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iFixit Replacement Battery Stays Charged Less Than 3-4 Hours; Help?

Hello Rogue Repairfolk,

I replaced a dying battery in an iPhone 7 Plus on Tuesday with the iFixit repair kit/replacement battery. Phone turns on fine. Phone charges (it is an official Apple charger, just in case this is relevant) up to 100%. After replacing it, we calibrated the phone just to be sure.

But now the phone goes from 100% charged to 0% in about 3-4 hours of use (over the course of an 8 hour work day). I know assumptions are dangerous with electronics, but I am assuming that the connectors are fine since it DOES charge, it DOES turn on, and DOES work, but just refuses to hold that charge.

Not sure what I should do next outside of sending the battery back to iFixit and getting another battery. I am hoping there is something else I can do that would allow me to fix this issue in a timely manner.

Thanks for the help (if anyone can),

Pete

Answer this question I have this problem too

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This question was migrated from https://www.ifixit.com/Answers.

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Alright, lets test the battery before sending you off to customer support. Complete the guide I have linked below. Make sure that you upload a screenshot of the coconutBattery window to your existing guide!

[invalid guide link]

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I didn't see how to insert an image into a comment, so I included it in an answer below. Hoping commenting here alerts you to it. Thanks again for your aid in this. I'm baffled right now.

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Hi Aaron,

Thank you for the timely response. Am I reading this right? That this battery I just bought only charges to 51%?

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Thanks again,

Pete

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@javajava 51% is your devices current charge. The battery appears to be charging to 100% design capacity. I will refer you to Meta now as this is a part related problem. Once we get 3 votes on migrating this question to the Meta you will be zapped over to Meta.ifixit.com

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Okay, thank you Aaron. Appreciate it.

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Paul Vakerling will be eternally grateful.