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universal battery usb

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universal battery usb Customers Reviews

  • Universal Business USB Battery Charging

    posted by ferpiri

    the low price and that you can charge many diferent tipes of batteries.The adapter for usb port make this item more usefull.
    good buy if you have two batteries for your smartphone, because you can charge one wile the other is in use.
    nothing but time to arrive was longer than a mounth.I think this will be better if have some pictures on the box explaining the function and what is the polarity of each pin.
  • Only Chinese manual

    posted by bkeys

    Auto-polarity.Easily adjusts to all cell phone batteries I own.Two LEDs (one red, one red/green) show charging state.
    I had owned another charger (SKU 81076) which went up in a bang and a cloud of smoke after little more than a year, so I went for another one. At the time of purchase, there were no devices with EU plugs available, and I chose this one instead.I'm a bit worried by the voltages shown on the bottom: "USB 6.2V" reads a bit unusual, doesn't it?
    Once one gets used to what it tries to tell me, it's a nice device.
  • works as advertised

    posted by IanP1966

    Small, lightweight, takes any 18650 battery, cheep, simple to operate. It worked just fine on my old creative zen and i have no doubt it will work on any usb device. Very cheep to buy.
    Just buy one and keep it handy.
    I have already bought two more as stocking fillers for christmas.
  • Great product

    posted by jarren84

    Do what it meant to, the make is good plastic...not easily damage...
    maybe can come in more colors so as to match the interior of our cars..a simple LED indicator will be much better so as to let the user knows that the battery is fully charged so as to prevent over charging of any battery.
    Just buy one and try and u will see what i am trying to say. Its really paying peanuts and getting gold nuggets in return...
  • Does not include Power Supply

    posted by tz2026

    Huge capacity for the size/weight. For the few things I need to use it with, it doesn't add much size, but they will run a very long time.Can provide a wide range of voltages.Charges reasonably quickly for the capacity, and indication is clear.

    Wide range of adaptors.
    I would rate it higher if it included the AC adapter as pictured here (but not in the accompanying documentation). Even higher if it also had a car adapter. It also doesn't give a range around 18v/750ma so I don't know if my 19.5v laptop adapter would be safe, or if my 16.5v would work.

    The "voltage range" typically will mean, except for 5v (usb) devices, that it will be pack->adapter->device instead of pack->device. I don't know how they could keep it small yet allow finer setting of the voltage, but that is the only real technical complaint I have with it.
    As a USB charger, (if you have an 18v power supply available) I don't think there is any better pack for the money (under $10/1Ah). And the capacity is enough to run things for hours. They should include the recharger.

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