[Bug 245778] FreeBSD 13-CURRENT r360134: acpiconf -i 0 shows all zero (not detecting battery properly) on HP Spectre

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245778

            Bug ID: 245778
           Summary: FreeBSD 13-CURRENT r360134: acpiconf -i 0 shows all
                    zero (not detecting battery properly) on HP Spectre
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: neel at neelc.org

Created attachment 213626
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=213626&action=edit
dmesg on r360134/HP Spectre x360 13-ap0053dx

On a HP Spectre x360 13-ap0053dx running 13-CURRENT r360134, I get this when
running acpiconf -i 0:

root at spectre:/home/neel # acpiconf -i 0
Design capacity:        0 mWh
Last full capacity:     0 mWh
Technology:             primary (non-rechargeable)
Design voltage:         0 mV
Capacity (warn):        0 mWh
Capacity (low):         0 mWh
Cycle Count:            0
Mesurement Accuracy:    0 %
Max Sampling Time:      0 ms
Min Sampling Time:      0 ms
Max Average Interval:   0 ms
Min Average Interval:   0 ms
Low/warn granularity:   0 mWh
Warn/full granularity:  0 mWh
Model number:           
Serial number:          
Type:                   
OEM info:               
State:                  not present
Present voltage:        unknown
root at spectre:/home/neel #


Also, hw.acpi.acline appears if my system is plugged in when it isn't:

root at spectre:/home/neel # sysctl hw.acpi.acline
hw.acpi.acline: 1
root at spectre:/home/neel # 

I have attached a dmesg and will upload a DSDT log.

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