Method: LinuxStat::Battery.charge_full_wh

Defined in:
lib/linux_stat/battery.rb

.charge_full_wh ⇒ Object

Returns the charge full WH of the battery as Integer However if the info isn’t available or there’s no BAT0 in the system, this will return nil



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# File 'lib/linux_stat/battery.rb', line 151

def charge_full_wh
    # voltage min design
    @@vmd_f ||= File.join(PATH, 'voltage_min_design'.freeze)
    v_m_d = File.readable?(@@vmd_f) ? IO.read(@@vmd_f).to_i : nil

    # charge full
    @@cf_f ||= File.join(PATH, 'charge_full'.freeze)
    c_f = File.readable?(@@cf_f) ? IO.read(@@cf_f).to_i : nil

    if v_m_d && c_f
      v_m_d.fdiv(1_000_000).*(c_f.fdiv(1_000_000)).round(2)
    else
      nil
    end
end