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I have a Macbook Pro Retina that I bought brand new in 2015. Its battery died and wouldn't boot. Because it's old, Apple wouldn't provide a battery in my country, so the shop bought a battery "from the market" and replaced the old one.

In System Information -> Hardware -> Power -> Battery Information, I get:

Battery Information:

Model Information:
  Serial Number:    C01514309YEF90MA4
  Manufacturer: SMP
  Device Name:  bq20z451
  Pack Lot Code:    3230
  PCB Lot Code: 3230
  Firmware Version: 2d31
  Hardware Revision:    322d
  Cell Revision:    3036
Charge Information:
  Fully Charged:    No         <---- Here!
  Charging: Yes
  Full Charge Capacity (mAh):   9054
  State of Charge (%):  100
Health Information:
  Cycle Count:  1
  Condition:    Normal

It says not fully charged, although the state of charge is at 100%. In contrast, hovering over the battery icon says fully charged, and the charger's light is green. Should I worry about it? I don't know what the old authentic battery reported.

enter image description here

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  • You should really judge the battery by how it performs.
    – benwiggy
    Oct 31, 2023 at 16:04
  • Did you reset the SMC/Pram
    – Ruskes
    Oct 31, 2023 at 16:45
  • iFixit have a battery recalibration page. I honesty don't know whether it's really needed any more [& certainly not once a month] but after you reset the SMC ↑ it might be worth trying once. ifixit.com/Wiki/Battery_Calibration
    – Tetsujin
    Oct 31, 2023 at 17:26
  • @Ruskes I don't know what the repair lab did; I didn't do anything. Not sure what SMC and Pram are, which one should I reset? I guess by following this guide discussions.apple.com/thread/8642800. nenwiggy new battery was installed yesterday. Noted Tetsujin.
    – gsamaras
    Nov 1, 2023 at 9:23
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    The battery management system probably just needed some time to understand the new battery. By using the battery it re-calibrated automatically. Glad it's working now
    – Ezekiel
    Nov 6, 2023 at 15:15

1 Answer 1

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Without me doing anything,

since I didn't use the laptop, but had it charging, now I can see via the system information, that "Fully charged" is set to "Yes", and "Charging" to "No".


If doing nothing didn't work for you, then I refer you to the comments under my question:

  • Did you reset the SMC/Pram. Google reset SMC on Mac. SMC System Management Control, it manages Battery – Ruskes
  • iFixit have a battery recalibration page. I honesty don't know whether it's really needed any more [& certainly not once a month] but after you reset the SMC ↑ it might be worth trying once. ifixit.com/Wiki/Battery_Calibration – Tetsujin

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