ABSTRACT

This project is a power bank for laptops, and it is designed to serve as a back up to a laptop whenever there is no power supply and it has a variable knob which controls the output voltage to a desired value. The problem is that we carry different chargers for different gadgets. Though the cost of producing is more costly than the normal chargers we have around but it can serve as a reliable backup considering the problem and solution above a power bank for laptop charger is needed in day to day activity especially people who are very busy and work extensively with mobile gadgets such as laptops, notebooks, palmtops etc. However human wants are insatiable but we believe this project will serve its purpose well to satisfaction of the user. Power Banks are comprised of a special battery in a special case with a special circuit to control power flow. They allow you to store electrical energy (deposit it in the bank) and then later use it to charge laptop via the laptop charger. This device composed of _____12,000 mAh lithium-ion battery, a DC-to-AC inverter, and a standard 220-volt Nigeria wall plug on the front.

TABLE OF CONTENTS

TITLE PAGE

APPROVAL PAGE

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

TABLE OF CONTENT

CHAPTER ONE

1.0       INTRODUCTION

1.1       OBJECTIVE OF THE PROJECT

1.2       SIGNIFICANCE OF THE PROJECT

1.3       SCOPE OF THE PROJECT

1.4       LIMITATION OF THE PROJECT

1.5       APPLICATION OF THE PROJECT

1.6       PROJECT ORGANISATION

CHAPTER TWO

2.0       LITERATURE REVIEW

2.1       OVERVIEW OF THE STUDY

2.2       REVIEW OF THE RELATED STUDY

2.3       REVIEW OF BATTERY CHARGER

2.4       HISTORICAL BACKGROUND OF THE STUDY

2.5       REVIEW OF DIFFERENT TYPES OF RECHARGEABLE BATTERY

CHAPTER THREE

3.0       CONSTRUCTION

3.1       BASIC DESIGNS OF THE SYSTEM

3.2       BLOCK DIAGRAM OF THE SYSTEM

3.3       CIRCUIT DIAGRAM OF THE SYSTEM

3.4       DESCRIPTION OF COMPONENTS USED

3.5       PARTS LIST 

3.6       CIRCUIT DESCRIPTION

3.7       SYSTEM OPERATION 

CHAPTER FOUR

RESULT ANALYSIS

4.0       CONSTRUCTION PROCEDURE AND TESTING

4.1       CASING AND PACKAGING

4.2        ASSEMBLING OF SECTIONS

4.3       TESTING OF SYSTEM OPERATION

4.4       COST ANALYSIS

4.5       ECONOMIC OF THE PROJECT

4.6       PROJECT VIABILITY

4.7       PROJECT RELIABILITY

4.8       PROJECT MAINTAINABILITY

CHAPTER FIVE

5.0       CONCLUSION, RECOMMENDATION, REFERENCES

5.1       CONCLUSION

5.2       RECOMMENDATION

5.3       REFERENCES