Automotive batteries
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AUTOMOTIVE BATTERIES PowerPoint PPT Presentation


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Battery function Battery parts Chemical actions Discharge cycle Charge cycle Battery ratings. Battery Maintenance Charging Jumping Dead Batteries Safety Increasing battery life. AUTOMOTIVE BATTERIES. Battery Safety. Acid Glasses Explosion.

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AUTOMOTIVE BATTERIES

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Automotive batteries

Battery function

Battery parts

Chemical actions

Discharge cycle

Charge cycle

Battery ratings

Battery Maintenance

Charging

Jumping Dead Batteries

Safety

Increasing battery life

AUTOMOTIVE BATTERIES


Battery safety

Battery Safety

  • Acid

  • Glasses

  • Explosion


Battery functions

Provide electricity to start the engine***

Provide electrical power to the vehicle when the engine is off

Help the alternator if the electrical load exceeds alternator capacity

BATTERY FUNCTIONS


Battery construction

BATTERY CONSTRUCTION

  • PLATES. Separators, connectors, and Electrolyte

  • Positive plates PbO2 Lead oxide

  • Negative plates Pb-lead

  • Separators

  • Element

  • Electrolyte H2SO4+H2O

    • Sulfuric acid and water

    • Wet cell

  • Battery case (polypropylene)

  • Terminals (+ LARGER & -) Two dissimilar metals

  • May be charged after discharge


Battery parts

Battery Parts


Basic battery

Basic Battery


Plate construction

PLATE CONSTRUCTION

  • Positive plates and negative plates stacked next to each other.

  • Separators do not allow plates to touch.

  • More powerful batteries simply have more plates


Battery discharge cycle

BATTERY DISCHARGE CYCLE

  • Acid reacts with plate material

  • Electrolyte increases in water content

  • Positive and Negative plates form lead sulfate

  • Negative terminal has excess electrons

  • Positive terminal has a lack of electrons


Battery charge cycle

BATTERY CHARGE CYCLE

  • Alternator forces electrons back into the battery

  • Lead sulfate breaks up

  • Reforms into acid in the electrolyte

  • Amount of water decreases in electrolyte

  • Amount of acid increases in electrolyte


Charge indicators

Charge Indicators

  • Dot

    • good

  • Dark Green

    • recharge

  • Yellow

    • replace


Battery ratings

BATTERY RATINGS

  • Cold Cranking Amps

    • CCA

  • Reserve Capacity

    • RC

  • Watts

  • Amp Hour Rating (old)


Power vs temperature

Power VS. Temperature


Battery maintenance

BATTERY MAINTENANCE

  • Remove battery

  • Disconnect (-) first

  • Clean Battery Case &Top

  • Clean Battery Terminals

  • Secure Battery Hold Down


Clean battery case top

Clean Battery Case &Top


Clean battery terminals

Clean Battery Terminals


Secure battery hold down

Secure Battery Hold Down


Charging jumping

CHARGING & JUMPING

3rd

  • Proper Connections

  • Slow Charge

  • Trickle Charge

  • Fast Charge (boost)

  • Jumping

  • Safety

1st

2nd

LAST


Automotive batteries

  • 10 - C

  • 11 - B

  • 12 - C

  • 13 - A

  • 14 - A

  • 15 - C


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