So Ive had my MBP for just under a year now and the battery is reading 48% health with 116 cycles. Occasionally the health will jump back up to 88%, but it will drop back down again soon after. I tried recalibrating last night and it didnt help, but im not sure if I did it right. I charged my MBP up and then unplugged it and went to bed. I think it went to sleep in the night even though I told it not to. In the morning it was discharged and shut off, but I dont know if it was discharging the 5 hours that apple says it needs to. Would recalibrating the battery fix this problem or is the battery itself to blame?