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Repair information and guides for the iPhone 6 that was released on September 19, 2014. Model Numbers: A1549, A1586, and A1589

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While plugged to charger, will charge to 100% then stop and then drain

I have a two year old iPhone 6 and recently got the notice that the battery needed to be replaced. I had the typical battery issues of draining quickly, the percentage jumping around, and not holding a charge. I got the iFixit battery replacement, replaced it, and all was savvy but I'm still having an issue with charging the battery while connected to a charger.

What I mean is I will plug it into the charger, it will charge to 100%, then WHILE IT IS STILL PLUGGED IN, it will then start to drain at the normal rate. Essentially, I will plug it in before bed and it is at 20%, then when I wake up it will be at 80% (and the standby will be at like 4 hours) so essentially it seems like it fully charged to 100% and then gradually went down.

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Well it might have only charged to 80%. When it gets charged near the 100% start to watch it, if it hits 100 and goes down you have an issue, if you dont than there isnt any issue

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Thanks for the response Cameron! I've seen it a few times where it will charge up to something at least about 80%, then whatever "maximum" it hits, it will then start to drain normally even though the battery indicator shows it is currently charging.

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It is possible that the replacement battery is also defective. Do you have access to a known-good battery that you could try in your phone, or conversely, put your replacement battery in a known-good phone?

I suspect that you may have a problem with your charging circuit on the logic board but the most obvious thing to try first is a known-good battery.

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Unfortunately, I don't, but that is a great idea for troubleshooting. This might be a dumb question but is there a way to "reset" the charging software?

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Alison will be eternally grateful.
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