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  1. #1
    RC Competitor
    Join Date
    Feb 2013
    Location
    Schenectady NY
    Posts
    97

    I need help figuring out which battery is Bad

    I bought a new 1/16 Summit and a second battery a couple weeks ago. Somehow one of the batteries over charged, the battery that "overcharged" was hissing when I found it. Traxxas said it was defective and agreed to replace it. Between the time I called traxxas and the new battery arrived, the two batteries got mixed up. Neither batteries are bloated or cracked. Is there a way to check them with a voltmeter? I own a voltmeter but I have no clue how to use it! This is the meter I have


  2. #2
    RC Champion
    Join Date
    Mar 2011
    Location
    Zeeland Michigan
    Posts
    1,196
    Call the manufacture maybe they can help . What charger are u using ? u need a peak charger .
    1 Rusty VXL

  3. #3
    RC Competitor
    Join Date
    Feb 2013
    Location
    Schenectady NY
    Posts
    97
    Quote Originally Posted by rhardy60 View Post
    Call the manufacture maybe they can help . What charger are u using ? u need a peak charger .
    I used the supplied charger with the 16th Summit. I went out for a while and came back and the Battery was sizzling. I called traxxas and they sent me a replacement battery in the mail.

    My problem is: I trying to figure out which one of the two identical batteries is the bad one cause I got them mixed up. I what to pair the good battery up with the replacement battery traxxas sent me.

    Since the incident I bought two of the Traxxas Ez Peak Chargers.

    I decided to test the batteries the old school method and run them separately and record the run time on the battery with a dry erase marker. So far I only tested one 1200mah battery and I got 12 minute run time before I noticed a drop in the voltage. I warming up bcause it cold outside and I'm also letting the Summit motor cool down before I test the second battery.

  4. #4
    RC Champion
    Join Date
    Nov 2012
    Posts
    1,162
    Should have just looked for marks on the connector or battery case.

  5. #5
    RC Competitor
    Join Date
    Feb 2013
    Location
    Schenectady NY
    Posts
    97
    Quote Originally Posted by Crock View Post
    Should have just looked for marks on the connector or battery case.
    They were both brand new and don't show any signs of wear or cracks. I think I figured out the bad pack. The ESC started to blink when I plugged that pack in. DUH

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