took a couple of hours. I allowed it to stay on the charger for two more hours. Then, I booted it up and started using it. It took about 4 hours to fully discharge. I let it sit overnight before reconnecting the MagSafe. I thought it was charging but apparently not. It says it has 0 cycles, 0 mA*hrs and no information on the battery. I thought I had my battery status in the menu bar, but when I check that box, it immediately unchecks itself.