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18650 battery power

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18650 battery power Customers Reviews

  • Came as expected

    posted by ekwfung

    Build quality seems good for the price. Springs holding in batter seem a little weak, but more then good enough to hold battery against contacts.
    Good product
    I would recommend this product for a USB charging device. Tested on Samsung S4 and an IPhone 5S
  • battery backup that Works but stick with 3000mAh or less 18560s

    posted by Bonejj

    Small, compact easy to use and change batteries. It works... I got this a while ago and was waiting on all my different types of batteries to show up before giving a full review. This works best with 3000mAh 18650 batteries or less. the 3200mAh ones do not fit into the battery compartment well enough, extremely tight fit. This unit is extremely simple to use and can charge your 18650 batteries as well. I leave 3000mAh battery in it and keep a couple in my bag for when I'm out in case I need to recharge my phone a few times. I get about one full charge with a little left over in my Galaxy S3 with this setup.
    The flashlight addon that comes with the case is pretty handy and comes in use. I keep that in my backpack for those times that I just need a light to be able to get around. I use it more often than I would have thought I would have.
    If you want to keep your devices charged on the go in a small form factor, this is your easiest option. Just keep in mind that this case is not waterproof. It works though, fairly well. Don't expect it to be durable though.
  • works

    posted by kawaii33

    Seems to charge my Nokia N9 just fine. It's hard to say how fast it goes, but I think it's comparable with the charging rate from a normal usb on the pc/laptopLED that tells u when it's charging, and when it's done charging.1 cable for all the work (made for powering devices afaik)
    Not sure if it stops charging when the device is full
    For the price, it's a handy tool when desperate for power
  • Good priced battery backup

    posted by joebonsai

    Compact size, replaceable battery.Has red LED (not mentioned in description) that comes on when charging.
    I am using these battery packs with small solar panel to charge batteries during the day. Seems to work well, then at night I plug my iOS device into the battery and it recharges my phone/iPad. Works well. Nice compact design.
    Very good value for a nice battery in compact case with a cable and carrying strap. I really like it. Once the battery is charged, just plug in your USB device and it will be quickly recharged. My iPhone 5 went from 40% to 80% in about 10 minutes.
  • Small, easy of use and confortable charger

    posted by george2002

    Good looking, good working, easy to use, charges many types of battery eg 18650,18350, 16340, 17,670, 14500 (only 4.2V battery)
    Current charging may be better - measured 100-200mA of current charging (was supposed to be 450mA of charging) :( but for that price it is good choice
    After some remaking and investigation work's as expected - charging 500mA of current :) (adapted mcp73831 Li-Ion charger IC)

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