Chosen Solution
hi, I was using my macbook without the AC cable, running by its battery which has no any draining issue before. After I got 4% battery, I connected the cable but it says REPLACE BATTERY NOW. as I said, the battery was perfect with its performance before this and I haven’t any trouble before. When I disconnect the AC cable, it goes off. My macbook like a new and I don’t use it much because I have iMac. What should I do please!
I could see an older model needing a new batt but a early ‘13 model shouldn’t need it for at least 3 yrs. Given the age of your system I would recommend going to Apple to have it repaired under Warranty ASAP as your time is running out (1 year without an extended Apple Care warranty).