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After replacing my battery (with a battery sold at an external website) the percentage is still dropping heavily. In like 1 hour of usage and 2 hours of standby it is dropped to ~62%. Though, at a certain moment, it does not drop this fast anymore. It seems like it is not calibrated well.. On top of that, coconut battery is not able to determine battery cycle count(it says that the cycle count is still 1 after multiple charge cycles) and it’s maximum capacity. How can this be solved? Updaten (09-03-16) After contacting the reseller, i received a brand new original ’looking’ battery. It looked exactly the same as the original battery, and after 1 cycle the battery lasted as (almost) as good as before. 17hrs stand-by and 6 hours of usage. But, the problem of cycle count: 1 (cycled the battery twice now, it said 1 when i got the battery and 1 after i charged it for the second time) and the problem of unknown maximum charge is still there.. Is there anything else that can cause this problem?
I think you just need a quality battery. You could either have it exchanged from wherever you bought it from, or you could buy one from ifixit iPhone 6 Battery
Hi Daan Can you test if the battery is good? If you have multimeter check if the battery is giving you the right voltage. If the battery is good then you need to check your charging connector if it is charging the battery. You will need to test the battery too. If you don’t have multimeter to check the battery and the charging port you can check them with another working phone. Just move the non working logic board to the working housing and if the problem persist this mean you have problem with your logic board. If it is the logic board is most likely the U2 chip. You can see many videos in youtube how to replace it if you have the right equipment and skills. Hope this help
