The present invention provides a system enabling the control of a combustion environment thereby adjusting the affect of ambient temperatures on the combustion quality on all modes of operation. The lubricant may be useful in a number of mechanical devices. The support element adapted to provide resilient support and locking engagement with the cover element of a second adjacent panel. The state of charge measuring apparatus corrects the integrated SOC at every data substitution such that the difference between the integrated SOC and the corrected SOC becomes larger, and when the integrated SOC is smaller than the upper limit SOC and larger than the lower limit SOC, the corrected SOC is displayed on the display portion as the displaying and controlling SOC. The electrical connector extends through the conductive transmission unit and the receiving chamber of the coupler to connect the conductive transmission unit and the coupler together.