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ultrafire 3.7v

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ultrafire 3.7v Customers Reviews

  • very convenient Universal Charging

    posted by directman

    11) you can charge two battery and one by one
    2) shows the LEDs is charging or not, if zyaryadka finished a light green, charging LED is still flashing signals - red / green
    3) You can charge the lithium-ion akumulyatory as a constant and on the AC
    4) charging a set of about 18,650 batteries make the 4 hour
    5) it is possible to charge the other lithium-ion akumulyatory 3.7V 14500/17500/18500/17670/18650 (only 18,650 load quickly, others not yet)
    best universal charging
    at work bought me 3 pieces
  • Very satisfied

    posted by hollisterco

    very good anyone know how to test mah? says highest available at super price i have a pretty good ohmmeter but have no clue how to check amperage
    very good some did come bad but would give it a shot again, i like these better than the red ones, but i bought those from ebay not DX, i do not recommend batteries from ebay, they are mostly old/bad no way to know for sure what youre getting
    would recommend again cant compare at this price its one of the best deals out there
  • not too bad

    posted by dealgrabber2002

    Charges 18650, 17670, and RCR123A (need to be modded)
    It a good product with a decent price.
  • Excellent Purchase!

    posted by intelboy15

    1) It is a 2400mAh capacity battery.2) 2 batteries (@ ~$5 for one)3) PCB protection against overvoltage, overdischarge, and overcharge4) Build quality on par with major brand names
    I'll be using it to build a battery pack for a old cordless drill since I can't buy any Li-Ion battery packs for the drill.

    The larger size isn't much of a hamper, although it is much larger than I had expected (roughly double the volume of that of a standard AA). The high capacity is great and it has a PCB.

    I'm sure it'll be a great buy for those high-drain CREE and Luxeon LED lights (if you can get one to fit).
    Cheaper than any retail or online store in the U.S. for the same brand and quality battery. PCB equipped for about $5 a battery.

    Buy it if you need these 18650 batteries or want to build a battery pack out of them.
  • 2600 mAh though rated "4000" = OK

    posted by hurupthy2010

    So far - Excellent performance doing appx 2600mAh compared to e.g TrustFire 2400mAh genuine rate.In other words: At this price - pt at a 20% bargain, I can only recommend this particular UltraFire, if You´re in need of new 18650´s......
    Why worry - if You buy and use some of these and perhaps some TrustFire 18650, 2400mAh, You will only become satisfied
    Buy - Buy - Buy. At this bargain, You will only become very satisfied........

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