Auto battery

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'''Voltage'''
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=Overview=
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The automobile battery industry uses more of the world's lead than any other industry. Without the auto battery, there would be no electric starter- which was a big part (along with the electric starter) in the early automobile gaining widespread acceptance.
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Early auto batteries were almost all 6 volt. This required large cables/wires and was superseded by the still-used 12 volt battery in its various forms.
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==Types of auto batteries==
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===Lead acid===
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Most used by far is the "flooded lead acid" battery. Also known as a "wet cell" battery. It is relatively cheap to manufacturer and offers an adequate service life. They are heavy and relatively inefficient, though.
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===Gel cell===
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Gelled batteries, or "Gel Cells" contain acid that has been "gelled" by the addition of Silica Gel, turning the acid into a solid mass that looks like hard Jell-O. The advantage of these batteries is that it is impossible to spill acid even if they are broken - the disadvantage is that they must be charged at a slower rate (C/20) to prevent excess gas from damaging the cells. They cannot be fast charged on a conventional automotive charger or they may be permanently damaged.
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===AGM (absorbed glass mat)===
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A fairly recent advance (1985) in automotive batteries came from the aeronautics industry- the "[[AGM (absorbed glass mat) batteries]]"
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[[6 Volt]]
 
  
[[12 Volt]]
 
  
'''Types of Batteries'''
 
  
    '''Automotive'''
 
  
          [[Lead Acid]]
 
 
   
 
   
Nearly all large rechargeable batteries in common use are Lead-Acid type.The acid is typically 60% Sulfuric acid and 40% water. All Lead-Acid batteries supply about 2.14 volts per cell when fully charged.
 
 
          [[Gell]]
 
  
Gelled batteries, or "Gel Cells" contain acid that has been "gelled" by the addition of Silica Gel, turning the acid into a solid mass that looks like hard Jell-O. The advantage of these batteries is that it is impossible to spill acid even if they are broken - the disadvantage is that they must be charged at a slower rate (C/20) to prevent excess gas from damaging the cells. They cannot be fast charged on a conventional automotive charger or they may be permanently damaged.
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'''Type of Cycle'''
 
'''Type of Cycle'''
  
    [[SLI or Starting,Lighting, Ignition]]
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[[SLI or "Starting - Lighting - Ignition"]]
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SLI batteries are commonly used to start and run automobiles, where a very large starting current is needed for a short time. SLI batteries have many very thin plates with a large surface area, designed to be discharged no more than 1 to 5% from full charge. These can be damaged quickly if deep cycled.
 
 
      
 
      
    [[Deep Cycle]]
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[[Deep Cycle]]
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Deep cycle batteries are designed to put out 80% of their capacity time after time without damage. Automotive batteries can be severely damaged if heavily discharged a few times. If discharged 80% and then recharged fully, deep cycle batteries can handle from a few hundred to 1000 complete cycles, where an automotive battery might be able to last for only 30 to 50 cycles. Deep cycle batteries may not work well in automobiles because they are not designed to put out the massive power needed for startup. Many marine and RV batteries are "dual purpose" - these are deep cycle batteries that will also work as SLI batteries. Nearly all marine and many industrial batteries are sealed and may also be gelled, glass mat, and/or maintenance free. "Sealed" batteries are not totally sealed - the actual name for them is "Valve Regulated Sealed Lead-Acid Batteries", or VRSLB, sometimes called VRLA, or "Valve Regulated Lead-Acid".
 
  
 
[[Category:Electrical]]
 
[[Category:Electrical]]
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[[Category:General hotrodding]]
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[[Category:undeveloped articles]]

Revision as of 04:11, 3 March 2012

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