MOST ESSENTIAL LESSON IN AUTOMOTIVE TECHNOLOGY
GRADE 9
SPECIALIZATION COURSE
Quarter 1 Week 2 Module 2
1- SERVICE AUTOMOTIVE BATTERY
LO2.
OPERATION AND SAFE HANDLING OF
AUTOMOTIVE BATTERY
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LESSON: PROPER SAFE HANDLING OF BATTERY
EXPECTATION:
 Safe handling of automotive battery is observed
 Observed hazards associated with battery.
 Compare battery test result based on manufacturer’s specification
 Observe safety at all times while doing battery maintenance
PRE – TEST
Direction: To determine prior learning, select the correct answer by writing the letter
on the blank provided on each number.
1. A type of battery which do not have removable caps.
A. maintenance free battery
B. low maintenance battery
C. 3A battery
D. b and c
2. This type of hydrometer is similar to ball type coolant hydrometer.
A. ball hydrometer
B. flat hydrometer
C. barometer
D. a and b
3. When working around the battery be sure to:
A. disconnect the negative first
B. disconnect the positive first
C. never disconnect the terminals
D. a and b
4. The battery is considered as the heart of the
A. Engine
B. Power train unit
C. Electrical system
D. Charging sysyem
5. The following are battery hazard, except
A.battery Acid
C. Electric shock
B. Flammable
D. Light weight
6. During cranking period, the system that need initial current to start the engine
a. starting system
b. Charging system
c. igntion system
d. Lighting system
7. When cleaning the battery top terminal for corrosion, battery cables must be
A. negative terminal disconnected
C. Negative terminal Connected
B. both terminal cables connected
D. Both terminal cables disconnected
8. The electrolyte in a battery is corrosive and it can burn the skin, eyes, eat holes in
clothing and
A. engine parts
C. Accessories
B. car paint
D. Etch the concrete floor
9. Bringing metal into contact when working with batteries is
A. permitted
C. not permitted
B. allowed
D. both a and b
10. Wearing of PPE in working or dealing with the battery is
A. required
C. not required
B. optional
D. both c and d
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LOOKING BACK TO YOUR LESSON
Visual thinking approach - Identifying the component parts of battery
BRIEF INTRODUCTION
The Automotive battery is considered as heart of the electrical system. It supplies
electric current to operate the starting motor and ignition system while starting the engine. It
also supplies current for the lights, radio, and other electrical accessories while the alternator
is not handling the load. Since battery is an electrochemical device the current produced is
derived from chemicals inside, as it used continuously, the battery charges is depleted –it
rundown and is discharged. In order to maintain the good state condition, battery maintenance
and testing is importance.
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LESSON 1: Proper safe handling of Automotive Battery
OBJECTIVE:
1. Identify hazards associated with batteries
2. Perform proper safe handling of battery
3. Observe safe handling of batteries
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LEARNING CONTENT
Four main Hazards Associated with Battery
A. “Battery acid: the electrolyte in a battery is
corrosive and it can burn the skin or eyes,
eat holes in clothing or even etch on concrete floor.
B. Flammable gases: batteries emit hydrogen gas,
this is flammable. It ignites easily and can cause a
fire or explosion if allowed to accumulate in
a small place.
C. Electric
danger,
because
when
jumper
shock: many of us aware of this
D. Weight:
heavy duty
require proper
equipment to
Batteries like those used in a
vehicles, are heavy and
material handling
lift them safely
we may have seen sparks fly
cables are attached to car battery.
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SAFE HANDLING OF BATTERY
1.Avoid bringing metal into contact
when working with batteries.
2. Never allow both terminals to make contact with
yourself. When both terminals are engaged, an
electrical current will pass through anything
touching them.
3. Do not hand-guide battery during
lifting/moving. This will place you in
danger if the battery were drop or shift.
4. Practice safe and appropriate lifting
procedure. Do not lift the battery with
unprotected hand into contact with the
battery.
5. Wear personal protective equipment
(PPE) when working with battery.
6. Make a seminar or training before
working in thebattery in order to maintain
a safe working environment.
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