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| Electronic Projects Design/Ideas/Reviews Are you building an electronic project or want to? Maybe you need some assistance? Come and submit your electronic questions here and let our experienced members find a solution. |
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2nd May 2007, 06:12 PM
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 Rechargeable AA Energizer battery I am a little confused, although the answer may be simple: Is a AA rechargeable Energizer green battery have 2.5 amps? this seems like alot please help me out | |
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2nd May 2007, 07:25 PM
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 Like he said \/ Last edited by TrevorP; 2nd May 2007 at 07:29 PM. | |
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2nd May 2007, 07:28 PM
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| 2.5 amp-hrs is a reasonable capacity expectation for a rechargeable AA. That means it can put out half an amp for 5 hrs, or one amp for 2.5 hrs.
__________________ I thought what I'd do was I'd pretend I was one of those deaf-mutes. | |
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3rd May 2007, 08:23 AM
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| Or 2.5 amps for one hour  | |
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3rd May 2007, 08:30 AM
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| hi souper This site has some battery discharge data that may help. http://www.powerstream.com/AA-tests.htm
__________________ Eric "Good enough is Perfect" PIC tutorials: Gramo's: www.digital-diy.net/ Bill's: www.blueroomelectronics.com/ | |
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3rd May 2007, 01:36 PM
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| Since you are talking about an Energizer battery then why not see its datasheet on Energizer's website? It works pretty well with a current up to 2.5A but is not so good at 5A.
__________________ Uncle $crooge | |
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3rd May 2007, 11:10 PM
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| Ok let me get this straight: My robot that I am using it for (A line following robot called linebot, which is a original name i know) uses about 200mA. So, could I run my 9.6 volt (1.2 x 8 = 9.6) 20 aH (2.5 x 8 = 20) Battery pack for 100 hours? Wouldnt it just use all 20 amps, or would it use the mA it needs? Last edited by Souper man; 3rd May 2007 at 11:19 PM. | |
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3rd May 2007, 11:27 PM
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| If you use 2500mA cells in series, then the battery has a 2500mAh rating. At 200mA the battery will last for 2500/200= 12.5 hours. A circuit takes only as much current as it needs. Your robot will use a low current when it is stopped and will use a high current when it is accellerating up a hill.
__________________ Uncle $crooge | |
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4th May 2007, 12:55 AM
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| thanks alot | |
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