ABSTRACT 

The practical importance of a battery charger in today world cannot be over emphasized. This is so as those batteries accumulators are immensely needed by out auto mobile and in science laboratories.

This thesis describes the methodical approach to the design and construction of  any battery charger. However the procedure fro developed cover the construction  of battery charger for battery sizes ranging from 6 voltage to 24volatge (heavy duty) batteries.

The prototype of a battery charger for these ranges of batteries has been implemented  following the methodical approach as outlined in this thesis and its operational test results are quite satisfactory. adequate care has been taken  in the design and construction to ensure that the resultant battery charger are both reliable and easy to use.

 

TABLE OF CONTENT 

Title Page

Approval page

Dedication 

Acknowledgement

Abstract

Chapter one  

1.0Introduction

1.1Background of the project 

1.2Aim and objective 

1.3Scope of the project 

1.4Organization of the project 

Chapter two

2.0Literature review 

2.1Battery 

2.2The storage battery

2.2.1Nikel Iron Battery 

2.2.2Lead acid battery 

2.3Indications of a fully  charged cell

2.3.1Gassing 

2.3.2Voltage

2.3.3Colour

2.3.4Charger 

Chapter three 

3.1Function block diagram 

3.1.1Power supply unit

3.1.2Ac to Dc rectification 

3.1.3Filter and regulation 

3.2Types  of carrging system 

3.2.1Half wave system

3.2.2Full wave charging system 

Chapter four

4.1Construction of battery charger 

4.1.1Power supply unit (PSU)

4.1.2Detector circuit 

4.2Components of a PSU

4.3Components of detector circuit 

Chapter five  

5.1Summary 

5.2Conclusion 

5.3Component sourcing 

5.4References.