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ultrafire battery pack

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ultrafire battery pack Customers Reviews

  • Good batteries, not too expensive

    posted by thefezman

    Work well in my Ultrafire C3 Cree flashlight. it does seem a little brighter than using AAs, and the extra runtime is nice. I haven't done any run length testing, but I'm sure it has to last longer than normal NIMH batteries.
    There needs to be more flashlights that can use these batteries :)
    They seem fine to me, they're protected so you don't have to worry about them blowing up in your pocket (not a good thing!).
  • Long lasting batteries for flashlights

    posted by lancersfx

    Have purchased a pack of 2 and a full recharge time of 4-6 hours. Great value for money and have been working very well. There are other 18650 batteries on DX but verify the correct mAh rating when ordering the batteries there is 1300 and 2600. Depending on the type of equipment and its capacity requirement order the correct one.
    Buy this + the Ultrafire WF series or the SSC series as they go hand in hand to provide one of the best battery backups.
  • Surprise...no light

    posted by Yenster

    These are protected from short circuit, over-charge, and over-discharge.These have good high-drain support for flashlights.
    Using these small batteris in 3 watt flashlights will trigger the over-discharge circuit fairly suddenly and early. Once the triggers, the voltage will measure 0 V. If put into a charger for just 1 sec, the circuit will reset and then the voltage will read 3.5V which means there's still unused energy in the battery. Then the batteries can be further used in lower levels flashlights or other electronics until about 2.8V.
    Works better for lower-drain applications since nearly all the energy can be used before requiring recharge.

    If using high-drain flashlights, such as 3-5 watt, then these will shut off early and suddenly. That's probably due to lower dynamic voltage.

  • Great price!

    posted by Siftah

    They fit in my 18650 using devices perfectly (A Fenix TK11 and a SpiderFire SSC P7) and seem to work fine.
    Price is excellent, much lower than I found elsewhere.
    They're batteries, at this price you may as well have a few in reserve and keep them charged and ready. I wanted to have some spares in for camping to save me lugging chargers with me.
    They're batteries, at this price you may as well have a few in reserve and keep them charged and ready. I wanted to have some spares in for camping to save me lugging chargers with me.
  • Good battery cases

    posted by InnerCircle

    Cheap, and useful carring space.
    CR123s can be store in width.
    4 batteries in it.
    18650 protected can be store
    but a bit narrow and close.
    I ordered the blue one.
    Green one is arrived.
    but I don't care.
    feels good.
    I think these are cheapest cases you can find.
    Looks solid and tough.
    Useful cases I think.
    There's no logo of Ultrafire.
    A bit hard to open with nails.
    Because the open bump is too small and hard.
    but I don't care.
    feels good.

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