100% 电量显示为 71%

我的笔记本电脑里有两块大容量电池

电源设置显示如下电池 1：100%，电池 2：100% 总电池 71%。

我应该如何理解这些百分比？我没有裁剪只是为了显示 gs 应用程序显示相同的百分比。

upower 在电池 1 上报告以下内容

  native-path:          BAT0
  vendor:               SANYO
  model:                00HW022
  serial:               2206
  power supply:         yes
  updated:              sat 22 jan 2022 12:44:14 (34 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               fully-charged
    warning-level:       none
    energy:              18,89 Wh
    energy-empty:        0 Wh
    energy-full:         25,83 Wh
    energy-full-design:  23,51 Wh
    energy-rate:         2,53 W
    voltage:             12,721 V
    percentage:          99%
    capacity:            100%
    technology:          lithium-polymer
    icon-name:          'battery-full-charged-symbolic'
  History (charge):
    1642851854  99,000  fully-charged

使用电池 2

  native-path:          BAT1
  vendor:               SMP
  model:                01AV406
  serial:               1111
  power supply:         yes
  updated:              lör 22 jan 2022 12:50:14 (12 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               fully-charged
    warning-level:       none
    energy:              14,76 Wh
    energy-empty:        0 Wh
    energy-full:         21,18 Wh
    energy-full-design:  26,06 Wh
    energy-rate:         1,092 W
    voltage:             12,637 V
    percentage:          100%
    capacity:            68,8795%
    technology:          lithium-polymer
    icon-name:          'battery-full-charged-symbolic'

这似乎与电池磨损有关，BAT0 上的能量/充满能量为 73%，BAT1 上为 70%。