I ordered a new battery from iFixit back in June and it dies between 5-13%. I've tried an SMC reset, PRAM reset, leaving the battery dead for 24 hours then charging it back up again with no success. I've tried multiple AC adapters too. The battery only has 62 cycles on it and it shouldn't be doing this. iFixit claims the battery is operating at normal parameters. In addition the battery percentage will jump all over the place while running solely on the battery when it gets below 30%. I'm not happy. I've asked them to replace the battery under their 1 year warranty and they are refusing. The battery health is jumping all over the place too from 102 to 112%. I've used multiple battery apps to assess its condition will all of them reading the same inconsistencies. I'm posting this to inform people.