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Charging Few Battery pack in once. Help!!!

Discussion in 'Power Electronics' started by Noa Baril, Jun 22, 2016.

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  1. Noa Baril

    Noa Baril

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    Jun 22, 2016
    So I got myself 3 battery pack, from laptop (1 pack = 6 batteries). Each "pack" is suppose to output 12V and around 5-6A.
    Each pack contains 6 batteries in serie. I pluged all packs (3) in parallel.
    So 3 packs plug in parallel of 6 batteries plug in serie. I know the voltage stay the same, but the amp increase.

    I want to know, in fact, if all pack are in parallel and each one output 5A, together they should output 15A, Right?
    Second thing is... they are able to 15A (or not?), but can I charge them to ouput only 10A?

    Please, if there is any problem, please tell me how you would fix it. And thanks to answer my many question. :)

    Have a good day.
     
  2. duke37

    duke37

    5,189
    704
    Jan 9, 2011
    Six CELLS in series to give 12V means each cell is 2V. What type of battery is this? Lead - acid?

    Putting batteries in parallel will give the capability of more current but the current will depend on what the load demands. You cannot charge them to limit the output current. A fuse close to the battery should be installed to limit excess current.
     
    Noa Baril likes this.
  3. Bluejets

    Bluejets

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    Oct 5, 2014
    Laptop batteries are normally Lithium with around 18V output from my experience.
    Any work with batteries requires care due to the explosive nature of any short or fault you may induce and Lithium would be way up at the top with respect to that.
     
  4. davenn

    davenn Moderator

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    1,711
    Sep 5, 2009
    and with that safety alert from duke37

    we will close the thread since you already have one on this subject
     
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