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battery 
Unit storing the electricity produced by the alternator and releasing it to supply the vehicle’s electric system.
plate grid
Hole in the plate coated with a porous lead-based paste that reacts in the acid solution.
positive plate
Electrode made of honeycombed lead oxide; it supports the active matter (paste) and collects the current.
negative plate strap
Component holding the negative plates together.
positive plate strap
Component holding the positive plates together.
liquid/gas separator
Ventilation device retaining the acid vapors and preventing liquid from being discharged.
separator
Porous partition separating the negative and positive plates in order to prevent short circuits.
negative plate
Electrode made of honeycombed lead; it supports the active matter (paste) and collects the current.
battery case
Box made of insulating acid-resistant material; the chemical reactions between plates are produced in it.
hydrometer
Color indicator giving information about the state of the battery.
negative terminal
Polarity element connected to the negative plates and attached to an electric cable, which connects the battery to the electric circuit.
battery cover
Upper part of the battery, sealed in the case.
positive terminal
Polarity element connected to the positive plates and attached to an electric cable, which connects the battery to the electric circuit.
