Thesis Abstract

Abstract
This research project focuses on the design and construction of a 12-volt car battery automatic charger equipped with a voltage level indicator and a display for monitoring the charging process. The automatic charger is intended to provide a convenient and efficient way of charging car batteries without the need for manual monitoring. The system incorporates a microcontroller-based circuit that controls the charging process based on the voltage level of the battery. It ensures optimal charging by adjusting the charging current and voltage levels according to the battery's requirements. The voltage level indicator provides real-time feedback on the battery's voltage, allowing users to assess the state of charge accurately. Furthermore, the charging process display offers a visual representation of the charging status, including information on the current, voltage, and charging time. This feature enhances user experience by providing transparency and control over the charging process. The design includes safety features such as overcharge protection and short-circuit detection to prevent damage to the battery and ensure user safety. The system is designed to be user-friendly and versatile, suitable for various types of 12-volt car batteries. The construction of the automatic charger involves assembling the components into a compact and portable unit that can be easily connected to a car battery for charging. The device is designed to be robust and durable, suitable for both personal and commercial use. The implementation of this project offers significant benefits, including increased convenience, improved battery performance, and extended battery life. The automatic charger provides a reliable and efficient solution for maintaining car batteries in optimal condition, reducing the risk of unexpected breakdowns and extending the lifespan of the battery. In conclusion, the design and construction of a 12-volt car battery automatic charger with a voltage level indicator and charging process display present a valuable innovation in the field of battery charging technology. The system's advanced features and user-friendly design make it a practical solution for car owners and battery maintenance professionals.

Thesis Overview

1.1 PREAMBLE

Technological development in the third world nation like Nigeria should incorporate finding solutions to seemly small problems like while trying to plan for the big ones. This statement is necessary given that Nigeria having been able to launch NigeriaSat I and about to launch another code named NigeriaSat 2, would be said to be progressive in their approach to technology acquisition and indeed retrogressive applying same to solving little problems.UPS are designed so that there is one source of power normally used called the primary power source and another source that kicks in if the primary is disrupted called the secondary power source. The power from the wall is always one of those sources and the battery contains within the UPS is the other. A switch is used to control each of these powers and the equipment of any given time. The switch changes from the primary of the secondary when it detects the primary has gone out. It switches back from the secondary power the primary power, source has returned.
Contrary to what you might think, the wall A.C power is not always the primary power source and the battery the secondary source. Which source is primary and which is secondary depends on the type of UPS. Therefore, circuit is provided with this UPS to convert AC power to DC to change the battery. A device called an invert is also provided to change the battery stone DC electricity to AC to run your equipment.
Furthermore, those components of the uninterruptible power supply and other one discussed in details in the section covering the various parts of the UPS. The size of the UPS is primary dictated by the size of the time your equipment can run on battery power switching down, higher units not only can power equipment for more time they can also handle a large total demand for power.
The need for a home used charging device is timely, given that daily avoidable accidents occur on our highways due to SLI (starting, lighting and Ignition) faults in motor vehicles.
In Nigeria today there is a wide use of the 12volts Lead Acid Battery. Yet due to the side spread poverty one commuter or vehicle owner chooses to use the same battery over and over again even when the said battery has out lived its usefulness.