A Useful app in the terminal to get the state of the battery.
Supported options are:
-V To display the current Version of apm. -v Print the current bios version and kernel driver Version. -m Display the time remaining in minutes. -M Monitor changes -s Suspend the phone. -d get a detailed View.
An example run with a almost full battery:
root@om-gta02:~# apm On-line, battery status high: 99% (45d+12:15:00)
And with details:
root@om-gta02:~# apm -d APM BIOS 1.2 (kernel driver 1.13) On-line, battery status high: 99% (45d+12:15:00) Using device 0x0a86, 1.13: 1.2 APM Flags = 0x02; Line Status = 0x01 Battery Status = 0x00; Battery Flags = 0x00 Battery %age = 99; Battery Time = 65535, use_mins=1