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Automotive Batteries. Automotive Batteries. WHAT AND AUTOMTIVE BATTERY DOES A battery supplies power to the starter and ignition system to start the engine. A battery also supplies the extra power necessary when the vehicle's electrical load exceeds the supply from the charging system. .

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automotive batteries2
Automotive Batteries
  • WHAT AND AUTOMTIVE BATTERY DOES
  • A battery supplies power to the starter and ignition system to start the engine.
  • A battery also supplies the extra power necessary when the vehicle's electrical load exceeds the supply from the charging system.
automotive batteries3
Automotive Batteries
  • Automotive batteries acts as a voltage stabilizer in the electrical system.
  • An automotive battery converts chemical energy into electrical energy
  • An automotive battery evens out voltage spikes and prevents them from damaging other components in the electrical system
automotive batteries4
Automotive Batteries
  • What the standby battery does:
  • Supplies electrical power to critical systems in the event of a power outage.
  • Acts as a voltage stabilizer, to smooth out fluctuations in the electrical generation systems.
  • Temporarily holds large electrical loads as electric utilities switch from one generation system to another.
how a battery is made
How a Battery is Made
  • How a Battery is Made
  • Batteries are made of five basic components:
  • 1. A resilient Plastic container.
  • 2. Positive and negative internal plates made of lead.
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How a Battery is Made
  • 3. Plate separators made of porous synthetic material.
  • 4.Electrolyte, a dilute solution of sulfuric acid and water better known as battery acid.
  • 5.Lead terminals, the connection point between the battery and whatever it powers.
how a battery is made8
How a Battery is Made
  • Most automotive battery containers and their covers are made of polypropylene.
  • A typical 12-volt car battery, case is divided into six sections, or cells
how a battery is made9
How a Battery is Made
  • A battery must have positive and negative plates to conduct a charge.
  • Grids or plates are made from lead or an alloy of lead and other metals.
how a battery is made10
How a Battery is Made
  • A mixture of lead oxide -- which is powdered lead, sulfuric acid and water is applied to the grids
  • Expander material made of powdered sulfates is added to the paste to produce negative plates
  • The expander material is not added to the positive plates.
how a battery is made11
How a Battery is Made
  • Pasted positive and negative plates must be separated to prevent short circuits.
  • Separators are thin sheets of porous, insulating material used as spacers between the positive and negative plates.
how a battery is made12
How a Battery is Made
  • Fine pores in the separators allow electrical current to flow between the plates while preventing short circuits.
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How a Battery is Made
  • A positive plate is paired with a negative plate and a separator to make an element
  • There is one element per battery cell
  • Elements are dropped into the cells in the battery case
  • The cells are connected with a metal that conducts electricity.
how a battery is made14
How a Battery is Made
  • The lead terminals, or posts, are welded on.
  • The battery is then filled with electrolyte - or battery acid -- a mixture of sulfuric acid and water, and the cover is attached.
how a battery is made15
How a Battery is Made
  • After a battery is made its is
    • Checked for leaks.
    • Charged for several hours.
    • Labels added
battery quiz
Battery Quiz

1. What supplies power to the ignition and the starting system

  • A. Starter motor
  • B. Battery
  • C. Alternator
  • D. None of the above
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Battery Quiz

2. What component acts as a voltage stabilizer in the electrical system?

  • 1. Voltage regulator
  • 2. Current regulator
  • 3. Battery
  • 4. Alternator
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Battery Quiz

3. How many cell is in an automotive battery

  • A. 12
  • B. 6.
  • C. 4
  • D. 2
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Battery Quiz

4. Each cell of an automotive battery will supply how many volts?

  • A. 2
  • B. 4
  • C. 10
  • D. 12
battery quiz20
Battery Quiz

5. A mixture of sulfuric acid and water is called:

  • A. Battery liquid
  • B. Battery activator
  • C. Electrical charge
  • D. Electrolyte
battery quiz21
Battery Quiz

6. There is how many elements element per battery cell?

  • A. 1
  • B. 2
  • C. 4
  • D. 6
battery quiz22
Battery Quiz

7. A battery must have ______________ to conduct electricity.

  • A. Negative plates only
  • B. Positive plates only
  • C. Positive and Neutral plates
  • D. Positive and Negative plates
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Battery Quiz

8. Most automotive battery containers and their covers are made of:

  • A. Steel
  • B. Wood
  • C. Soft plastic
  • D. polypropylene
battery quiz24
Battery Quiz

9. After a battery is made its is:

  • A. Charged for several hours
  • B. Check for leaks
  • C. Has labels added
  • D. All the above
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Battery Quiz

10. A _________ supplies the extra power necessary when the vehicle's electrical load exceeds the supply from the charging system.

  • A. Alternator
  • B. Starter
  • C. Fuel cell
  • D. Battery
battery operation
Battery Operation
  • A battery convert chemical energy into electrical energy
  • When an atom loses and electron it become a positively charge Ion
  • When am atom gains an electron it become a negatively charge ion.
  • Battery produce Voltage and Amperage.
    • Voltage is defined and electrical pressure
    • Amperage is defined as electron flow from one atom to another.
battery operation27
Battery Operation
  • When you have and abundance of negatively charge ions and a abundance of positively charged ions connected together in an electrical circuit current will begin to flow.
  • The larger the difference between the positive ions and the negative ions the greater the voltage or electrical pressure difference.
  • The greater the flow electrons from one atom to another the greater the current flow
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Battery Operation
  • Battery have two different ratings.
  • 1. Cold cranking amperage (CCA): Is the ability of a battery to maintain 7.3 volts for 30 seconds at 0 degrees F
  • 2. Reserve Capacity (RC): Is the ability of a battery to supply 10.5 volts at 25 amps at 80 degrees F.
battery operation29
Battery Operation
  • A battery stores electricity for future use.
  • A battery develops voltage from the chemical reaction produced when two unlike materials, such as the positive and negative plates, are immersed in electrolyte, a solution of sulfuric acid and water.
  • In a typical lead-acid battery, the voltage is approximately 2 volts per cell, for a total of 12 volts.
battery operation30
Battery Operation
  • Electricity flows from the battery as soon as there is a circuit between the positive and negative terminals. This happens when any load that needs electricity, such as the radio, is connected to the battery.
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Battery Operation
  • When a battery is discharge the plates have the same amount of electrical charge.
  • As a battery discharges, the lead plates become more chemically alike, the acid becomes weaker and less voltage is produced.
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Battery Operation
  • You can recharge a discharged battery by feeding electrical current back into the battery.
  • A full charge restores the chemical difference between the plates and leaves the battery ready to deliver its full power.
batteries
Batteries
  • SPECIFIC GRAVITYSpecific gravity means exact weight.
  • A "Hydrometer" or a "Refractometer" compares the exact weight of electrolyte with that of water.
  • Strong electrolyte in a charged battery is heavier than weak electrolyte in a discharged battery.
  • By weight, the electrolyte in a fully charged battery is about 36% acid and 64% water.
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Batteries
  • The specific gravity of water is 1.000.
  • Acid is 1.835 times heavier than water, so its specific gravity is 1.835.
  • The electrolyte mixture of water and acid has a specific gravity of 1.270, usually stated as "twelve and seventy."
battery operation38
Battery Operation
  • This unique process of discharging and charging in the lead-acid battery means that energy can be discharged and restored over and over again.
  • This is what's known as the cycling ability in a battery.
battery quiz39
Battery Quiz

1. You can recharge a discharged battery by:

  • A. Turning the headlights on
  • B. Replacing the electricity that has been removed
  • C. Removing the positive battery cable
  • D. Replacing the Negative battery cable
battery quiz40
Battery Quiz

2. Technician A says a fully charge battery should have a specific gravity of:

  • A. 1.130
  • B. 1.220
  • C. 1.260
  • D. 1.270
battery quiz41
Battery Quiz

3. What tool is used to measure battery specific gravity?

  • A. Milometer
  • B. Micrometer
  • C. Kilometer
  • D. Hydrometer
battery quiz42
Battery Quiz

4. Electrolyte is a mixture of sulfuric acid and _____________ :

  • A. Hydrogen
  • B. Carbon
  • C. Sulfuric carbon
  • D. Water
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Battery Quiz

5. This unique process of discharging and charging a lead-acid battery is called:

  • A. Discharging
  • B. Cycling
  • C. Overcharging
  • D. None of the above
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Batteries

Battery are rated in both cold cranking amps and reserve capacity.

Cold Cranking Amps is the amount of amperage a battery can supply at 0 Degrees while maintaining 9.6 volts for 30 seconds

Reserve capacity: The amount of time a battery can supply 10 volts at 25 amps when not being charged

batteries45
Batteries
  • When a battery becomes discharged it must be recharged.
  • A battery can be charged by the vehicle alternators or by an external battery charger
  • When connecting or disconnecting a battery charger care should be taken not to create a spark.
batteries46
Batteries
  • When connecting or disconnecting a battery charger care should be taken not to create a spark.
    • Hydrogen and oxygen can explode
    • Spark will cause a battery to explode
    • The gasses created during charging are explosive
batteries47
Batteries
  • When charging a battery always connect the positive cable first and the negative cable last
  • When removing battery cables disconnect the Negative cable first and the Positive cable last.
  • Most automotive manufactures recommend disconnecting a battery before its recharged.