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  1. #1
    RC Competitor
    Join Date
    Jul 2014
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    93

    Is it still safe to use?

    I have a 2s lipo that I haven't used in a year. I stored it at 3.85 volts each cell. There isn't any puffing going on. Would it be safe to charge up and use after that long of storing it? Thanks guys.

  2. #2
    RC Racer
    Join Date
    Jun 2014
    Location
    Kirkland Washington
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    100
    I say keep a close eye on it while charging and check the voltage after it has been charged (assuming you have not problems).

  3. #3
    Traxxas Employee TireSlinger's Avatar
    Join Date
    Sep 2010
    Posts
    561
    If the pack isn't puffed and the voltage looks within acceptable limits (3.0 - 4.2v per cell) I would say yes, try it out.

    Sup makes a good point, keep an eye on it just in case, but that should be done for any battery regardless of age or condition. It's never a good idea to charge packs unattended.

  4. #4
    RC Competitor
    Join Date
    Jul 2014
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    93
    Alright thanks guys. I was told that 3.85 volts a cell was storage voltage, but I wasn't sure. Yeah I'll watch it closely on the first run for temps and even cell usage.

  5. #5
    RC Qualifier
    Join Date
    Feb 2011
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    Ontario
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    530
    How are you guys checking the volts ?

  6. #6
    Marshal ksb51rl's Avatar
    Join Date
    Nov 2006
    Location
    Northern NJ
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    16,925
    Quote Originally Posted by traxxaspro View Post
    How are you guys checking the volts ?
    Like so:

    Or with a Low Voltage Alarm. Or with a digital multimeter. Or from a charger's LED display.

    Be aware that certain packs can go inert if they are not cycled for months.
    Alt-248 on the number pad =

  7. #7
    RC Competitor
    Join Date
    Jul 2014
    Posts
    93
    Well I sure hope it works out, and I use an aftermarket cell checker.

  8. #8
    RC Competitor
    Join Date
    Aug 2014
    Posts
    81
    2-3 years = don't even try
    1-2 years = fuzzy (be careful for a few runs)
    < 1 year = fine
    I could have bought my LHS by now...

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