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  1. #1
    RC poster
    Join Date
    Sep 2015
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    Question Stock stampede with 2 batteries

    Hello, i have a stampede and its completely stock with the xl5 esc and titan 12t 550 motor. i was wondering if it would burn out if i put two 7 cell, 8.4v, 4200 mah batteries on it connected with the traxxas parallel adapter?

  2. #2
    RC Racer A1ArmedToaster's Avatar
    Join Date
    Aug 2013
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    It should be fine

  3. #3
    RC Turnbuckle Jr. Greatscott's Avatar
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    Mar 2004
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    That will double your capacity, your ESC should be fine.

    What are you wanting to accomplish by doing this?
    By doubling the battery, you are doubling the weight. Your run time will increase by about 50%, but your speed and performance will reduced.
    Submarine Qualified, Chief Inducted, Navy Retired

  4. #4
    RC Turnbuckle Jr.
    Join Date
    Feb 2002
    Posts
    9,373
    Adding that much extra weight is a lot to stress that system. I wouldn't do it. It will also drastically change your already high, center of gravity.....

    Just swap out to a new battery when one goes dead. Also, due to the way nimhs are built, you might have issues with their discharge rates if trying to do that with unmatched packs. It will allow the weaker battery to discharge itself to unsafe levels.

  5. #5
    RC Racer
    Join Date
    May 2014
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    Stick in a Lipo!! You will love it

  6. #6
    RC Champion
    Join Date
    Jun 2003
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    We-Go, Chicago, IL
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    I have to agree with the LiPo suggestion, if you want that much run time on one charge, just get a huge 2s LiPo..........not sure if I'd trust the 12t Titan motor to survive a whole charge though. I've seen a lot of those over the years that burn up on a single, smaller 6-7 cell pack within a week, I've also run them on 3s LiPo through an XL5 and not hurt anything, for what that's worth.
    https://www.instagram.com/greenjeep1998/?hl=en

  7. #7
    RC Turnbuckle Jr.
    Join Date
    Feb 2002
    Posts
    9,373
    you don't even need a huge lipo......

    I have a 6500 mah 2s, and get an hour out of it

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