机器型号及设置

2018 款 MacBook Pro 13 寸，macOS v10.15.7 。

设置、节能、电池健康、电池健康管理为打开状态。

现象

上周升级到了 macOS v10.15.7，周五盒盖放着，周六周日两天放着未使用。

周一开，电量 50%-60%之间，接上电源，因为当时提示未在充电，还特意看了下，电池状态为正常。

之后电池电量一直持续下降，当中多次命令行查看电池状态。

ioreg -rn AppleSmartBattery | grep -i capacity

倒数第二次

"AppleRawCurrentCapacity" = 11
"AppleRawMaxCapacity" = 4419
"MaxCapacity" = 4419
"CurrentCapacity" = 11
"LegacyBatteryInfo" = {"Amperage"=18446744073709550569,
"Flags"=5,
"Capacity"=4419,
"Current"=11,
"Voltage"=10500,
"Cycle Count"=312}
"DesignCapacity" = 5088
"BatteryData" = {"StateOfCharge"=1,
"PMUConfigured"=1528,
"Voltage"=10541,
"QmaxCell1"=5093,
"AdapterPower"=982685254,
"SystemPower"=1094616315,
"ResScale"=117,
"QmaxCell2"=4932,
"QmaxCell0"=4985,
"CycleCount"=312,
"DesignCapacity"=5088}

最后一次

"AppleRawCurrentCapacity" = 0
"AppleRawMaxCapacity" = 4432
"MaxCapacity" = 4432
"CurrentCapacity" = 0
"LegacyBatteryInfo" = {"Amperage"=18446744073709550570,
"Flags"=5,
"Capacity"=4432,
"Current"=0,
"Voltage"=10443,
"Cycle Count"=312}
"DesignCapacity" = 5088
"BatteryData" = {"StateOfCharge"=0,
"PMUConfigured"=1528,
"Voltage"=10424,
"QmaxCell1"=5093,
"AdapterPower"=1015541310,
"SystemPower"=1092802811,
"ResScale"=117,
"QmaxCell2"=4932,
"QmaxCell0"=4985,
"CycleCount"=312,
"DesignCapacity"=5088}