pilot cell

noun

1. one cell in a battery selected and tested to determine the charge or discharge current for the entire battery.

Example Sentences

When the specific gravity of the pilot cell indicates that the battery is discharged, a Regular charge is necessary.

From Project Gutenberg

The cell shown is a pilot cell, there being two of these in each battery as explained below.

From Project Gutenberg

Question the user to determine whether the ball will not come up if the pilot cell is bubbling freely.

From Project Gutenberg

An exception to this is the pilot cell of the Delco-Light Battery.

From Project Gutenberg