Hi, I love my Macbook. It is the 512GB m5 version with 8GB RAM. For the past few months the charge capacity on the device has been sharply declining (attachment) and now shows 'Service Battery' on the status bar. I typically would perform repairs on my tech myself but I understand the battery replacement is near impossible on this device. Apple wants me to ship my laptop to their repair center... but I don't know what the cost is going to be if at all they're willing to repair. How much will Apple charge me to replace the battery? What do you think I can get on ebay (or other marketplace) for the device? Any other info/experience is appreciated.