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  1. #1
    Tá mé ar meisce.
    Reputation: BeerCan's Avatar
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    Li-ion vs Standard Batts

    I am about to order my first set of lights (most likely dinottes) but I am really stuck on whether should order AA or Li-ion. Is there a +/- list on the 2 technologies somewhere? Does anyone have any experiences they would like to offer? They will be used mostly for rides 4 hours or less but I will be doing some endurance races/rides such as 12hr, 24hr and 100 mile races.
    thanks
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  2. #2
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    Li Ion lasts longer between charges and is lighter. AA is easier to find replacements for on the road. I use the Li-ion for saving weight (the batteries fit on top of my helmet and on the stem).

  3. #3
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    Get the AAs, and get a couple of extra spare battery carriages from dinotte. Run them with good nimh rechargeables (I'm using 2700mah Sanyo). I find this option is far more versatile and cheaper in the long run. I can use alkalines when I'm stuck in some backwater town, and my nimh are also used for other applications when I'm not riding.

    When better nimh rechargeables hit the market, I can take advantage of them too. I've seen some counterfeit 3800mah Sanyos AAs when I was in bangkok, but that's another story..

  4. #4
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    Thanks Tinier good advice.
    Does any one know if the Li-ion batteries self discharge like the NiMH one do.
    Are recharge times for Li-Ion very long, I know it capacity dependent, but is it typically 2-3 hours or 12 or more to get a full recharge from a discharged state?
    To see what is right, and not to do it, is want of courage or of principle. -- Confucius
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  5. #5
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    Quote Originally Posted by BeerCan
    Thanks Tinier good advice.
    Does any one know if the Li-ion batteries self discharge like the NiMH one do.
    Are recharge times for Li-Ion very long, I know it capacity dependent, but is it typically 2-3 hours or 12 or more to get a full recharge from a discharged state?
    I use a 4hr smart charger for my Li-Ions and a 3hr smart charger for my AA's. The capacity on the Li-Ions is much better than the AA's and they don't suffer from the self discharge problem NiMH has.

  6. #6
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    aa

    good points

    common
    cheep
    fit lots of chargers
    use in lots of devices
    available in different chemistry's (alk, nicd, nimh.)

    bad points

    discharge
    more needed / heavy

    li-ion

    good points

    need less / light weight
    last longer for size
    no discharge

    bad points

    uncommon
    expensive
    no other uses
    special charger

    there may be other points to consider
    but when you get to a certain size then the weight / size issue
    becomes more important

    for example on a set of lights using 14v
    then you need 12aa
    but the same li-ion pack will have 4 cells in it (a little bigger than the aa's)

    Alex

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