Advertise on Bikeforums.net



User Tag List

Results 1 to 11 of 11
  1. #1
    i'm really trying ! danny_isr's Avatar
    Join Date
    Mar 2005
    Location
    Boulder,CO
    My Bikes
    Scattante R550 2005
    Posts
    113
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Fenix L2D question

    i just came back from a ride . first time that the batteries went low to the point i didn't have turbo mode anymore. So when i arrived home i took the lights out of the bike and tried to turn them off. and i notice i have a difficulty to do so . the Button in the rear seems like is not flat any more. it's round like it has air in it.
    then i look at the other light , SAME thing. When i opened the light i heard gas/air release .
    i'm using NiMa energizers. is it possible the batteries released some gas ? very weird.
    Scattante R550
    2x Fenix L2D

  2. #2
    Senior Member mechBgon's Avatar
    Join Date
    Jul 2002
    Posts
    6,957
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    is it possible the batteries released some gas?
    Yeah. Maybe go get some better batteries. From what I've heard, Energizer's NiMH lineup isn't that great.

  3. #3
    Senior Member
    Join Date
    May 2008
    Location
    Halifax, NS
    My Bikes
    2013 Jamis Ventura Sport, 2008 Trek 7100
    Posts
    277
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I"ve never had such problems with my L2d and Energizer NiMH (any of my 6).

  4. #4
    Senior Member Not the Slowest's Avatar
    Join Date
    Oct 2007
    Location
    Riverdale, NY
    My Bikes
    2002 Seven Axiom
    Posts
    667
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Similar issue

    I just pushed the button flat and that was that.
    My guess is there develops some heat inside with any battery brand. Perhaps
    a chemical reaction, maybe from the bulb, etc.

    I have several Battery brands, Sanyo, Duracell, Evnergizer, Eneloop.
    I love the Eneloop best because I do not have to worry about make sure I rotate my batteries when I go in the draw.
    I ride 90-120 minutes and never go to a low power if the batteries were just put in (any brand). If it does go low, I pull over swap em and continue. I always carry Eneloops as my spares
    Robert
    Not The Slowest, Never The Fastest, even Solo

  5. #5
    The Fenix Shillboy varuscelli's Avatar
    Join Date
    Aug 2007
    Location
    League City, Texas
    My Bikes
    Raleigh F500 mountain bike and an exceptionally old (mid-60's) Schwinn Collegiate 5-speed.
    Posts
    477
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Go to post number 156 (and beyond) in this thread and check out the similar situation and related comments (clicking on the link will get you close to that series of posts):

    Dual Fenix L2D 100 Premium Headlight Setup (Photos)

    Sounds like a case of over-discharge (or maybe repeated over-discharge).

  6. #6
    i'm really trying ! danny_isr's Avatar
    Join Date
    Mar 2005
    Location
    Boulder,CO
    My Bikes
    Scattante R550 2005
    Posts
    113
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i don't think it's over discharge . i measured the voltage one pack had 1.2v other 1.1v.
    those batteries are almost new. i used them about 3 times...
    Scattante R550
    2x Fenix L2D

  7. #7
    Senior Member socalrider's Avatar
    Join Date
    Mar 2004
    Location
    Upland, CA
    My Bikes
    Litespeed Liege, Motorola Team Issue Eddy Mercxk, Surly Crosscheck Cyclocross bike, Fisher Supercaliber Mtn. Bike
    Posts
    5,002
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yes some batteries have gas buildup, there are even extreme examples when they have blown up.. The energizers are a name brand but the overall runtime isn't great.. I have had great luck with Titanium 2700 and Duracell 2650's..

  8. #8
    The Fenix Shillboy varuscelli's Avatar
    Join Date
    Aug 2007
    Location
    League City, Texas
    My Bikes
    Raleigh F500 mountain bike and an exceptionally old (mid-60's) Schwinn Collegiate 5-speed.
    Posts
    477
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by danny_isr View Post
    i don't think it's over discharge . i measured the voltage one pack had 1.2v other 1.1v.
    those batteries are almost new. i used them about 3 times...
    Wow, that seems odd. I mean, it seems obvious that the batteries are venting for some reason, but the question becomes "why?"

    What about your charging habits with these? Quick charge, slow charge, perhaps any chance of overcharging of batteries that were already at near capacity? What about the charger type that you're using? I dunno, any of those things might offer a clue. But it does seem really odd for this to be happening with such relatively new batteries. I wonder if this could be happening if you just got a bad set of batteries?

  9. #9
    i'm really trying ! danny_isr's Avatar
    Join Date
    Mar 2005
    Location
    Boulder,CO
    My Bikes
    Scattante R550 2005
    Posts
    113
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i charge slow as much as i can. you probably don't remember but i'm the guy with that "monster "charger
    the Schulze isl6-330 that can charge 30 cells with two ports.
    Anyhow this charger can charge very slow or very fast and has peek detection. i always choose slow if possible.,

    only the first time that i charge them at 250mA for unknown reason it didn't peek. so it was over charging them till i stopped it. but i doubt that damaged them because those cheap chargers do that on regular basis on EVERY charge.

    i had Duracells in the past and didn't get much life of them . used them in my digi camera.

    my next cells will be probably Sanyo's
    Scattante R550
    2x Fenix L2D

  10. #10
    The Fenix Shillboy varuscelli's Avatar
    Join Date
    Aug 2007
    Location
    League City, Texas
    My Bikes
    Raleigh F500 mountain bike and an exceptionally old (mid-60's) Schwinn Collegiate 5-speed.
    Posts
    477
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by danny_isr View Post
    i charge slow as much as i can. you probably don't remember but i'm the guy with that "monster "charger
    the Schulze isl6-330 that can charge 30 cells with two ports.
    Yeah, I remember NOW. (As soon as you said "monster").

    There's just been so much talk of chargers and batteries in so many different threads lately that I'm having a hard time remembering who said what in which thread and when or why it was said.

    And yeah...to me it seems really odd that this could be happening at all on new batteries, especially with your knowledge of charging. I'm stumped, unless (again) you might somehow have gotten a bad set of batteries from the start.

  11. #11
    i'm really trying ! danny_isr's Avatar
    Join Date
    Mar 2005
    Location
    Boulder,CO
    My Bikes
    Scattante R550 2005
    Posts
    113
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yeah i don't expect anyone here to remember who said what

    well those energizer cells are still OK. the reason that they where low after over an hour ride is
    probably because i played with the L2Ds a bit that day before the ride . but that venting. yes very odd.
    i will see on the next ride what's going on. if i get less life from them and if that venting returns. i will keep you posted

    regarding the L2Ds , i'm very happy with them.
    Last edited by danny_isr; 09-04-08 at 09:27 PM.
    Scattante R550
    2x Fenix L2D

Posting Permissions

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