Using Service Controller to confirm battery status

I've been working with a support engineer on replacing an SC battery in one of T2000 servers recently, and noticed that immediately upon rebooting a server it may not be possible to get battery and fans stats because prtdiag command wouldn't work (picld daemon not fully operating yet). Turns out, there's another way to get this info - simply use #. to get back into ALOM and run the showevnironment command. Among other things, it reports battery status:
sc> showenvironment
...
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Voltage sensors (in Volts):
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Sensor          Status      Voltage LowSoft LowWarn HighWarn HighSoft
--------------------------------------------------------------------------------
MB/V_+1V5       OK            1.48    1.36    1.39    1.60     1.63
MB/V_VMEML      OK            1.79    1.63    1.67    1.92     1.98
MB/V_VMEMR      OK            1.79    1.63    1.67    1.92     1.98
MB/V_VTTL       OK            0.89    0.81    0.83    0.96     0.99
MB/V_VTTR       OK            0.87    0.81    0.83    0.96     0.99
MB/V_+3V3STBY   OK            3.33    3.13    3.16    3.53     3.59
MB/V_VCORE      OK            1.31    1.20    1.24    1.36     1.39
IOBD/V_+1V5     OK            1.48    1.36    1.39    1.60     1.63
IOBD/V_+1V8     OK            1.79    1.63    1.67    1.92     1.96
IOBD/V_+3V3MAIN OK            3.36    3.06    3.10    3.49     3.53
IOBD/V_+3V3STBY OK            3.33    3.13    3.16    3.53     3.59
IOBD/V_+1V      OK            1.18    1.09    1.11    1.28     1.30
IOBD/V_+1V2     OK            1.16    1.09    1.11    1.28     1.30
IOBD/V_+5V      OK            5.09    4.55    4.75    5.35     5.45
IOBD/V_-12V     OK          -12.11  -13.08  -12.84  -11.16   -10.92
IOBD/V_+12V     OK           12.06   10.92   11.16   12.84    13.08
SC/BAT/V_BAT    OK            3.37      --    2.25      --       --

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