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Li-ion Batteries.

Discussion in 'Power Electronics' started by ngunter, Dec 23, 2012.

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  1. ngunter


    Dec 23, 2012
    I was looking to upgrade a laptop battery I have, which doesn't hold much charge. I am looking to change the individual batteries within. I just have 1 question.

    The total rating for the battery pack (x6 batteries) is: +11.1V, 4400mAh, 46Wh.

    Does this mean each battery is 1/6 of the total rating. e.g 1 battery = 1.85V, 733.3mAh, 7.6Wh?

  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    The Wh rating will be close, but the batteries will be Lithium cells with a terminal voltage between 3 and 4 volts.

    Most likely these batteries are connected as 3 sets of pairs of batteries. Each pair is in parallel and these are placed in series (alternatively there are 2 sets of three cells in series that are placed in parallel.)

    The battery will fall to a little under 9V when flat, and rise to a little over 12V when fully charged.
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