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energy-full 与 charge_full 之间的单位有什么区别？

tag-icon • tag-icon hardware power-management battery
energy-full 与 charge_full 之间的单位有什么区别？

我有两个不同的最大电池能量结果：

upower -i $(upower -e | grep -i bar) | grep energy

energy:              18.061 Wh
energy-empty:        0 Wh
energy-full:         33.4021 Wh
energy-full-design:  50.7296 Wh
energy-rate: 7.30384 W

因此，据upower我了解，最大能量可能约为 33.5 瓦特*小时。但从cat /sys/class/power_supply/BAT0/{charge_full,charge_full_design}

/sys/class/power_supply/BAT0/charge_full:
2186000
/sys/class/power_supply/BAT0/charge_full_design:
3320000

我得到数字2186000，它是什么单位？焦耳？但这与上面的不一样33.5*60*60 == 120600J。那么为什么会不同呢。还有什么是energy-rate（7瓦）？现在是电池性能吗？

答案1

根据内核文档，这些值的单位是 µAh（微安时）：

~ ~ ~ ~ ~ ~ ~  Charge/Energy/Capacity - how to not confuse  ~ ~ ~ ~ ~ ~ ~
~                                                                       ~
~ Because both "charge" (µAh) and "energy" (µWh) represents "capacity"  ~
~ of battery, this class distinguish these terms. Don't mix them!       ~
~                                                                       ~
~ CHARGE_* attributes represents capacity in µAh only.                  ~
~ ENERGY_* attributes represents capacity in µWh only.                  ~
~ CAPACITY attribute represents capacity in *percents*, from 0 to 100.  ~
~                                                                       ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

https://www.kernel.org/doc/Documentation/power/power_supply_class.txt

瓦特*小时和安培小时之间的关系如下所述：https://www.rc-Electronics-usa.com/battery-Electronics-101.html

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