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  1. #1
    Zinophile tibikefor2's Avatar
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    How does cold affect Lithium Ion Batteries

    All:

    I have heard that cold (32f & below) can affect the run time of lithium ion based batteries.

    Does anyone have any studies or white papers on this subject?

    Thanks.
    Tibikefor2

  2. #2
    3 seconds ColorChange's Avatar
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  3. #3
    Zinophile tibikefor2's Avatar
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    I am thinking of replacing my Light & Motion NimH with a Lithium-Ion battery for longer run times. I head that Lithium-Ion batteries do not like the cold.
    Tibikefor2

  4. #4
    3 seconds ColorChange's Avatar
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    Read my post. LiIon do much better than NiMH in the cold.

  5. #5
    Sensible shoes. CastIron's Avatar
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    My L&M Li-ion has run down to -20*f with no problems.
    Mike
    Quote Originally Posted by cedricbosch View Post
    It looks silly when you have quotes from other forum members in your signature. Nobody on this forum is that funny.
    Quote Originally Posted by cedricbosch View Post
    Why am I in your signature.

  6. #6
    Dog is my co-pilot 2manybikes's Avatar
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    Quote Originally Posted by CastIron
    My L&M Li-ion has run down to -20*f with no problems.
    I don't think my house has ever been down to -20f !! There would be some problems.
    [SIGPIC][/SIGPIC]

  7. #7
    Seņior Member ItsJustMe's Avatar
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    Yeah, it's a bummer. When I bought my HID parts, the stuff I had read indicated the LiIon was useless in the cold, and NiMH worked better, so I went with NiMH though I'd have preferred LiIon due to lower weight. I'm not a weight weenie but if 2 things are the same cost and the one that's 2 pounds lighter works better, it's a no-brainer.
    Ah well, I'm stuck with it for a few years until the battery craps out.

    But FWIW, My NiMH has performed totally fine down to -5*F which is as cold as I've seen since I got it. I do charge it more when it's cold, and I bring it inside, and I don't really keep track of runtime; I have nominal 3.5 hours, but my commute is 45 minutes, I only usually use the light on the way in, and I charge "when I think of it" which is usually every 3 to 4 days, so I'm pushing it sometimes. When it's really cold I try to remember to charge every other day. Besides on those days sometimes I'm running the rear strobe in the afternoon, which draws a lot less but it does take the battery down a bit.
    Work: the 8 hours that separates bike rides.

  8. #8
    Sensible shoes. CastIron's Avatar
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    Quote Originally Posted by 2manybikes
    I don't think my house has ever been down to -20f !! There would be some problems.
    I actually use it on a bicycle outdoors.
    Mike
    Quote Originally Posted by cedricbosch View Post
    It looks silly when you have quotes from other forum members in your signature. Nobody on this forum is that funny.
    Quote Originally Posted by cedricbosch View Post
    Why am I in your signature.

  9. #9
    Dog is my co-pilot 2manybikes's Avatar
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    Quote Originally Posted by CastIron
    I actually use it on a bicycle outdoors.
    I get it.

    I have experienced -30 in another place. The lead acid battery in my car was not working very well. But it worked just good enough. I should have used a 110v battery warmer.
    [SIGPIC][/SIGPIC]

  10. #10
    Zinophile tibikefor2's Avatar
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    Thanks for the feedback and advice
    Tibikefor2

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