A power gauge refers to a tool or indicator that measures the amount of power or energy available for something. It shows how much power you have left or gives you an idea of how strong or capable something is. Full definition
Additional changes include a new power gauge, an optional rear - seat armrest and new exterior and interior color choices. (hybridcars.com)
You will have to use them at the right time and manage them well, because there power gauges need to charge up. (levelsmack.com)
Aside from copper trim pieces and brake calipers, and a hybrid power gauge in place of a tachometer, the concept looks identical to a regular Bentley Mulsanne. (automobilemag.com)