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emergency usb led

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emergency usb led Customers Reviews

  • Very Good Item

    posted by Mickozza

    Good quality, functionality, size, easy to use, even good looks, the features of the small things.In combination with rechargeable batteries that I bought here (SKU: 95408), I got more than a quality Emergency Charger.
    This is a really cool gadget :) small, fits easily in your pocket, works perfectly with any (quality) USB cable. For only $ 5, my HTC one X have much longer to use.
    Has reasonable price, good quality, definitely recommended this gadget.
  • Excellent product for that price

    posted by theseven

    - Cheap- 2A output- PCB contains battery protection circuitry (deep discharge, overcharge, short circuit)- Bypass diode from input to output- Step-Up converter efficiency of 70-80%- Trickle charges deep discharged batteries- Doesn't start charging if battery voltage is above ~4.15V- Fuel gauge isn't all the way off (but tends to be a bit too optimistic)
    Some data points:- PCB looks like the 2A output version, bottom picture here: http://i1138.photobucket.com/albums/n525/yulunyan/55.jpg- Battery charge completion: 4.20V- Powered off battery discharge current: 0.5mA- Powered on (idle) battery discharge current: 4.6mA (including LED)- USB output voltage (idle): 5.21V- USB output voltage (3.55V battery, 1.63A load): 4.57V (efficiency at this point: ~72%)- USB output voltage (4.1V battery, 1.75A load): 5.16V- USB output voltage (4.1V battery, 1.95A load): 4.61V
    Awesome product for that price, apparently well-engineered electronics.I'm really curious what that jumper on the PCB is good for.
  • Very nice unit

    posted by landau351

    Fits my TrustFire protected batteries. Works as expected. Charges the phone via the standard UDB. I was fortunate to have the Nokia style min-USB cables so can easily recharge the unit at home or work.
    For this price I get nearly 10,000ma battery pack.
    I would recommend this unit but it REALLY need instructions.
  • quite bright

    posted by paultech

    Small, very bright. Usable with nearly any USB power source such as laptops , battery chargers and USB batteries.The light is relatively unfocused so it good for activities near the light only. One one of my tablets it will illuminate my face when using the front camera, not the room.
    Uses 120mA at 5V
    Handy, but keep it in a safe place.
  • Drains batteries fast

    posted by EVVK

    Works and uses standard batteries. Great product idea.
    It drains a bit fast with modern phones. Consider the bigger version if you don't only want to charger half of your phones battery... but then again, it is a emergency charger.
    Simple product, that does it's job. I'll probably buy a bigger version later on.

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