Batterys

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How can a battery hydrogen gas be dangerous?

Can collect at top of battery 10 exposed to a flame are spark

The battery shows the general charge condition of the battery

Charge indicator

During electrical energy is converted into chemical energy

Charging

When the battery changes chemical energy into electrical energy

Discharging

How can you tell if a battery is maintenance free?

Does not use removable filler cap

What is an automotive battery?

Electrochemical device that produces and stores electricity

Is a mixture of sulfonic acid and distill water

Electrolyte

What is the body ground wire for?

Ensure that the vehicle body is grounded

The first function of a battery

starting motor ignition, electric fuel injection and other electrical devices

Made up of positive plates, negative plates, straps and separators

Battery element

A 12 volt battery has six cells that produce an the open circuit of

12.6v

Forth function of a battery

Act as a capacitor that smooths current flow through electrical system

Connected to simple battery cell current flow using device

Load

What are battery plates?

Made of a grid coated with porous lead

What does a simple battery cell consist of

Negative plate, positive plate, container and electrolyte

As the battery temperature drops the battery power is?

Reduced?

Fit between the battery plates to keep them from touching each other and shorting

Separators

The fifth function of a battery

Store energy for extended periods

The second function of a battery

Supply all electrical power for a vehicle whenever engine not running

What happens to voltage and current if you connect two 12 volt batteries in parallel?

They're output voltage stays the same but their current output increases

What is the reserve compacity rating?

Time needed to lower battery terminal voltage below 10.2 volts at a discharge rate of 25 amps

What is a battery heat shield?

To keep excess engine heat from damaging the battery

Batteries can have either side terminals or top posts? True or False

True

what is a parasitic load on a battery?

any normal accessory circuit current draw present when all electrical devices are shutt off

Third function of a battery

charging the system when current demands exceed in the output limit of the charging system

What does the battery cold cranking reading indicate?

how much current the battery can deliver for 30 seconds at 0 Fahrenheit while maintaining terminal voltage of a 7.2 volt or 1.2 volts Per cell


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