Overview: When the pa-b5 is connected to a sleeping MacBook, the charger reboots approximately every 60 seconds. This causes the MacBook to chime and wake the screen showing the battery is charged.
Details: I have a 2017 15" MacBook Pro which was just serviced by Apple, so I know it’s charging is functioning properly. The MacBook sleeps fine with both a 61W and 87W Apple charger.
But, with the pa-b5 charger, the issue described above occurs after the battery has fully charged. Using a power meter to measure the charger output, it can take a few minutes after the MacBook falls asleep for the power draw to fall between 5-10W. Once doing so, the power supply will fall to 0W for approximately a second before returning to the 5-10W, causing the MacBook to chime indicating it was reconnected to power.
Aside from this being annoying, especially during the night, I have some concerns about the MacBook internal power rails having 100s of additional plug-in equivalents every night potentially causing undue wear and charging malfunctioning over time.