Controls or queries battery information.
battery [ -d ]
The battery command controls or queries the battery. If the battery command is invoked without -d option, the following battery information is displayed:
battery type: NiCd or NiMH current battery usage: charging, discharging, in use, fully charged battery capacity current remaining capacity full charge count
If the battery command is invoked with -d option, the following battery information is also displayed:
discharge quantity discharge time
If you use 50% of a battery's capacity and charge it every time (about 20 to 30 times), then the battery cannot be used at more than 50% of its capacity. This is called the memory effect of battery. If, then, the battery is discharged (made empty) and then recharged, the battery can be used at 100% again.
| -d | Discharges the battery so you can reset the memory effect of battery. |
battery
Something similar to the following displays:
battery type: NiMH current battery usage: in use battery capacity: 3200 (mAH) current remaining capacity: 1800 (mAH) [57%] full charge count: 3
| /usr/bin/battery | Contains the battery command. |