MacBook Pro battery

 ioreg -w0 -l | grep Capacity
    | |           "MaxCapacity" = 4255
    | |           "CurrentCapacity" = 4137
    | |           "LegacyBatteryInfo" = {"Amperage"=496,"Flags"=7,"Capacity"=4255,"Current"=4137,"Voltage"=12554,"Cycle Count"=282}
    | |           "DesignCapacity" = 5600

Ouch. Off to the Apple Store.

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