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  1. #1
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    Cyclo-computer powered AAA

    Is there any cyclo-computer which used AAA for power, instead of freaken button battery? I'm looking for simple, wired and want to use rechargeable battery.

    Thanks

  2. #2
    Fat Guy Rolling dcrowell's Avatar
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    Why the aversion to the button battery? They last for many months on a wired computer. I have one That's almost two years old and it still works. Wired computers don't use very much power.
    Car-Free IT Geek
    My blog: fatguy.org

    Bikes: Surly Big Dummy, 1980s Raleigh Record single-speed conversion, Bacchetta Agio

  3. #3
    Gear Hub fan
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    AAA rechargeable cells would require more frequent replacement/charging unless you used a low self discharge cell such as Sanyo Eneloops. Also the computer body would be way too big for most folks. Current draw is in the same range as a watch so button cells are the most compact and logical solution.
    Gear Hubs Owned: Rohloff disc brake, SRAM iM9 disc brake, SRAM P5 freewheel, Sachs Torpedo 3 speed freewheel, NuVinci CVT, Shimano Alfine SG S-501, Sturmey Archer S5-2 Alloy. Other: 83 Colnago Super Record, Univega Via De Oro

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  4. #4
    Senior Member socalrider's Avatar
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    The last bike computer I had that used AAA was a Cateye from the 1980's..

  5. #5
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    Thanks folks, simple I don't like buy new battery all the time and try use rechargeable AAA & AA on all gadgets. But in nowadays looks like we do not have a lot of choice for bike. Two days ago bought Trek PDX and looking for computer now, have offer: SIGMA BC1106 for $29, any opinion on that?

  6. #6
    Mike
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    Quote Originally Posted by Bosun View Post
    Thanks folks, simple I don't like buy new battery all the time and try use rechargeable AAA & AA on all gadgets. But in nowadays looks like we do not have a lot of choice for bike. Two days ago bought Trek PDX and looking for computer now, have offer: SIGMA BC1106 for $29, any opinion on that?
    Something you can do is to solder in a two cell holder in pace of the coin cell. I used a double AAA holder from Radio Shack. The biggest thing is to make sure that you do not place the + and - wires on the wrong pieces of metal. I find that the coin cells last about 1 year on average and the correct sizedifficult to find overseas. AAA are available almost everywhere and are easier to find.
    I did it about a year ago on one of my bikes and so far it had held through rain and shine.

  7. #7
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    Hm..m, this is a good idea make the base with power supply, will thinking about when my computer come. I bought SIGMA BC1609 for $38 incl shipment on Amazon.

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