2019 MacBook Pro battery installation and use issues.

Hello. In my 2019 MacBook Pro, the battery was completely depleted and it is having problems with flashing on the Touch Bar. I can deal with the flashing on the Touch Bar but the depleted battery makes the computer nearly unusable as a laptop. I took it to the Apple Store to see what they could do. Unfortunately, they stated that the computer is now old enough that they don’t service them anymore. I decided to go and get a battery myself on Amazon and, with the help of the instructions which came with the battery and a YouTube video, I was able to successfully replace the battery myself. Let me tell you, it’s not easy. Now when I fully charge the computer and use it on battery power, I get about six hours or so of charge out of it. I run it so that the battery indicator is at about 30% and then I shut the computer down completely to leave overnight. When I turn the computer back on, it starts out at 30% but immediately runs down to 1% and alerts me that it requires to be plugged in. In system settings, the battery health states that it’s normal. I’m wondering what is going on here and if there’s anything anybody thinks I could do to improve performance or at least the computer‘s ability to properly read the charge on the battery. Thank you in advance! Googling various issues with Apple products has many times brought me to the Apple discussions which have been helpful over the years.

MacBook Pro 15″, macOS 15.7

Posted on Dec 22, 2025 5:27 AM

21 replies

HWTech

Level 9

68,792 points

Dec 22, 2025 4:57 PM in response to MikeWilliams311

MikeWilliams311 wrote:

A lot of the conversation at the Apple Store was around the fact that both the battery was depleted and the touch bar was malfunctioning. I think the elephant in the room for the Apple Store employee was the touch bar situation. He said that they would no longer service that and then referred me to one of our local Apple certified fix it places. And then that place indicated that they would have to source the parts as Apple did not supply them anymore, if I remember correctly. At that point, if I just would have gotten the battery done it was going to be about $300. If I would have wanted a top case replacement which would’ve had to have been sourced and then repaired in their shop, it sounded like I was looking at an excess of $500.

This is what happens when Apple glues everything to the Top Case/Palmrest Assembly. It makes a simple repair very complex. The Battery is glued to the underside of the Palmrest & Trackpad so the entire Top Case/Palmrest Assembly is replaced by Apple when performing a "Battery Only" repair so even the Touchbar & Keyboard would be automatically replaced with it.

The tricky part comes to quoting the repair. Do they quote it as a Battery Only repair for $250 US or do they quote it for the Touchbar repair which is $500+ US? The exact same part is being replaced for both repairs. I would have insisted on the Battery Only price since the battery is why you brought it in, not the Touchbar issue.

From what I've seen users report here on this forum, it seems most Apple Stores & AASPs quote the more expensive option whenever there is a choice to be made.

FYI, At least with many of the M-series Macs (at least the later ones), the Battery is now considered a separate part from the Top Case Assembly although it is still attached by adhesive strips.....these adhesive strips are pull strips making it easier to separate, but these pull strips tend to break a lot so it is not necessarily much easier to replace.

Allan Jones

Level 9

78,020 points

Dec 23, 2025 10:20 AM in response to MikeWilliams311

Re "calibration." Apple withdrew all calibration recommendations when they changed to laptop batteries that require a screwdriver to access. That was about 2009 but don't quote me.

However, third party batteries may need calibration. In OWC install videos for the batteries they sell, they recommend calibration after installation.

Dec 22, 2025 12:36 PM in response to Allan Jones

Oh well. I guess next time i’ll do a little more research before I make the decision. Lesson learned.

Dec 22, 2025 12:40 PM in response to John Galt

“Just use it. I’m sure it will be fine.“. That sounds like good advice. I’ll take it! Thank you.

Dec 22, 2025 1:23 PM in response to HWTech

I was not aware of any battery calibration procedure.

Dec 22, 2025 2:01 PM in response to Grant Bennet-Alder

Yep, that sounds consistent with the tone of the conversation.

2019 MacBook Pro battery installation and use issues.