我更换了笔记本电脑的电池。电池似乎可以使用,但设计上的最大充电值高于最大充电值:
upower -i "$(upower -e | grep -P "_BAT")"
Device: /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
vendor: xxx
model: DELL xxx
serial: xxx
power supply: yes
updated: Sun 23 Aug 2020 02:08:02 PM CEST (97 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: discharging
warning-level: none
energy: 59.4776 Wh
energy-empty: 0 Wh
energy-full: 67.9972 Wh
energy-full-design: 50.9922 Wh
energy-rate: 8.4056 W
voltage: 7.934 V
time to empty: 7.1 hours
percentage: 87%
capacity: 35.7702%
technology: lithium-ion
icon-name: 'battery-full-symbolic'
这是正常的吗?其实新电池在物理上比旧电池大,但标称值这么低我觉得很奇怪。
笔记本电脑是戴尔 Latitude 5480;我使用 Lubuntu 18.04.5。新电池是兼容的,不是原装的;7.6V,68Wh。旧电池名义上是 11.4V,51Wh。