Glossary “battery hydrometer” Definition:
Tests the state of charge on batteries with removable cell caps. It measures the specific gravity of the battery acid (electrolyte). A specific gravity reading of 1.270 indicates that the cell is fully charge, while a reading of 1.100 indicates that the cell is discharged.

Glossary “battery maintenance” Definition:
Generally, preventative maintenance, such as visual inspection, adding water, cleaning top and terminals, tightening hold down, and testing.

Glossary “battery rating methods” Definition:
There are several rating methods: cold cranking power rating, reserve capacity rating, and twenty-hour rating.

Glossary “battery terminal” Definition:
A means of connecting the battery to the vehicle’s electrical system. The three types of battery terminals are post or top, side, and “L.”

Glossary “battery discharge” Definition:
Flow of electrical current from the battery.

Glossary “battery efficiency” Definition:
A battery’s ability to vary the current it delivers within a wide range, depending on the temperature and the rate of discharge.

Glossary “battery element” Definition:
1). A cell. 2). A group of positive and negative plates assembled with separators.

Glossary “battery holddown” Definition:
A bracket that secures the battery to the chassis of the vehicle

Glossary “battery cell” Definition:
That part of a battery made from two dissimilar metals and an acid solution. A cell stores chemical energy for use later as electrical energy.

Glossary “battery charge” Definition:
The restoration of chemical energy to a battery by supplying a measured flow of electrical current to it for a specified time.