Replacement battery for Cygolite NiMH?- Mtbr.com
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  1. #1
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    Replacement battery for Cygolite NiMH?

    A friend 's Cygolite Triden-X NiMH battery seems to be pooched. It's 6v or so. Think this one can be DIY'ed with a 7.4v lithium and some new connectors, or will I blow it to smithereens?

    I'd appreciate the official Light Geek upgrade for this light.

  2. #2
    psycho cyclo addict
    Reputation: edubfromktown's Avatar
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    Did you call Cygolite and ask them how much a replacement would be? Support folks there have been quite helpful in my experience.

  3. #3
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    Reputation: HEY HEY ITS HENDO's Avatar
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    the cheapest option is to make up another Ni-mh pack
    there wouldn`t be a gain going li-ion
    as you would also need a compatable charger
    just swap out the plug on something like this ...
    HPI Racing RC Baja Plazma 6v 4300mah NiMh Receiver Hump Pack Battery 101937 | eBay
    ...Scun.thorpe, UK

  4. #4
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    I don't think the NiMH and Li-ion versions of the light head are different, so upgrading to a 7.4V Li-ion battery should be OK. The driver will adapt to the higher voltage automatically. The problem, as mentioned by Hendo, is you'll need a special Li-ion charger.

  5. #5
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    Thanks guys. I'll see if he wants to try NiMH or Li-ion and new charger.

  6. #6
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    I have an old cygolight. After the original 6v lead acid battery died, I used to run it on 6 x AA for a nominal voltage of 7.2v which gave an appreciable improvement in brightness.

    Flogged the AA's to death though as the current draw was a bit high. I looked at going to C or D size NiMH, but the cost was that high I started looking at alternatives, which led me to here which led me to LED.

    I still have the cygolight as an emergency back-up - should the three LED's I now have all fail. I simply wired in a magishine plug & can run it off the 7.4v battery packs. Running the globe at higher voltages gives you more heat, more light & reduces globe life, but not so much that I would worry about it.

    It's a pretty small investment to buy a lion pack & charger & gives him the option to upgrade to an LED if he wants to later on

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