Advertise on Bikeforums.net



User Tag List

Results 1 to 8 of 8
  1. #1
    B.C. to D.C.
    Join Date
    Oct 2005
    Location
    between the Popeye's, the liquor store, the funeral home, and the strip club
    My Bikes
    1992 Miyata Nine 14; 1971 Raleigh Super Course fixie conversion; 2006 Jamis Nova (853 version); 2001 Diamondback Topanga (SS conversion); 1956 Rudge Sports; 1971 Raleigh Competition (processing); 199? Schwinn World Sport (processing)
    Posts
    576
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    geeks: blackburn mars 3.0 question

    So, I went to REI to buy another blackburn mars 3.0 today. I have one, and the bracket snapped off when I was moving it around on the seat post. REI only had one, the display model. I didn't test it out. When I got home and turned it on, it blinks at double or three times the rate of my old one.

    I also seem to be going through AAA batteries with the old one at a pretty good clip.

    So, what is the normative rate? ( I imagine it's the slower one) Should I bother returning one? Should I attempt to fix it? What's the cause of slow/fast blinking?

  2. #2
    not a role model JeffS's Avatar
    Join Date
    Oct 2006
    Location
    Raleigh, NC
    My Bikes
    Salsa Las Cruces - Specialized S-Works Langster - Seven Sola - Surly Big Dummy - Specialized S-Works Tricross - LeMond Fillmore - Electra Amsterdam - Velorbis Scrap Deluxe - Giant TCR Advanced - Gaulzetti - Cannondale Cyclocross Red - Speedvagen
    Posts
    4,643
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Can't help with getting this one fixed, but the breakage issue seems to be fairly common. I would return it and look for a different solution. It was a decent light, but when mine broke off while riding I wrote it off and moved on to the superflash - which I'm happier with anyway.

  3. #3
    ♋ ☮♂ ☭ ☯ -=(8)=-'s Avatar
    Join Date
    Feb 2005
    Location
    40205 'ViLLeBiLLie
    My Bikes
    Sngl Spd's, 70's- 80's vintage, D-tube Folder
    Posts
    7,643
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Im worried my 3.0 is just gonna die one day !
    I replace the batteries every 9 months whether they need
    it or not and its taken a few trips down the road sans bike
    Now, I ziptie it to an old seat reflector bracket.
    Last edited by -=(8)=-; 04-09-07 at 03:40 PM.

  4. #4
    King of the Ramsey Hills specq's Avatar
    Join Date
    Nov 2005
    Location
    Saint Paul
    Posts
    322
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Check out this thread.

    I used to have 2 Mars 3.0 - and while I still like Blackburn for a lot of things, I won't be buying another blinkie from them for a long while.

    Seriously bad design.

  5. #5
    B.C. to D.C.
    Join Date
    Oct 2005
    Location
    between the Popeye's, the liquor store, the funeral home, and the strip club
    My Bikes
    1992 Miyata Nine 14; 1971 Raleigh Super Course fixie conversion; 2006 Jamis Nova (853 version); 2001 Diamondback Topanga (SS conversion); 1956 Rudge Sports; 1971 Raleigh Competition (processing); 199? Schwinn World Sport (processing)
    Posts
    576
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    well, that's the thing. With my slow-blinking light, when I was commuting in the dark (1/2 hour each way), I was replacing them every other week.

    normal?

  6. #6
    Senior Member ken cummings's Avatar
    Join Date
    Dec 2005
    Location
    northern California
    My Bikes
    Bruce Gordon BLT, Cannondale parts bike, Ecodyne recumbent trike, Counterpoint Opus 2, miyata 1000
    Posts
    5,606
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    For the strobes I have toyed with a higher voltage charges the capacitor faster. When the capacitor reaches full charge - blink. Smaller capacitors charge faster and again would blink faster tho' with less intensity. With the same battery type in both your blinkies I'd guess they have different capacitor sizes. If you want to use fewer batteries get rechargeable ones, yes?
    This space open

  7. #7
    Seņior Member ItsJustMe's Avatar
    Join Date
    Sep 2005
    Location
    Michigan
    My Bikes
    Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
    Posts
    11,348
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    I really doubt any blinkies use capacitors to set the blink rate anymore. I haven't seen a capacitor in a blinkie for a long time.
    It's all microcontrollers now. Even in single quantities I can buy microcontrollers for less than a buck. In thousands, they get down to pennies. They're more reliable, can do a lot more, and are cheaper than the equivalent analog circuit, and they draw a lot less power.

    If one blinks faster and that's not the right behavior, I'd guess that the internal clock circuit on the microcontroller is flaky.
    Work: the 8 hours that separates bike rides.

  8. #8
    95% gasoline-free
    Join Date
    Sep 2006
    Location
    North Seattle, WA
    Posts
    23
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I had a Blackburn Mars 3.0 (I think it was a 3.0) and it seemed to go a month or so between battery changes, using alkalines. I was riding about an hour a day. I also have a PBSF, and despite being on the same amount of time, the SF has gone through one set of batteries and is still going strong, while the Blackburn has been through many sets. I ended up taking the Blackburn off as a waste of weight and batteries, and put it on my girlfriend's bike, so she's got a decent marker as she re-learns to ride.

    I should also note that within a week of switching it on, one of the LEDs died, so it's not putting out as much light as it should (and that may be contributing to bad battery life, now that I think about it). Based on my experience, I wouldn't go with another Blackburn blinkie, and would think twice before getting anything Blackburn.

    The Planet Bike Super Flash, on the other hand, absolutely rocks. Since I noticed the bad battery life on the Blackburn, I've been using the SF almost exclusively. It's bright as hell, and gingerly sips at the batteries. Planet Bike really hit the mark with that blinkie, although I'd be happy if the mounting bracket were a bit more sturdy.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •