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does an 18650 light with magnetic charger and multiple levels exist?

Discussion in 'Lights' started by ekremer, Aug 14, 2019.

  1. ekremer

    ekremer Manta Ray

    # of Dives: 100 - 199
    Location: Boca Raton
    707
    130
    43
    I was wondering if anyone knows of a dive light that runs an 18650 battery, has a magnetic charging system and has a high of like 1000-2000 and a low of around 500-600 lumens?


    something similar to this Warrior X? but in dive light form.
     
  2. tbone1004

    tbone1004 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
    15,910
    7,277
    113
    a single 18650 can't drive 2000 lumen. That one claims it can do it for 1.5mins which is about right, but at that point in time the battery won't be able to drive it any longer, and the emitter is going to overheat on land.
    What benefit does the clip charger have for you? The charger on that charges at 1a, so it's going to take about 4 hours to charge the battery with their clip thing. Fine for land use, but if using it for diving you'll only get the single dive out of that light.
     
  3. ekremer

    ekremer Manta Ray

    # of Dives: 100 - 199
    Location: Boca Raton
    707
    130
    43
    1000 lumens would be more than enough. I just wanted to give a range. and a magnetic charger would allow charging without breaking a seal in a damp environment.
     
  4. tbone1004

    tbone1004 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
    15,910
    7,277
    113
    @ekremer since the charging is so slow, why does it matter? It's one thing if it's a 30-60 minute charge time where you can charge it during a SIT, but with a 4 hour charge time, you're not going to be leaving it damp while it's charging. I've never had an issue swapping batteries out even with wet hands then you charge everything when you get home.
    Of note, the magnetic charging is going to lead to galvanic corrosion while underwater unless expensive electronics are put in there, and even then the contacts would have to be gold so they don't corrode naturally. UWLD has their SECS charging system, and Light and Motion has it in theirs as well, but the cost to implement that into cheap backup lights would be impractical.

    This is as close as I think you'll get.
    GoBe 800 Spot FC - Light & Motion
     
    fmerkel likes this.
  5. ekremer

    ekremer Manta Ray

    # of Dives: 100 - 199
    Location: Boca Raton
    707
    130
    43
    interesting good to know. thanks for the info :)
     
  6. ekremer

    ekremer Manta Ray

    # of Dives: 100 - 199
    Location: Boca Raton
    707
    130
    43
    So I found a dive light with a magnetic charger, so there goes your theory that they can't work.
    Mk1 Torch

    if shipping wasn't such a disaster from that UK store I would look to try one. But if someone has one does the info posted above ring true? has anyone seen galvanic corrosion? apparently it is one of that stores most popular sold lights.
     
  7. Hatul

    Hatul Solo Diver

    # of Dives: 500 - 999
    Location: Tustin, California, United States
    4,133
    603
    113
    What is magnetic charging? Do you mean inductive charging like in a Sonicare toothbrush or just that a magnet holds connector in place?
     
  8. fmerkel

    fmerkel Loggerhead Turtle

    # of Dives: 1,000 - 2,499
    Location: Salish Sea (Seattle)
    1,656
    624
    113
    That's functionally not much different than the Light & Motion light that @TBone linked to. L&M lights have a small gold-plated plug. They've been around a good while so have had a lot of field testing. They are somewhat expensive, but sell well anyway.

    I'd be suspicious of both the claim that there's a 3100mAh battery in there and the ability to charge it in 1 hour from empty. To do so would require greater than a 3A charge rate, not something you are likely to get at that price point.
     
    Hatul likes this.
  9. Must_dash

    Must_dash Angel Fish

    # of Dives: 50 - 99
    Location: Lago Maggiore, Varese, Italy
    37
    19
    8
    I had one of these and gave it to one of the kids as a first dive light. Nice and compact, neat charging. but the button sequence is programable for light levels and I often ended up in program mode rather than on or off. Personally, iIt was too fidly for me.
     

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