MagSafe indicator light

Because the battery may not yet be fully charged since the charging percentage displayed by macOS on the menu bar is usually off by 3% or so. I know this because I have used a command line utility to monitor the raw battery information in order to troubleshoot & test the Apple batteries.

You can see this for yourself by running the following command in the Terminal app to see the actual charging state & amount of current being used. When the battery is fully charged, the current will show 0mA. This command will update the information about once a minute until you terminate the command by pressing Control + C while that Terminal window has focus.

pmset  -g  rawlog  |  awk  -F";"  '/AC/  {print  $2  $7  $3}'

I tested this on an M-series Mac. It likely won't work as written for an Intel Mac although it could be modified to do so. Unfortunately Apple has ruined the information provided by the "pmset" utility when used to display power & battery information on an M-series Mac....only some of the information is useful or accurate (it was fine on an Intel Mac). I'm using a filter to only display the information relevant for showing the true charging status by viewing the raw batter/power data. The output should look something like this (I'm on battery at the moment, so the current (mA value) is showing a negative value indicating the battery is draining):

hwtech@HWTechs-MacBook-Pro % pmset -g rawlog | awk -F";" '/AC/ {print $2  $7  $3}' 
 Not Charging -221mA 66%
 Not Charging -203mA 66%

The percentage charge value shown should be the same incorrect value as that displayed on the menu bar. Because of that You will probably see something like this as the battery reaches 100% charge:

 Charging 200mA 100%
 Charging 150mA 100%
 Charging 100mA 100%
 Charging 50mA 100%
 Not Charging 0mA 100%
 Not Charging 0mA 100%

The Battery Max Capacity value shown by macOS 13.x+ is also inaccurate when manually computing it from the raw information provided by the command line utilities extracting the information from the battery...in fact the "Max Capacity" seems to vary by 3% - 6% or so from my observations (I've only just started closely examining the information since it is not so easy with the M-series Macs since it requires creating a script to parse the information).

I believe these discrepancies have been intentional in order to allow macOS enough time to hibernate the system when the battery nears 0% charge due to how the battery's Full Charge Capacity fluctuates....the fluctuations tend to increase as the charge level nears 0%. As for the Max Capacity difference....I suspect it may be due to how the battery's Full Charge Capacity fluctuates and perhaps so that Apple can say a battery is in a good state until it reaches a Max Capacity of 80% (in reality it is probably 77% ....maybe with the M-series Macs it may even be 75%).

the power indictor can stay Amber MUCH longer, sometimes essentially permanently, when your Mac Is using battery health mangement to maximize battery lifetime (possibly at the expense of worst-case battery RUN-time).

AndyHGI wrote:

Why is battery is fully charged (100%) and MagSafe light is stay orange light. Only turn green lights after I unplug and plugged in the power.

device MBP

See if there is anything here—

If your MagSafe cable or power adapter isn't working

Rebooting and A SafeBoot Use safe mode on your Mac - Apple Support will sort many anomalies