18650 battery / sizes

CrushJelly on 29/10/2016 - 13:27
Last edited 30/10/2016 - 20:52

Hi guys

Have bought this BLF light. But my protected 18650 batteries that actually last as long as expected (vs the generic 1gazillion mAh batteries that last a few mins) don't fit!

I had to put in the generic stuff.

Any idea which types of 18650s, either particular brands or model types, I will have luck with?

Thanks
https://www.ozbargain.com.au/node/265459

Electrical & Electronics

Comments

  • frondono on 29/10/2016 - 14:16
    +1

    Panasonic 3400mah is a good start. have a look at the relevant forums I'm pretty sure these are the standard.

    http://www.candlepowerforums.com/vb/forum.php?s=a5ae1321de1c…

    http://budgetlightforum.com/

    • CrushJelly on 07/11/2016 - 19:54

      Hey mate. Thanks for the suggestions. Went ahead and bought some Panasonics and they fit!
      Woo! Stoked.
      Thanks heaps.

  • [Deactivated] on 29/10/2016 - 14:43
    +1

    Pull off the protection maybe. But check if it would work with a flat top battery. If not, you'd need to put a blob of solder on the end.

    • CrushJelly on 07/11/2016 - 19:55

      Got a flat top Panasonic. It worked just fine, it fit circumference-wise too.
      Thanks for the reply!

  • bananabendera on 29/10/2016 - 15:22
    +1

    Like frondono suggested, I bought those. http://www.banggood.com/2PCS-NCR-18650B-3_7V-3400mAh-Protect… they work well and fit well in I'm assuming the same BLF A6 flashlight.

    • CrushJelly on 30/10/2016 - 08:07

      Thanks mate. I bought some Panasonics, but if they don't work, I will try your suggestion. Much appreciated.

  • OptimisticPessimist on 29/10/2016 - 17:56
    +1

    If you aren't overly concerned about modifying the light itself, perhaps you could 'shorten' the contact spring at the tailcap.
    By that, I mean, cutting the spring sufficiently short, that it still makes contact. Then with some needlenose pliers, twist/bend the spring in a manner that makes it more 'neat'.
    I've had to do it to one of my budget 'zoomable' lights to fit a protected 18650 and it works fine.

    **This presumes that the protected battery is a bit too long to fit within the compartment.

    • CrushJelly on 30/10/2016 - 20:52

      Thanks. I'll have a look to see if that's possible. Actually. It was the width that was an issue. The protected battery was too thick haha. I was so perplexed.

      • OptimisticPessimist on 31/10/2016 - 12:35
        +1

        Ahh, yeh that is another possible issue with protected batteries.
        In that case, as suggested above, you can try removing the protection circuit (it has a strip connecting the negative/positive) and see if that fits.
        However, as the protection pcb is designed to protect against over discharge, over charge, over current, and other issues; take care when using or charging said battery.

        • CrushJelly on 01/11/2016 - 18:33
          +1

          Thanks mate. Will check it out. Appreciate the replies.

        • CrushJelly on 07/11/2016 - 19:55

          So I tried the Panasonics and they fit just fine. Thanks again :)

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