Using thewrongcharger on alkaline batteries can be downright dangerous. This work is aimed at building an automatic battery charger which comprises of indicators that indicates charging process and charging level indicator. Few modern electrical appliances receive their power directly from the Utility grid like National Electricity Power Authority (NEPA) or Power Holding Company of Nigeria (PHCN), while a growing number of everyday electronic and electrical devices require electrical power from batteries in order to achieve greater mobility and convenience. It is reversible by charging and discharging several times. Finding the rectifier diode and DC regulator for this charger was not an easy task. Computers are non-resistive hence for computer applications VA rating is used. It was observed over time that most commercial battery charging service centers in town (Enugu, Nigeria) that are patronized by automobile drivers uses the conventional battery charger type that is built without an automatic charging cut-off circuit to provide charging services to their customers. Design and Construction of 12v Battery Charger This is because alkaline batteries have long shelf lives and do not suffer the memory effects of Nickel-cadmium batteries. The unused area essentially films over and acts as a barrier to current flow. This study was carried out to solve problems such as not knowing when a battery is fully charged. This project is on a 12 24volts automatic battery charger with full charge control. A battery charger may be specified in terms of the battery capacity or C rate; a charger rated C/10 would return the battery capacity in 10 hours, a charger rated at 4C would charge the battery in 15 minutes. This charger can only be used for 12 to 24v batteries. 4.2ii AC/DC Converter Unit Design And Construction Of 12V Battery Charger - Samphina The system consists of a step down transformer, an AC to DC converter and a DC voltage regulator. This type of device is important because there are many rechargeable devices that use 12 or 24v battery. Download free project topics and research materials from A1Project Hub. construction of a 12v automatic battery charger The rate of self discharge in Nickel-cadmium is about 2% per week, in Nickel-metal hydride it is about 3% per week. The organization of the project report is well detailed and vast in its coverage. In order to achieve ten times extension of the normal life of an everyday alkaline battery, you will have to recharge it frequently, many more times than ten. The system consists of a step down transformer, an AC to DC converter and a DC voltage regulator. Construction Of A 12v Battery Charger | ProjectStoc At the end of the project we were able to produce a pure sine wave 5KVA inverter with an AC output of 220v, 50hz with a tolerance of 5%. The biggest setback experienced during the course of this project is financial difficulties in funding the design of the project. Sorry, preview is currently unavailable. How to build Simple 12 Volt Car Battery Charger Circuit The rate of self discharge in Nickel-cadmium is about 2% per week, in Nickel-metal hydride it is about 3% per week. What is the operating principle of a battery charger? We introduced asmart or intelligentbattery charger that does not only recharge batteries but conserves AC electrical energy and as well save the battery life. Further charging does not restore the active area. Batteries that are not recharged before use will not supply the full amount of stored energy. The introductory chapter goes a long why in defining the battery charger and explanations of the mode of operations will be death with as we proceed. A.A Ndubuisi) in his 1999 article describes a battery charger is an electrical and electronic device that is used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it. The battery bank was designed to be charged with power from the mains power supply or a standby power generator. There are different types of secondary battery, namely lead acid, Nickel-cadmium and silver zinc battery. The circuit is economical and can be easily constructed from discrete electronic components. The charging time was approximately 2 hours 30 mins with adapter and 1 hour 15 mins with solar charging. For a 1.6Ah battery, C = 1.6A. Furthermore, we received a severe electric shock while trying to plug in the workbench power supply to test our design and that made us to almost give up. Consider a one more scenario of an application which runs for more than a day or two. The unused area essentially films over and acts as a barrier to current flow. If you read the warning labels printed on ordinary batteries, you will observe that a NiCad charger should never be used on alkaline batteries. It makes sense to use alkaline batteries while powering electronic systems even though they are difficult to recharge but they do not have a self-discharge. This was a capstone project of mine where I researched on electric vehicles. Chapter two presents the literature reviews. It is not advisable to use it on rechargeable batteries above 12V. These products will become useless if there is no charger to refill their battery when it runs down. The PV system was designed with a 19200Watt-hour battery bank that is made up of eight 12V/200Ah deep cycle lead acid batteries. Having carefully selected the entire component that are required for the construction of the charger and built according to the circuit diagram we were able to design and construct a workable battery charger. Most battery chargers require human attention say Chu, Kim-Chiu the writer development of intelligent battery charge (1989), from the University of Hong Kong, but in this project, an automatic battery monitor is used to reduce human attention to about 85 per cent to eliminate overcharging of batteries. Also there is no internal resistance connected in the battery charger to limit the short circuit current. I recommend that device should not be used for any other device lower or higher than 12v rating. The PV system was designed with a 19200Watt-hour battery bank that is made up of eight 12V/200Ah deep cycle lead acid batteries. This unregulated DC voltage is fed directly to the DC load (in this case, the battery) via a relay. A battery charger may be specified in terms of the battery capacity or C rate; a charger rated C/10 would return the battery capacity in 10 hours, a charger rated at 4C would charge the battery in 15 minutes. Battery Charger Circuit Using SCR. Appliances that use rechargeable batteries include everything from low-power mobile cell phones to high-power industrial fork lifts. The device has been designed, tested and system was able to respond to its operation. A trickle charger provides a relatively small amount of current, only enough to counteract self-discharge of a battery that is idle for a long time. TABLE OF CONTENTS Approval Hire A Writer For MSC/PGD (Standard Plan), Hire A Writer For MSC/PGD (Professional Plan), AGRICULTURAL ECONOMICS AND EXTENSION PROJECT TOPICS, ELECTRICAL ELECTRONICS ENGINEERING PROJECT TOPICS, FISHERY AND MARINE TECHNOLOGY PROJECT TOPICS, GEOLOGICAL AND CHEMICAL SCIENCES PROJECT TOPICS, ISLAMIC AND ARABIC PROJECT TOPICS AND MATERIAL, MATHEMATICS AND STATISTICS PROJECT TOPICS, MICRO-BIOLOGY PROJECT TOPICS AND MATERIALS, OFFICE TECHNOLOGY MANAGEMENT PROJECT TOPICS, OIL AND GAS/ PETROLEUM ENGINEERING PROJECT TOPICS, PUBLIC RELATION/PUBLIC ADMINISTRATION PROJECT TOPICS. The system consists of a step down transformer, an AC to DC converter and a DC voltage regulator. Some battery types have high tolerance for overcharging and can be recharged by connection to a constant voltage source or a constant current source; simple chargers of this type require manual disconnection at the end of the charge cycle, or may have a timer to cut off charging current at a fixed time. The majoraim and objective of thisproject is to design and construct a battery charger that can be use to charge any kind of 12v rechargeable batteries including alkaline, NiCad or lead acid batteries. NOTE: Preview the following Table of Content before you download the full content. Chapter six is the summary and conclusion which includes the summary of achievements, problems encountered during project design, recommendation and suggestion for further improvement. If you wish to download the Construction Of A 12v Battery Charger complete Project material, you have to donate in order to keep this website running. Save my name, email, and website in this browser for the next time I comment. 4.3 The Circuit Diagram and the Operation of Components The charger is intended to charge battery terminal voltage up to 12v. Appliances that use rechargeable batteries include everything from low-power mobile cell phones to high-power industrial fork lifts. By using our site, you agree to our collection of information through the use of cookies. A battery charger is a system that draws energy from the grid, store it in a battery, and release it to power a device is called a battery charger system. Very rapid charging rates, 1 hour or less, generally require the charger to carefully monitor battery parameters such as terminal voltage and temperature to prevent overcharging and damage to the cells. These products will become useless if there is no charger to refill their battery when it runs down. The Chapter One of Construction Of A 12v Battery Charger ends here. The circuits are designed using copper wire, rectifier diodes, electrolytic capacitors, resistors with other passive and active component of electronics. We introduced a smart or intelligent battery charger that does not only recharge batteries but conserves AC electrical energy and as well save the battery life. They often ignore how much energy is consumed in the process of converting ac electricity from the utility grid into dc electricity stored in the battery. Alternating (AC) Current currents that have a harmonic time dependence. If higher current had been drawn or if the battery had been completely discharged, the whole active area of the anode would have been involved. While designers of battery chargers often maximize the energy efficiency of their devices to ensure long operation times between charging. Some of the components we used for this project were very difficult to find. IOSR Journal of Electrical and Electronics Engineering. This work is aimed at building an automatic battery charger which has the ability to automatically cut-off the charging process when the battery voltage reaches the required optimum level with the help of the contact relay. Few modern electrical appliances receive their power directly from the Utility grid like National Electricity Power Authority (NEPA) or Power Holding Company of Nigeria (PHCN), while a growing number of everyday electronic and electrical devices require electrical power from batteries in order to achieve greater mobility and convenience. The primary known as dry cell is one whose electrolyte dries up when used, its ampere-hour rating can not be recharge while the secondary type known as wet cell is the one whose chemical energy can be restore through a charging process. Using the wrong charger on alkaline batteries can be downright dangerous. Working on this topic as my project is a good idea and it comes at the right time. A system designer in ADACC ( Engr. A battery charger is an electrical/electronic device used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it. In this project, a sophisticated class of battery charger is designed not just to refill rechargeable batteries but to conserve the battery life because wrong handling and charging of a battery can permanently damage the battery even if is brand new. Some battery types have high tolerance for overcharging and can be recharged by connection to a constant voltage source or a constant current source; simple chargers of this type require manual disconnection at the end of the charge cycle, or may have a timer to cut off charging current at a fixed time. Please, do not copy this Construction Of A 12v Battery Charger materials word for word. Share (Construction Of A 12v Battery Charger) On: (A Case Study Of Citizens International Bank Ltd). All rights reserved. 5.3 Component Used and their Price. This includes the component of the system, the theory, design procedures and calculations involved during the sizing, design and installation of the system. As with any charger it must be housed in a clean environment and operations should be by will trained individual. CONSTRUCTION OF A 12V BATTERY CHARGER - Final Year Research Project The amount of data that needs to be stored in case of internet servers has grown from 20Tbps in 2001 to 100 Tbps in 2003. You may also cite this Construction Of A 12v Battery Charger work if, properly paraphrased. The problem stems from low battery currents which flow from only a small part of the active anode area of the battery. 1.2 Statement of the Problem A simple 12volts charger works by supplying a constant DC or pulsed DC power source to a battery being charged. It also contains other sections like power supply, voltage regulation and the control section, which can be highlighted in the subsequent chapter. The system testing was first carried out accordingly in a laboratory setting. Search, download or share academic files, Study Of Controlling Of Customers Account By The Commercial Banks, Need For Sourcing And Supplier Development In An Organization, Traditional Institutions As Instruments For Rural Development. The introductory chapter goes a long why in defining the battery charger and explanations of the mode of operations will be death with as we proceed. Other battery types cannot withstand long high-rate over-charging; the charger may have temperature or voltage sensing circuits and a microprocessor controller to adjust the charging current, and cut off at the end of charge. Our aim of providing the Construction Of A 12v Battery Charger work is to assist writers who dont know anything about Project research. Fig 1.1 : Project Organizations Block Diagram. Managing their own batteries is fun, and they know it helps the environment by not having to throw batteries away when they can recycle them. It has a thick cable ending in two heavy-duty copper alligator clips, a black clip for the battery's negative terminal and a red one for positive.
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