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  1. #1
    RC Competitor
    Join Date
    Jan 2011
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    55

    7-cell traxxas battery pack voltage?

    What should a healthy 7 cell 8.4v traxxas pack fully charged read?

    Thanks, Luke

  2. #2
    RC Turnbuckle Jr.
    Join Date
    Jul 2010
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    England
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    5,791
    They can read upwards of 9v usually, but that peak/ freshly charged voltage will soon drop back down to nearer nominal voltage- dont be too concerned about nimhs or nicads reading higher than rated.
    Keeping the Mods busy is my specialty...

  3. #3
    RC Enthusiast
    Join Date
    Jul 2012
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    21
    Why do the Nimh read higher than their rated voltage?

  4. #4
    RC Qualifier
    Join Date
    Mar 2011
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    661
    Lipo do the same. There is the nominal voltage or resting voltage then there is the charged voltage.

    Sent from my Transformer TF101 using Tapatalk 2

  5. #5
    RC Champion
    Join Date
    Feb 2012
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    2,215
    Nimh 7 cell will usually read about 9.6v when they are fully charged.
    Lipos do the same thing.
    "I like rc cars"....."WHAT? YOU'RE KIDDING!"

  6. #6
    Marshal ksb51rl's Avatar
    Join Date
    Nov 2006
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    Northern NJ
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    15,470
    Here's a graph of a normal NiMH pack charge showing volts per cell.

    The drop occurred when the charger switched to trickle. Still, end voltage was over 1.4 volts per cell. If you aren't ending at 1.4V/c minimum, your cells are weak or damaged IMO.
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