What is battery

battery hydrometer

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.

battery (BAT)

Glossary “battery (BAT)” Definition:
A device for storing energy in chemical form so it can be released as electricity. It provides current for the starting system and current to all other electrical devices when the engine is not running.