Batteries Lecture 3 PDF

Batteries Hamdy Abo El Daheb  Content  THE AUTOMOTIVE BATTERY  Basic Battery Terms  Electrical connection of batteries  Requirements of the vehicle battery  How battery is made  Cell operation  Charging and Discharging  The automotive battery h...

Batteries Hamdy Abo El Daheb  Content  THE AUTOMOTIVE BATTERY  Basic Battery Terms  Electrical connection of batteries  Requirements of the vehicle battery  How battery is made  Cell operation  Charging and Discharging  The automotive battery has several important functions  Choosing the correct battery  THE AUTOMOTIVE BATTERY An automotive battery is a rechargeable battery that ‫اﻟﺘﺠﮭﯿﺰات‬ supplies electrical current to a motor vehicle. Its main purpose is to feed the starter, which starts the engine. Once the engine is running, power for the car's electrical ‫اﻟﻣوﻟد‬ systems is supplied by the alternator  Basic Battery Terms Battery - A device that stores electricity Battery Cell - Consists of Negative & Positive plates Battery Cycling - Repeated charging and discharging events Battery Plates - Are made of lead and lead oxide Charging - Current flowing into the battery from the charging system Discharging - Current flowing out of the battery  Basic Battery Principles Batteries only store power; they do not create it. Batteries provide power for starting. Batteries supply power when demand is greater that alternator output. ‫ﻣﺜﺒﺖ‬ Batteries stabilize system voltage. Electrical connection of batteries When use series and Parelle connection battery?  Requirements of the vehicle battery To provide power storage and be able to supply it quickly enough to operate the vehicle starter engine. ‫ﻣﻌﻘﻮل‬ To allow the use of parking lights for a reasonable time. To allow operation of accessories when the engine is not running. To allow dynamic memory and alarm systems to remain ‫ﻓﺘﺮة‬ active when the vehicle is left for a period. ‫ﻣﺮن‬ ‫اﻟﻣﺻﻧﻌﺔ اﻟﻣﺛﻘوﺑﺔ‬ Cell operation Charging and Discharging The automotive battery has several important functions  The automotive battery has several important functions It operates the starting engine, ignition system, electronic fuel injection, and other ‫اﻟﺪوران او اﻟﺘﺤﺮﯾﻚ‬ electrical devices for the engine during cranking and starting. It supplies all the electrical power for the vehicle accessories whenever the engine is not running or when the vehicle’s charging system is not working. ‫ﯾﺆﺛﺚ‬ ‫ﺗﺠﺎوز‬ It furnishes current for a limited time whenever electrical demands exceed charging system output. It acts as a stabilizer of voltage for the entire automotive electrical system. It stores energy for extended periods of time. How can you Choosing the correct battery?  Choosing the correct battery The correct battery depends, in the main, on just two conditions. 1. The ability to power the starter to enable minimum starting speed under very cold conditions 2. The expected use of the battery for running accessories when the engine is not running  Questions Define Battery Cycling - Charging Battery – discharging Battery?  Questions Battery Cell Consists of …… 1- Negative plates 2- Positive plates 3- Negative & Positive plates Charging battery Current ………the battery from the charging system 1- flowing out 2- flowing into 3- flowing off 4- flowing after True or false 1- An automotive battery is the only electrical source in vehicle. 2- When The battery ability to power the starter to enable minimum starting speed under very cold conditions that means this battery good. 3- Batteries only store power; they do create it.  What are the important functions of battery? How can you Choosing the correct battery? Explain with draw charging and discharging battery? What are the five components of battery? Types of batteries