Transcript Batteries pp

Funny battery video
http://www.youtube.com/watch?v=T
0C6wvCcPo4&feature=related
Batteries
Battery
• An automotive battery is a type
of rechargeable battery that supplies electric
energy to an automobile.
• It is charged back by the alternator.
Purpose
• 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.
• Supplies power to the electrical systems when
engine is not running.
Battery
• Automotive batteries acts as a voltage
stabilizer in the electrical system.
• An automotive battery converts chemical
energy into electrical energy
Battery
Hot weather shortens battery life more than
cold.
 Heat causes battery fluid to evaporate.
 Battery failure happens more in the winter,
due to cold starts, which puts more strain on
the battery.
Battery
• SPECIFIC GRAVITY
Specific gravity means exact weight.
• A "Hydrometer" or a "Refractometer"
compares the exact weight of electrolyte with
that of water.
Construction
Rating
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 reserve capacity is a battery's ability to
sustain a minimum vehicle electrical load in the
event of a charging system failure
Service of a Battery.
• Heavy corrosion can cause starting problems.
• Disconnect negative battery terminal
• Use baking soda and water to clean corrosion
Charging a battery.
• 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.
• Reason being, everything metal on the car is
negative
Jump Starting
Battery life
• Usually between 3-5 years, but varies.
• While draining the battery to a zero charge will not
"kill" it, it will reduce the potential battery life every
time it is drained.
• When you store your vehicle for long periods of time,
disconnect the battery at the terminal connections.
• if your battery has fluid reservoirs, you must keep
these filled
Battery life
• Over charging of battery, by vehicle charging
system or battery charger.
• Undercharging of the battery, due to fault or
stop and go traffic.
Battery inspection video
• http://www.cdxetextbook.com/electrical/prin
c/batteryMain/testbat_cable.html
Battery construction video
• http://videos.howstuffworks.com/auto/carparts-videos-playlist.htm#video-41111