SERVICING AUTOMOTIVE BATTERY

Introduction

     Battery is the main source of the electricity of an automobile. Automotive battery consist of 34% sulfuric acid and 66% water which is called electrolyte. It has also different parts. (See the image below) And there are two type of battery the Conventional Battery which has flooded electrolyte and is very accessible. These batteries have to be carefully and periodically maintained. You will need to add distilled water from time to time to prevent the battery from sulfating. Water loss is a normal characteristic of this type of battery because of the high temperature inside, and the process of electrolysis and evaporation. This means the fluid level of the battery needs to be checked on a regular basis. And the other on is the Maintenance Free Battery which should  should never be topped up, therefore there are no filler caps on top. The filler cap is replaced by an over-pressure valve that is normally closed. Any gas that forms ends up being recombined in the cell as water. This way there is always sufficient electrolyte in the battery.

                                                                     LEAD ACID BATTERIES

 

   

 

Task

Matching Type

Identify the tools or devices used in checking the voltage of a batter, its charge and meaning.

 

1. HYDROMETER

2. MULTI-METER TESTER/MULTI TESTER

3. BATTERY LOAD TESTER 

4. An instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats.

5. Also known as a volt/ohm meter or VOM, is an electronic measuring instrument that combines several measurement functions in one unit.

6. It work by applying load and monitoring the voltage and current of the battery. 

       A.   Multimeter - Wikipedia        B.ATEC - 6/12 Volt Battery Load Tester - 43745132 - MSC Industrial Supply    C.Coleman Cable 992 Float Ball Premium Hydrometer Battery Tester (085407209928-1)

 

Lastly perform how to test and check battery voltage and charge by using the following tools or devices. (Multi meter, Battery Load Tester, and Hydrometer.)

 

 

Process

Before doing the actual activity in Servicing Automotive Battery the learners must observe the following steps:

1. Wear Personal Protective Equipment (PPE) before doing the task.

2. The battery must be disconnected to any connections or circuit.

3. Place the battery in a good place or leveled place.

4. Use hydrometer to test the specific gravity of the electrolyte and record its reading of every cell.

5. Use Multi meter and Battery load tester to identify the current voltage of the battery.

Evaluation

 

                        EXCELLENT

                           5 POINTS

                                                         GOOD

                                                       4 POINTS

                                     FAIR

                                 3 POINTS

SCORE

PROPER ATTIRE

Wear proper PPE all the time until finishing the task

Wear proper PPE but removing it while performing the task

Does not wear all the needed PPE in doing the task

 

NEATNESS

Perform the 5S after the task

Not cleaning the place after the task performed but bringing all the tools to its proper place

Forget to bring back all the tools to its proper place

 

PROPER USE OF TOOL & DEVICES

Use the tools accurately and record the readings

Using the tools accurately but not record the readings

Does not use the tools properly and  not record the readings

 

Conclusion

At the end of the lesson/web quest it is expected that the learners know what are the different types of automotive batteries. And they can use some devices or tools that can be used in measuring battery voltage's charge. Also they are expected to identify what the tools or devices they are using in testing and checking battery's voltage and use it accurately.

Credits