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Thread: Fenix E01 not turning on

  1. #1

    Default Fenix E01 not turning on

    I've had my E01 for roughly a year now, and it turn on anymore. I inspected the barrel and put in a fresh AAA battery. I also cleaned off the contacts on the head as well. It doesn't seem to help. Anyone know what's going on?

  2. #2
    Flashaholic* derfyled's Avatar
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    Default Re: Fenix E01 not turning on

    Quote Originally Posted by trdsupragt View Post
    I've had my E01 for roughly a year now, and it turn on anymore. I inspected the barrel and put in a fresh AAA battery. I also cleaned off the contacts on the head as well. It doesn't seem to help. Anyone know what's going on?
    Try with some other quality AAA, you might have some dead ones ?

    Are you sure the spring is still in the tube ?
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  3. #3

    Default Re: Fenix E01 not turning on

    You may also want to inspect the contacts for corrosion or oxidation / crud.

    -- Adam

  4. #4

    Default Re: Fenix E01 not turning on

    well i just used a new AAA from rayovac that i bought earlier this year. The spring is still in there as well.

    I cleaned off the contacts as best as I could.

  5. #5

    Default Re: Fenix E01 not turning on

    no guarante this will work ( IIRC it did help my ARC AAA-P) have you considered inserting a small piece of aluminium foil at the tail end of the E01?

  6. #6
    Flashaholic alantch's Avatar
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    Default Re: Fenix E01 not turning on

    Connect 2 wires from an AAA battery to the head directly. This will let you know immediately whether it's due to the head or the batt tube.

  7. #7
    Unenlightened
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    Default Re: Fenix E01 not turning on

    Use a wire instead of the barrel to link the negative of the battery with the pcb so you can find where the problem is.

  8. #8
    *Flashaholic* Sgt. LED's Avatar
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    Default Re: Fenix E01 not turning on

    New battery tried and you cleaned the contacts, that's about it for the basics.
    Best part about having a cheap light die?
    It's cheap.

    Buy 2 more!

  9. #9
    Flashaholic Flashlight Dave's Avatar
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    Default Re: Fenix E01 not turning on

    The light even though its simple in its construction does have some electronics and it is possible that some moisture or possibly battery leakage may have damaged the light. If so then the above advice maybe the best- buy two more. Could send it back to fenix if its still under warranty.

  10. #10

    Default Re: Fenix E01 not turning on

    I connected two wires from the battery to the head and it does indeed work. So I guess there's some kind of connection issue.

    Can someone explain the foil trick to me?

  11. #11
    Unenlightened
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    Default Re: Fenix E01 not turning on

    Maybe the spring became too short to maintain the circuit,so you need to put some metal between the battery and the spring to fill the gap. Good luck.

  12. #12
    Flashaholic alantch's Avatar
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    Default Re: Fenix E01 not turning on

    I have the same issue from time to time and it's always a contact issue. Try the below :
    Use a small wire and make one end into a hook and pull the spring out. Clean the inside of the tube as best you can, then lengthen the spring slightly by pulling on it's ends and reinsert into the tube. Also clean the edge / lip of the batt tube. Hope this helps.

  13. #13
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    Default Re: Fenix E01 not turning on

    I had a similar problem with my QMini CR2, I think what happened is that I tightened it too much, or too often, and it has cut a groove into the circuit board. Have a close look at the circuit board, especially near the edge. It is possible that you may have cut through the conductive material at the edge. I haven't found a fix yet, but i'm thinking a dab of solder near the edges may give me a few more weeks use until a replacement can come through
    mossyoak --> Dear God man, its your honeymoon, screw the flashlights, bring one or two and some backup batteries, and fill up all that extra room you have with condoms and alcohol.

  14. #14

    Default Re: Fenix E01 not turning on

    i cleaned it out and tried to extend the spring a bit (which was a pain in the ass). still no luck.

    At one point, the battery was starting to short so I had to remove it ASAP.

    I bought the light at REI, so perhaps I can just get it exchanged for a new one, rather than deal with messing it up even further.

  15. #15
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    Default Re: Fenix E01 not turning on

    Check the "wings" on the circuit board, and see if the copper is missing. If it is, that's your problem. The one weakpoint of twisties. Depending on if theres enough copper left, you can try putting a little solder on there, and hope it works.

    Worst case, if they won't take it back, I'll buy it off you for a couple bucks.
    Mag 1D, 2DL, 3DL, 6D hotwire+extension... Fenix E15... Surefire Z2, E1e, 6P, U2 modded with T5 XM-L... Just to name a few

  16. #16
    Flashaholic* Cataract's Avatar
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    Default Re: Fenix E01 not turning on

    I HAD THE SAME PROBLEM.

    Turns out I left an old alkaline in there and it leaked on the spring. The battery seemed fine, but the spring tip had corroded. I took it out with surgical tweezers (a small screwdriver can do it, but you'll likely scratch the inside of the tube). Then I took some sandpaper to the corroded spring tip and all is well.

    E01's are good vampires, but cleaning the spring is an annoyance, so I threw away the 50 or so old cells that kept piling up for death row and decided to keep a good NiMh in my E0. The batteries last so long in there that I couldn't even remember when I put that already dead battery in.
    Cataract,

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  17. #17
    Flashaholic* Braddah_Bill's Avatar
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    Default Re: Fenix E01 not turning on

    Take out the spring then use a long awl or something with a point....scrape the bottom of the tube where the widest part of the bottom of the spring makes contact with the tube. If the head works when you use the battery wire method, then you have a grounding problem. I fixed my light this way.
    Quote Originally Posted by Cataract View Post
    I HAD THE SAME PROBLEM.

    Turns out I left an old alkaline in there and it leaked on the spring. The battery seemed fine, but the spring tip had corroded. I took it out with surgical tweezers (a small screwdriver can do it, but you'll likely scratch the inside of the tube). Then I took some sandpaper to the corroded spring tip and all is well.

    E01's are good vampires, but cleaning the spring is an annoyance, so I threw away the 50 or so old cells that kept piling up for death row and decided to keep a good NiMh in my E0. The batteries last so long in there that I couldn't even remember when I put that already dead battery in.

  18. #18

    Default Re: Fenix E01 not turning on

    Fenixlight Limited's Warranty Policy at http://www.fenixlight.com/service.asp?action=tiaokuan
    Quote Originally Posted by trdsupragt View Post
    I've had my E01 for roughly a year now, and it turn on anymore. I inspected the barrel and put in a fresh AAA battery. I also cleaned off the contacts on the head as well. It doesn't seem to help. Anyone know what's going on?

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