Update:

I was issued a new battery in November 2018 for free. The old battery failed to hold charge, then began to swell and discolor screen. New replacement is working okay.

I was issued a new battery in November 2018 for free. The old battery failed to hold charge, then began to swell and discolor screen. New replacement is working okay.

I also had a poor quality battery. I started a support ticket but it was never resolved or replaced. Had issues with the wiring connector being incorrect size; this pressed on display back plate and caused color distortion. Though it somewhat lasted, power-wise, about 9 months before failure.

Thanks for the note Kadan. I also submitted a support request at the same time I posted this comment. I received a confirmation email and will await a response from the support team.

Upon seeing several other comments regarding the battery cable / fit issue, I wanted to share my experience with the crowd.

Declan, if you search these comments for “blue” you will see that the battery cable is not sitting flush or down far enough into the void between the battery and the logic board. My replacement battery’s cable seems to be a faulty design or incorrect size.

My cable appears to be too long to possibly re-form it to sit into place and not impact the screen. I I also had the blue dot, screen issue. I was disappointed in the replacement battery’s design compared to the OEM.

I also had the blue dot, screen issue. My battery cable length was too long and getting it to sit flush was not possible, impacting the screen negatively. I was disappointed in the replacement battery’s design compared to the OEM.

Alex, I had a similar issue with the battery cable length and getting it to sit flush and not impact the screen negatively. I was disappointed in the replacement battery’s design compared to the OEM.

Ordered the iPhone6 battery replacement kit. The kit was okay. The battery was not. The battery’s cable design is flawed. The cable extends into the logic board too far and causes issues with fit and placement.

Several others here have comment about both the battery cable and the blue spot where the cable is negatively effecting the screen. Upon first installing I also had the screen impact issue. It is noticeable when on white screens and when pressing home and bottom frame.

So the cable should orient along side the battery and then over to the right, connecting to the logic board. When taking out of the package the cable was mashed on top of the battery. I corrected to the side, but then it extended too far right.

I attempted to fix the placement of the battery cable by aligning it along the battery and then using the spudger tool to bend a radius into a small void between the battery and the logic board. This is not an ideal solution as it still impacts the screen. iFixit needs to source a better battery.